/* prevent execution of jQuery if included more than once */
if(typeof window.jQuery == "undefined") {
/*
 * jQuery 1.1.1 - New Wave Javascript
 *
 * Copyright (c) 2007 John Resig (jquery.com)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * $Date: 2007-01-22 00:27:54 -0500 (Mon, 22 Jan 2007) $
 * $Rev: 1153 $
 */

// Global undefined variable
window.undefined = window.undefined;
var jQuery = function(a,c) {
  // If the context is global, return a new object
  if ( window == this )
    return new jQuery(a,c);

  // Make sure that a selection was provided
  a = a || document;
  
  // HANDLE: $(function)
  // Shortcut for document ready
  if ( jQuery.isFunction(a) )
    return new jQuery(document)[ jQuery.fn.ready ? "ready" : "load" ]( a );
  
  // Handle HTML strings
  if ( typeof a  == "string" ) {
    // HANDLE: $(html) -> $(array)
    var m = /^[^<]*(<(.|\n)+>)[^>]*$/.exec(a);
    if ( m )
      a = jQuery.clean( [ m[1] ] );
    
    // HANDLE: $(expr)
    else
      return new jQuery( c ).find( a );
  }
  
  return this.setArray(
    // HANDLE: $(array)
    a.constructor == Array && a ||

    // HANDLE: $(arraylike)
    // Watch for when an array-like object is passed as the selector
    (a.jquery || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType) && jQuery.makeArray( a ) ||

    // HANDLE: $(*)
    [ a ] );
};

// Map over the $ in case of overwrite
if ( typeof $ != "undefined" )
  jQuery._$ = $;
  
// Map the jQuery namespace to the '$' one
var $ = jQuery;

jQuery.fn = jQuery.prototype = {
  jquery: "1.1.1",

  size: function() {
    return this.length;
  },
  
  length: 0,

  get: function( num ) {
    return num == undefined ?

      // Return a 'clean' array
      jQuery.makeArray( this ) :

      // Return just the object
      this[num];
  },
  pushStack: function( a ) {
    var ret = jQuery(this);
    ret.prevObject = this;
    return ret.setArray( a );
  },
  setArray: function( a ) {
    this.length = 0;
    [].push.apply( this, a );
    return this;
  },
  each: function( fn, args ) {
    return jQuery.each( this, fn, args );
  },
  index: function( obj ) {
    var pos = -1;
    this.each(function(i){
      if ( this == obj ) pos = i;
    });
    return pos;
  },

  attr: function( key, value, type ) {
    var obj = key;
    
    // Look for the case where we're accessing a style value
    if ( key.constructor == String )
      if ( value == undefined )
        return this.length && jQuery[ type || "attr" ]( this[0], key ) || undefined;
      else {
        obj = {};
        obj[ key ] = value;
      }
    
    // Check to see if we're setting style values
    return this.each(function(index){
      // Set all the styles
      for ( var prop in obj )
        jQuery.attr(
          type ? this.style : this,
          prop, jQuery.prop(this, obj[prop], type, index, prop)
        );
    });
  },

  css: function( key, value ) {
    return this.attr( key, value, "curCSS" );
  },

  text: function(e) {
    if ( typeof e == "string" )
      return this.empty().append( document.createTextNode( e ) );

    var t = "";
    jQuery.each( e || this, function(){
      jQuery.each( this.childNodes, function(){
        if ( this.nodeType != 8 )
          t += this.nodeType != 1 ?
            this.nodeValue : jQuery.fn.text([ this ]);
      });
    });
    return t;
  },

  wrap: function() {
    // The elements to wrap the target around
    var a = jQuery.clean(arguments);

    // Wrap each of the matched elements individually
    return this.each(function(){
      // Clone the structure that we're using to wrap
      var b = a[0].cloneNode(true);

      // Insert it before the element to be wrapped
      this.parentNode.insertBefore( b, this );

      // Find the deepest point in the wrap structure
      while ( b.firstChild )
        b = b.firstChild;

      // Move the matched element to within the wrap structure
      b.appendChild( this );
    });
  },
  append: function() {
    return this.domManip(arguments, true, 1, function(a){
      this.appendChild( a );
    });
  },
  prepend: function() {
    return this.domManip(arguments, true, -1, function(a){
      this.insertBefore( a, this.firstChild );
    });
  },
  before: function() {
    return this.domManip(arguments, false, 1, function(a){
      this.parentNode.insertBefore( a, this );
    });
  },
  after: function() {
    return this.domManip(arguments, false, -1, function(a){
      this.parentNode.insertBefore( a, this.nextSibling );
    });
  },
  end: function() {
    return this.prevObject || jQuery([]);
  },
  find: function(t) {
    return this.pushStack( jQuery.map( this, function(a){
      return jQuery.find(t,a);
    }) );
  },
  clone: function(deep) {
    return this.pushStack( jQuery.map( this, function(a){
      return a.cloneNode( deep != undefined ? deep : true );
    }) );
  },

  filter: function(t) {
    return this.pushStack(
      jQuery.isFunction( t ) &&
      jQuery.grep(this, function(el, index){
        return t.apply(el, [index])
      }) ||

      jQuery.multiFilter(t,this) );
  },

  not: function(t) {
    return this.pushStack(
      t.constructor == String &&
      jQuery.multiFilter(t,this,true) ||

      jQuery.grep(this,function(a){
          if ( t.constructor == Array || t.jquery )
            return jQuery.inArray( t, a ) < 0;
          else
            return a != t;
      }) );
  },

  add: function(t) {
    return this.pushStack( jQuery.merge(
      this.get(),
      t.constructor == String ?
        jQuery(t).get() :
        t.length != undefined && !t.nodeName ?
          t : [t] )
    );
  },
  is: function(expr) {
    return expr ? jQuery.filter(expr,this).r.length > 0 : false;
  },

  val: function( val ) {
    return val == undefined ?
      ( this.length ? this[0].value : null ) :
      this.attr( "value", val );
  },

  html: function( val ) {
    return val == undefined ?
      ( this.length ? this[0].innerHTML : null ) :
      this.empty().append( val );
  },
  domManip: function(args, table, dir, fn){
    var clone = this.length > 1; 
    var a = jQuery.clean(args);
    if ( dir < 0 )
      a.reverse();

    return this.each(function(){
      var obj = this;

      if ( table && jQuery.nodeName(this, "table") && jQuery.nodeName(a[0], "tr") )
        obj = this.getElementsByTagName("tbody")[0] || this.appendChild(document.createElement("tbody"));

      jQuery.each( a, function(){
        fn.apply( obj, [ clone ? this.cloneNode(true) : this ] );
      });

    });
  }
};

jQuery.extend = jQuery.fn.extend = function() {
  // copy reference to target object
  var target = arguments[0],
    a = 1;

  // extend jQuery itself if only one argument is passed
  if ( arguments.length == 1 ) {
    target = this;
    a = 0;
  }
  var prop;
  while (prop = arguments[a++])
    // Extend the base object
    for ( var i in prop ) target[i] = prop[i];

  // Return the modified object
  return target;
};

jQuery.extend({
  noConflict: function() {
    if ( jQuery._$ )
      $ = jQuery._$;
    return jQuery;
  },

  // This may seem like some crazy code, but trust me when I say that this
  // is the only cross-browser way to do this. --John
  isFunction: function( fn ) {
    return !!fn && typeof fn != "string" &&
      typeof fn[0] == "undefined" && /function/i.test( fn + "" );
  },

  nodeName: function( elem, name ) {
    return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
  },
  // args is for internal usage only
  each: function( obj, fn, args ) {
    if ( obj.length == undefined )
      for ( var i in obj )
        fn.apply( obj[i], args || [i, obj[i]] );
    else
      for ( var i = 0, ol = obj.length; i < ol; i++ )
        if ( fn.apply( obj[i], args || [i, obj[i]] ) === false ) break;
    return obj;
  },
  
  prop: function(elem, value, type, index, prop){
      // Handle executable functions
      if ( jQuery.isFunction( value ) )
        return value.call( elem, [index] );
        
      // exclude the following css properties to add px
      var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;

      // Handle passing in a number to a CSS property
      if ( value.constructor == Number && type == "curCSS" && !exclude.test(prop) )
        return value + "px";

      return value;
  },

  className: {
    // internal only, use addClass("class")
    add: function( elem, c ){
      jQuery.each( c.split(/\s+/), function(i, cur){
        if ( !jQuery.className.has( elem.className, cur ) )
          elem.className += ( elem.className ? " " : "" ) + cur;
      });
    },

    // internal only, use removeClass("class")
    remove: function( elem, c ){
      elem.className = c ?
        jQuery.grep( elem.className.split(/\s+/), function(cur){
          return !jQuery.className.has( c, cur );  
        }).join(" ") : "";
    },

    // internal only, use is(".class")
    has: function( t, c ) {
      t = t.className || t;
      return t && new RegExp("(^|\\s)" + c + "(\\s|$)").test( t );
    }
  },
  swap: function(e,o,f) {
    for ( var i in o ) {
      e.style["old"+i] = e.style[i];
      e.style[i] = o[i];
    }
    f.apply( e, [] );
    for ( var i in o )
      e.style[i] = e.style["old"+i];
  },

  css: function(e,p) {
    if ( p == "height" || p == "width" ) {
      var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];

      jQuery.each( d, function(){
        old["padding" + this] = 0;
        old["border" + this + "Width"] = 0;
      });

      jQuery.swap( e, old, function() {
        if (jQuery.css(e,"display") != "none") {
          oHeight = e.offsetHeight;
          oWidth = e.offsetWidth;
        } else {
          e = jQuery(e.cloneNode(true))
            .find(":radio").removeAttr("checked").end()
            .css({
              visibility: "hidden", position: "absolute", display: "block", right: "0", left: "0"
            }).appendTo(e.parentNode)[0];

          var parPos = jQuery.css(e.parentNode,"position");
          if ( parPos == "" || parPos == "static" )
            e.parentNode.style.position = "relative";

          oHeight = e.clientHeight;
          oWidth = e.clientWidth;

          if ( parPos == "" || parPos == "static" )
            e.parentNode.style.position = "static";

          e.parentNode.removeChild(e);
        }
      });

      return p == "height" ? oHeight : oWidth;
    }

    return jQuery.curCSS( e, p );
  },

  curCSS: function(elem, prop, force) {
    var ret;
    
    if (prop == "opacity" && jQuery.browser.msie)
      return jQuery.attr(elem.style, "opacity");
      
    if (prop == "float" || prop == "cssFloat")
        prop = jQuery.browser.msie ? "styleFloat" : "cssFloat";

    if (!force && elem.style[prop])
      ret = elem.style[prop];

    else if (document.defaultView && document.defaultView.getComputedStyle) {

      if (prop == "cssFloat" || prop == "styleFloat")
        prop = "float";

      prop = prop.replace(/([A-Z])/g,"-$1").toLowerCase();
      var cur = document.defaultView.getComputedStyle(elem, null);

      if ( cur )
        ret = cur.getPropertyValue(prop);
      else if ( prop == "display" )
        ret = "none";
      else
        jQuery.swap(elem, { display: "block" }, function() {
            var c = document.defaultView.getComputedStyle(this, "");
            ret = c && c.getPropertyValue(prop) || "";
        });

    } else if (elem.currentStyle) {

      var newProp = prop.replace(/\-(\w)/g,function(m,c){return c.toUpperCase();});
      ret = elem.currentStyle[prop] || elem.currentStyle[newProp];
      
    }

    return ret;
  },
  
  clean: function(a) {
    var r = [];

    jQuery.each( a, function(i,arg){
      if ( !arg ) return;

      if ( arg.constructor == Number )
        arg = arg.toString();
      
       // Convert html string into DOM nodes
      if ( typeof arg == "string" ) {
        // Trim whitespace, otherwise indexOf won't work as expected
        var s = jQuery.trim(arg), div = document.createElement("div"), tb = [];

        var wrap =
           // option or optgroup
          !s.indexOf("<opt") &&
          [1, "<select>", "</select>"] ||
          
          (!s.indexOf("<thead") || !s.indexOf("<tbody") || !s.indexOf("<tfoot")) &&
          [1, "<table>", "</table>"] ||
          
          !s.indexOf("<tr") &&
          [2, "<table><tbody>", "</tbody></table>"] ||
          
           // <thead> matched above
          (!s.indexOf("<td") || !s.indexOf("<th")) &&
          [3, "<table><tbody><tr>", "</tr></tbody></table>"] ||
          
          [0,"",""];

        // Go to html and back, then peel off extra wrappers
        div.innerHTML = wrap[1] + s + wrap[2];
        
        // Move to the right depth
        while ( wrap[0]-- )
          div = div.firstChild;
        
        // Remove IE's autoinserted <tbody> from table fragments
        if ( jQuery.browser.msie ) {
          
          // String was a <table>, *may* have spurious <tbody>
          if ( !s.indexOf("<table") && s.indexOf("<tbody") < 0 ) 
            tb = div.firstChild && div.firstChild.childNodes;
            
          // String was a bare <thead> or <tfoot>
          else if ( wrap[1] == "<table>" && s.indexOf("<tbody") < 0 )
            tb = div.childNodes;

          for ( var n = tb.length-1; n >= 0 ; --n )
            if ( jQuery.nodeName(tb[n], "tbody") && !tb[n].childNodes.length )
              tb[n].parentNode.removeChild(tb[n]);
          
        }
        
        arg = div.childNodes;
      }

      if ( arg.length === 0 )
        return;
      
      if ( arg[0] == undefined )
        r.push( arg );
      else
        r = jQuery.merge( r, arg );

    });

    return r;
  },
  
  attr: function(elem, name, value){
    var fix = {
      "for": "htmlFor",
      "class": "className",
      "float": jQuery.browser.msie ? "styleFloat" : "cssFloat",
      cssFloat: jQuery.browser.msie ? "styleFloat" : "cssFloat",
      innerHTML: "innerHTML",
      className: "className",
      value: "value",
      disabled: "disabled",
      checked: "checked",
      readonly: "readOnly",
      selected: "selected"
    };
    
    // IE actually uses filters for opacity ... elem is actually elem.style
    if ( name == "opacity" && jQuery.browser.msie && value != undefined ) {
      // IE has trouble with opacity if it does not have layout
      // Force it by setting the zoom level
      elem.zoom = 1; 

      // Set the alpha filter to set the opacity
      return elem.filter = elem.filter.replace(/alpha\([^\)]*\)/gi,"") +
        ( value == 1 ? "" : "alpha(opacity=" + value * 100 + ")" );

    } else if ( name == "opacity" && jQuery.browser.msie )
      return elem.filter ? 
        parseFloat( elem.filter.match(/alpha\(opacity=(.*)\)/)[1] ) / 100 : 1;
    
    // Mozilla doesn't play well with opacity 1
    if ( name == "opacity" && jQuery.browser.mozilla && value == 1 )
      value = 0.9999;

    // Certain attributes only work when accessed via the old DOM 0 way
    if ( fix[name] ) {
      if ( value != undefined ) elem[fix[name]] = value;
      return elem[fix[name]];

    } else if ( value == undefined && jQuery.browser.msie && jQuery.nodeName(elem, "form") && (name == "action" || name == "method") )
      return elem.getAttributeNode(name).nodeValue;

    // IE elem.getAttribute passes even for style
    else if ( elem.tagName ) {
      if ( value != undefined ) elem.setAttribute( name, value );
      return elem.getAttribute( name );

    } else {
      name = name.replace(/-([a-z])/ig,function(z,b){return b.toUpperCase();});
      if ( value != undefined ) elem[name] = value;
      return elem[name];
    }
  },
  trim: function(t){
    return t.replace(/^\s+|\s+$/g, "");
  },

  makeArray: function( a ) {
    var r = [];

    if ( a.constructor != Array )
      for ( var i = 0, al = a.length; i < al; i++ )
        r.push( a[i] );
    else
      r = a.slice( 0 );

    return r;
  },

  inArray: function( b, a ) {
    for ( var i = 0, al = a.length; i < al; i++ )
      if ( a[i] == b )
        return i;
    return -1;
  },
  merge: function(first, second) {
    var r = [].slice.call( first, 0 );

    // Now check for duplicates between the two arrays
    // and only add the unique items
    for ( var i = 0, sl = second.length; i < sl; i++ )
      // Check for duplicates
      if ( jQuery.inArray( second[i], r ) == -1 )
        // The item is unique, add it
        first.push( second[i] );

    return first;
  },
  grep: function(elems, fn, inv) {
    // If a string is passed in for the function, make a function
    // for it (a handy shortcut)
    if ( typeof fn == "string" )
      fn = new Function("a","i","return " + fn);

    var result = [];

    // Go through the array, only saving the items
    // that pass the validator function
    for ( var i = 0, el = elems.length; i < el; i++ )
      if ( !inv && fn(elems[i],i) || inv && !fn(elems[i],i) )
        result.push( elems[i] );

    return result;
  },
  map: function(elems, fn) {
    // If a string is passed in for the function, make a function
    // for it (a handy shortcut)
    if ( typeof fn == "string" )
      fn = new Function("a","return " + fn);

    var result = [], r = [];

    // Go through the array, translating each of the items to their
    // new value (or values).
    for ( var i = 0, el = elems.length; i < el; i++ ) {
      var val = fn(elems[i],i);

      if ( val !== null && val != undefined ) {
        if ( val.constructor != Array ) val = [val];
        result = result.concat( val );
      }
    }

    var r = result.length ? [ result[0] ] : [];

    check: for ( var i = 1, rl = result.length; i < rl; i++ ) {
      for ( var j = 0; j < i; j++ )
        if ( result[i] == r[j] )
          continue check;

      r.push( result[i] );
    }

    return r;
  }
});
 
/*
 * Whether the W3C compliant box model is being used.
 *
 * @property
 * @name $.boxModel
 * @type Boolean
 * @cat JavaScript
 */
new function() {
  var b = navigator.userAgent.toLowerCase();

  // Figure out what browser is being used
  jQuery.browser = {
    safari: /webkit/.test(b),
    opera: /opera/.test(b),
    msie: /msie/.test(b) && !/opera/.test(b),
    mozilla: /mozilla/.test(b) && !/(compatible|webkit)/.test(b)
  };

  // Check to see if the W3C box model is being used
  jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
};

jQuery.each({
  parent: "a.parentNode",
  parents: "jQuery.parents(a)",
  next: "jQuery.nth(a,2,'nextSibling')",
  prev: "jQuery.nth(a,2,'previousSibling')",
  siblings: "jQuery.sibling(a.parentNode.firstChild,a)",
  children: "jQuery.sibling(a.firstChild)"
}, function(i,n){
  jQuery.fn[ i ] = function(a) {
    var ret = jQuery.map(this,n);
    if ( a && typeof a == "string" )
      ret = jQuery.multiFilter(a,ret);
    return this.pushStack( ret );
  };
});

jQuery.each({
  appendTo: "append",
  prependTo: "prepend",
  insertBefore: "before",
  insertAfter: "after"
}, function(i,n){
  jQuery.fn[ i ] = function(){
    var a = arguments;
    return this.each(function(){
      for ( var j = 0, al = a.length; j < al; j++ )
        jQuery(a[j])[n]( this );
    });
  };
});

jQuery.each( {
  removeAttr: function( key ) {
    jQuery.attr( this, key, "" );
    this.removeAttribute( key );
  },
  addClass: function(c){
    jQuery.className.add(this,c);
  },
  removeClass: function(c){
    jQuery.className.remove(this,c);
  },
  toggleClass: function( c ){
    jQuery.className[ jQuery.className.has(this,c) ? "remove" : "add" ](this, c);
  },
  remove: function(a){
    if ( !a || jQuery.filter( a, [this] ).r.length )
      this.parentNode.removeChild( this );
  },
  empty: function() {
    while ( this.firstChild )
      this.removeChild( this.firstChild );
  }
}, function(i,n){
  jQuery.fn[ i ] = function() {
    return this.each( n, arguments );
  };
});

jQuery.each( [ "eq", "lt", "gt", "contains" ], function(i,n){
  jQuery.fn[ n ] = function(num,fn) {
    return this.filter( ":" + n + "(" + num + ")", fn );
  };
});

jQuery.each( [ "height", "width" ], function(i,n){
  jQuery.fn[ n ] = function(h) {
    return h == undefined ?
      ( this.length ? jQuery.css( this[0], n ) : null ) :
      this.css( n, h.constructor == String ? h : h + "px" );
  };
});
jQuery.extend({
  expr: {
    "": "m[2]=='*'||jQuery.nodeName(a,m[2])",
    "#": "a.getAttribute('id')==m[2]",
    ":": {
      // Position Checks
      lt: "i<m[3]-0",
      gt: "i>m[3]-0",
      nth: "m[3]-0==i",
      eq: "m[3]-0==i",
      first: "i==0",
      last: "i==r.length-1",
      even: "i%2==0",
      odd: "i%2",

      // Child Checks
      "nth-child": "jQuery.nth(a.parentNode.firstChild,m[3],'nextSibling',a)==a",
      "first-child": "jQuery.nth(a.parentNode.firstChild,1,'nextSibling')==a",
      "last-child": "jQuery.nth(a.parentNode.lastChild,1,'previousSibling')==a",
      "only-child": "jQuery.sibling(a.parentNode.firstChild).length==1",

      // Parent Checks
      parent: "a.firstChild",
      empty: "!a.firstChild",

      // Text Check
      contains: "jQuery.fn.text.apply([a]).indexOf(m[3])>=0",

      // Visibility
      visible: 'a.type!="hidden"&&jQuery.css(a,"display")!="none"&&jQuery.css(a,"visibility")!="hidden"',
      hidden: 'a.type=="hidden"||jQuery.css(a,"display")=="none"||jQuery.css(a,"visibility")=="hidden"',

      // Form attributes
      enabled: "!a.disabled",
      disabled: "a.disabled",
      checked: "a.checked",
      selected: "a.selected||jQuery.attr(a,'selected')",

      // Form elements
      text: "a.type=='text'",
      radio: "a.type=='radio'",
      checkbox: "a.type=='checkbox'",
      file: "a.type=='file'",
      password: "a.type=='password'",
      submit: "a.type=='submit'",
      image: "a.type=='image'",
      reset: "a.type=='reset'",
      button: 'a.type=="button"||jQuery.nodeName(a,"button")',
      input: "/input|select|textarea|button/i.test(a.nodeName)"
    },
    ".": "jQuery.className.has(a,m[2])",
    "@": {
      "=": "z==m[4]",
      "!=": "z!=m[4]",
      "^=": "z&&!z.indexOf(m[4])",
      "$=": "z&&z.substr(z.length - m[4].length,m[4].length)==m[4]",
      "*=": "z&&z.indexOf(m[4])>=0",
      "": "z",
      _resort: function(m){
        return ["", m[1], m[3], m[2], m[5]];
      },
      _prefix: "z=a[m[3]]||jQuery.attr(a,m[3]);"
    },
    "[": "jQuery.find(m[2],a).length"
  },
  
  // The regular expressions that power the parsing engine
  parse: [
    // Match: [@value='test'], [@foo]
    /^\[ *(@)([a-z0-9_-]*) *([!*$^=]*) *('?"?)(.*?)\4 *\]/i,

    // Match: [div], [div p]
    /^(\[)\s*(.*?(\[.*?\])?[^[]*?)\s*\]/,

    // Match: :contains('foo')
    /^(:)([a-z0-9_-]*)\("?'?(.*?(\(.*?\))?[^(]*?)"?'?\)/i,

    // Match: :even, :last-chlid
    /^([:.#]*)([a-z0-9_*-]*)/i
  ],

  token: [
    /^(\/?\.\.)/, "a.parentNode",
    /^(>|\/)/, "jQuery.sibling(a.firstChild)",
    /^(\+)/, "jQuery.nth(a,2,'nextSibling')",
    /^(~)/, function(a){
      var s = jQuery.sibling(a.parentNode.firstChild);
      return s.slice(0, jQuery.inArray(a,s));
    }
  ],

  multiFilter: function( expr, elems, not ) {
    var old, cur = [];

    while ( expr && expr != old ) {
      old = expr;
      var f = jQuery.filter( expr, elems, not );
      expr = f.t.replace(/^\s*,\s*/, "" );
      cur = not ? elems = f.r : jQuery.merge( cur, f.r );
    }

    return cur;
  },
  find: function( t, context ) {
    // Quickly handle non-string expressions
    if ( typeof t != "string" )
      return [ t ];

    // Make sure that the context is a DOM Element
    if ( context && !context.nodeType )
      context = null;

    // Set the correct context (if none is provided)
    context = context || document;

    // Handle the common XPath // expression
    if ( !t.indexOf("//") ) {
      context = context.documentElement;
      t = t.substr(2,t.length);

    // And the / root expression
    } else if ( !t.indexOf("/") ) {
      context = context.documentElement;
      t = t.substr(1,t.length);
      if ( t.indexOf("/") >= 1 )
        t = t.substr(t.indexOf("/"),t.length);
    }

    // Initialize the search
    var ret = [context], done = [], last = null;

    // Continue while a selector expression exists, and while
    // we're no longer looping upon ourselves
    while ( t && last != t ) {
      var r = [];
      last = t;

      t = jQuery.trim(t).replace( /^\/\//i, "" );

      var foundToken = false;

      // An attempt at speeding up child selectors that
      // point to a specific element tag
      var re = /^[\/>]\s*([a-z0-9*-]+)/i;
      var m = re.exec(t);

      if ( m ) {
        // Perform our own iteration and filter
        jQuery.each( ret, function(){
          for ( var c = this.firstChild; c; c = c.nextSibling )
            if ( c.nodeType == 1 && ( jQuery.nodeName(c, m[1]) || m[1] == "*" ) )
              r.push( c );
        });

        ret = r;
        t = t.replace( re, "" );
        if ( t.indexOf(" ") == 0 ) continue;
        foundToken = true;
      } else {
        // Look for pre-defined expression tokens
        for ( var i = 0; i < jQuery.token.length; i += 2 ) {
          // Attempt to match each, individual, token in
          // the specified order
          var re = jQuery.token[i];
          var m = re.exec(t);

          // If the token match was found
          if ( m ) {
            // Map it against the token's handler
            r = ret = jQuery.map( ret, jQuery.isFunction( jQuery.token[i+1] ) ?
              jQuery.token[i+1] :
              function(a){ return eval(jQuery.token[i+1]); });

            // And remove the token
            t = jQuery.trim( t.replace( re, "" ) );
            foundToken = true;
            break;
          }
        }
      }

      // See if there's still an expression, and that we haven't already
      // matched a token
      if ( t && !foundToken ) {
        // Handle multiple expressions
        if ( !t.indexOf(",") ) {
          // Clean the result set
          if ( ret[0] == context ) ret.shift();

          // Merge the result sets
          jQuery.merge( done, ret );

          // Reset the context
          r = ret = [context];

          // Touch up the selector string
          t = " " + t.substr(1,t.length);

        } else {
          // Optomize for the case nodeName#idName
          var re2 = /^([a-z0-9_-]+)(#)([a-z0-9\\*_-]*)/i;
          var m = re2.exec(t);
          
          // Re-organize the results, so that they're consistent
          if ( m ) {
             m = [ 0, m[2], m[3], m[1] ];

          } else {
            // Otherwise, do a traditional filter check for
            // ID, class, and element selectors
            re2 = /^([#.]?)([a-z0-9\\*_-]*)/i;
            m = re2.exec(t);
          }

          // Try to do a global search by ID, where we can
          if ( m[1] == "#" && ret[ret.length-1].getElementById ) {
            // Optimization for HTML document case
            var oid = ret[ret.length-1].getElementById(m[2]);

            // Do a quick check for node name (where applicable) so
            // that div#foo searches will be really fast
            ret = r = oid && 
              (!m[3] || jQuery.nodeName(oid, m[3])) ? [oid] : [];

          } else {
            // Pre-compile a regular expression to handle class searches
            if ( m[1] == "." )
              var rec = new RegExp("(^|\\s)" + m[2] + "(\\s|$)");

            // We need to find all descendant elements, it is more
            // efficient to use getAll() when we are already further down
            // the tree - we try to recognize that here
            jQuery.each( ret, function(){
              // Grab the tag name being searched for
              var tag = m[1] != "" || m[0] == "" ? "*" : m[2];

              // Handle IE7 being really dumb about <object>s
              if ( jQuery.nodeName(this, "object") && tag == "*" )
                tag = "param";

              jQuery.merge( r,
                m[1] != "" && ret.length != 1 ?
                  jQuery.getAll( this, [], m[1], m[2], rec ) :
                  this.getElementsByTagName( tag )
              );
            });

            // It's faster to filter by class and be done with it
            if ( m[1] == "." && ret.length == 1 )
              r = jQuery.grep( r, function(e) {
                return rec.test(e.className);
              });

            // Same with ID filtering
            if ( m[1] == "#" && ret.length == 1 ) {
              // Remember, then wipe out, the result set
              var tmp = r;
              r = [];

              // Then try to find the element with the ID
              jQuery.each( tmp, function(){
                if ( this.getAttribute("id") == m[2] ) {
                  r = [ this ];
                  return false;
                }
              });
            }

            ret = r;
          }

          t = t.replace( re2, "" );
        }

      }

      // If a selector string still exists
      if ( t ) {
        // Attempt to filter it
        var val = jQuery.filter(t,r);
        ret = r = val.r;
        t = jQuery.trim(val.t);
      }
    }

    // Remove the root context
    if ( ret && ret[0] == context ) ret.shift();

    // And combine the results
    jQuery.merge( done, ret );

    return done;
  },

  filter: function(t,r,not) {
    // Look for common filter expressions
    while ( t && /^[a-z[({<*:.#]/i.test(t) ) {

      var p = jQuery.parse, m;

      jQuery.each( p, function(i,re){
    
        // Look for, and replace, string-like sequences
        // and finally build a regexp out of it
        m = re.exec( t );

        if ( m ) {
          // Remove what we just matched
          t = t.substring( m[0].length );

          // Re-organize the first match
          if ( jQuery.expr[ m[1] ]._resort )
            m = jQuery.expr[ m[1] ]._resort( m );

          return false;
        }
      });

      // :not() is a special case that can be optimized by
      // keeping it out of the expression list
      if ( m[1] == ":" && m[2] == "not" )
        r = jQuery.filter(m[3], r, true).r;

      // Handle classes as a special case (this will help to
      // improve the speed, as the regexp will only be compiled once)
      else if ( m[1] == "." ) {

        var re = new RegExp("(^|\\s)" + m[2] + "(\\s|$)");
        r = jQuery.grep( r, function(e){
          return re.test(e.className || "");
        }, not);

      // Otherwise, find the expression to execute
      } else {
        var f = jQuery.expr[m[1]];
        if ( typeof f != "string" )
          f = jQuery.expr[m[1]][m[2]];

        // Build a custom macro to enclose it
        eval("f = function(a,i){" +
          ( jQuery.expr[ m[1] ]._prefix || "" ) +
          "return " + f + "}");

        // Execute it against the current filter
        r = jQuery.grep( r, f, not );
      }
    }

    // Return an array of filtered elements (r)
    // and the modified expression string (t)
    return { r: r, t: t };
  },
  
  getAll: function( o, r, token, name, re ) {
    for ( var s = o.firstChild; s; s = s.nextSibling )
      if ( s.nodeType == 1 ) {
        var add = true;

        if ( token == "." )
          add = s.className && re.test(s.className);
        else if ( token == "#" )
          add = s.getAttribute("id") == name;
  
        if ( add )
          r.push( s );

        if ( token == "#" && r.length ) break;

        if ( s.firstChild )
          jQuery.getAll( s, r, token, name, re );
      }

    return r;
  },
  parents: function( elem ){
    var matched = [];
    var cur = elem.parentNode;
    while ( cur && cur != document ) {
      matched.push( cur );
      cur = cur.parentNode;
    }
    return matched;
  },
  nth: function(cur,result,dir,elem){
    result = result || 1;
    var num = 0;
    for ( ; cur; cur = cur[dir] ) {
      if ( cur.nodeType == 1 ) num++;
      if ( num == result || result == "even" && num % 2 == 0 && num > 1 && cur == elem ||
        result == "odd" && num % 2 == 1 && cur == elem ) return cur;
    }
  },
  sibling: function( n, elem ) {
    var r = [];

    for ( ; n; n = n.nextSibling ) {
      if ( n.nodeType == 1 && (!elem || n != elem) )
        r.push( n );
    }

    return r;
  }
});
/*
 * A number of helper functions used for managing events.
 * Many of the ideas behind this code orignated from 
 * Dean Edwards' addEvent library.
 */
jQuery.event = {

  // Bind an event to an element
  // Original by Dean Edwards
  add: function(element, type, handler, data) {
    // For whatever reason, IE has trouble passing the window object
    // around, causing it to be cloned in the process
    if ( jQuery.browser.msie && element.setInterval != undefined )
      element = window;

    // if data is passed, bind to handler
    if( data ) 
      handler.data = data;

    // Make sure that the function being executed has a unique ID
    if ( !handler.guid )
      handler.guid = this.guid++;

    // Init the element's event structure
    if (!element.events)
      element.events = {};

    // Get the current list of functions bound to this event
    var handlers = element.events[type];

    // If it hasn't been initialized yet
    if (!handlers) {
      // Init the event handler queue
      handlers = element.events[type] = {};

      // Remember an existing handler, if it's already there
      if (element["on" + type])
        handlers[0] = element["on" + type];
    }

    // Add the function to the element's handler list
    handlers[handler.guid] = handler;

    // And bind the global event handler to the element
    element["on" + type] = this.handle;

    // Remember the function in a global list (for triggering)
    if (!this.global[type])
      this.global[type] = [];
    this.global[type].push( element );
  },

  guid: 1,
  global: {},

  // Detach an event or set of events from an element
  remove: function(element, type, handler) {
    if (element.events)
      if ( type && type.type )
        delete element.events[ type.type ][ type.handler.guid ];
      else if (type && element.events[type])
        if ( handler )
          delete element.events[type][handler.guid];
        else
          for ( var i in element.events[type] )
            delete element.events[type][i];
      else
        for ( var j in element.events )
          this.remove( element, j );
  },

  trigger: function(type,data,element) {
    // Clone the incoming data, if any
    data = jQuery.makeArray(data || []);

    // Handle a global trigger
    if ( !element )
      jQuery.each( this.global[type] || [], function(){
        jQuery.event.trigger( type, data, this );
      });

    // Handle triggering a single element
    else {
      var handler = element["on" + type ], val,
        fn = jQuery.isFunction( element[ type ] );

      if ( handler ) {
        // Pass along a fake event
        data.unshift( this.fix({ type: type, target: element }) );
  
        // Trigger the event
        if ( (val = handler.apply( element, data )) !== false )
          this.triggered = true;
      }

      if ( fn && val !== false )
        element[ type ]();

      this.triggered = false;
    }
  },

  handle: function(event) {
    // Handle the second event of a trigger and when
    // an event is called after a page has unloaded
    if ( typeof jQuery == "undefined" || jQuery.event.triggered ) return;

    // Empty object is for triggered events with no data
    event = jQuery.event.fix( event || window.event || {} ); 

    // returned undefined or false
    var returnValue;

    var c = this.events[event.type];

    var args = [].slice.call( arguments, 1 );
    args.unshift( event );

    for ( var j in c ) {
      // Pass in a reference to the handler function itself
      // So that we can later remove it
      args[0].handler = c[j];
      args[0].data = c[j].data;

      if ( c[j].apply( this, args ) === false ) {
        event.preventDefault();
        event.stopPropagation();
        returnValue = false;
      }
    }

    // Clean up added properties in IE to prevent memory leak
    if (jQuery.browser.msie) event.target = event.preventDefault = event.stopPropagation = event.handler = event.data = null;

    return returnValue;
  },

  fix: function(event) {
    // Fix target property, if necessary
    if ( !event.target && event.srcElement )
      event.target = event.srcElement;

    // Calculate pageX/Y if missing and clientX/Y available
    if ( event.pageX == undefined && event.clientX != undefined ) {
      var e = document.documentElement, b = document.body;
      event.pageX = event.clientX + (e.scrollLeft || b.scrollLeft);
      event.pageY = event.clientY + (e.scrollTop || b.scrollTop);
    }
        
    // check if target is a textnode (safari)
    if (jQuery.browser.safari && event.target.nodeType == 3) {
      // store a copy of the original event object 
      // and clone because target is read only
      var originalEvent = event;
      event = jQuery.extend({}, originalEvent);
      
      // get parentnode from textnode
      event.target = originalEvent.target.parentNode;
      
      // add preventDefault and stopPropagation since 
      // they will not work on the clone
      event.preventDefault = function() {
        return originalEvent.preventDefault();
      };
      event.stopPropagation = function() {
        return originalEvent.stopPropagation();
      };
    }
    
    // fix preventDefault and stopPropagation
    if (!event.preventDefault)
      event.preventDefault = function() {
        this.returnValue = false;
      };
      
    if (!event.stopPropagation)
      event.stopPropagation = function() {
        this.cancelBubble = true;
      };
      
    return event;
  }
};

jQuery.fn.extend({
  bind: function( type, data, fn ) {
    return this.each(function(){
      jQuery.event.add( this, type, fn || data, data );
    });
  },
  one: function( type, data, fn ) {
    return this.each(function(){
      jQuery.event.add( this, type, function(event) {
        jQuery(this).unbind(event);
        return (fn || data).apply( this, arguments);
      }, data);
    });
  },
  unbind: function( type, fn ) {
    return this.each(function(){
      jQuery.event.remove( this, type, fn );
    });
  },
  trigger: function( type, data ) {
    return this.each(function(){
      jQuery.event.trigger( type, data, this );
    });
  },
  toggle: function() {
    // Save reference to arguments for access in closure
    var a = arguments;

    return this.click(function(e) {
      // Figure out which function to execute
      this.lastToggle = this.lastToggle == 0 ? 1 : 0;
      
      // Make sure that clicks stop
      e.preventDefault();
      
      // and execute the function
      return a[this.lastToggle].apply( this, [e] ) || false;
    });
  },
  hover: function(f,g) {
    
    // A private function for handling mouse 'hovering'
    function handleHover(e) {
      // Check if mouse(over|out) are still within the same parent element
      var p = (e.type == "mouseover" ? e.fromElement : e.toElement) || e.relatedTarget;
  
      // Traverse up the tree
      while ( p && p != this ) try { p = p.parentNode } catch(e) { p = this; };
      
      // If we actually just moused on to a sub-element, ignore it
      if ( p == this ) return false;
      
      // Execute the right function
      return (e.type == "mouseover" ? f : g).apply(this, [e]);
    }
    
    // Bind the function to the two event listeners
    return this.mouseover(handleHover).mouseout(handleHover);
  },
  ready: function(f) {
    // If the DOM is already ready
    if ( jQuery.isReady )
      // Execute the function immediately
      f.apply( document, [jQuery] );
      
    // Otherwise, remember the function for later
    else {
      // Add the function to the wait list
      jQuery.readyList.push( function() { return f.apply(this, [jQuery]) } );
    }
  
    return this;
  }
});

jQuery.extend({
  /*
   * All the code that makes DOM Ready work nicely.
   */
  isReady: false,
  readyList: [],
  
  // Handle when the DOM is ready
  ready: function() {
    // Make sure that the DOM is not already loaded
    if ( !jQuery.isReady ) {
      // Remember that the DOM is ready
      jQuery.isReady = true;
      
      // If there are functions bound, to execute
      if ( jQuery.readyList ) {
        // Execute all of them
        jQuery.each( jQuery.readyList, function(){
          this.apply( document );
        });
        
        // Reset the list of functions
        jQuery.readyList = null;
      }
      // Remove event lisenter to avoid memory leak
      if ( jQuery.browser.mozilla || jQuery.browser.opera )
        document.removeEventListener( "DOMContentLoaded", jQuery.ready, false );
    }
  }
});

new function(){

  jQuery.each( ("blur,focus,load,resize,scroll,unload,click,dblclick," +
    "mousedown,mouseup,mousemove,mouseover,mouseout,change,select," + 
    "submit,keydown,keypress,keyup,error").split(","), function(i,o){
    
    // Handle event binding
    jQuery.fn[o] = function(f){
      return f ? this.bind(o, f) : this.trigger(o);
    };
      
  });
  
  // If Mozilla is used
  if ( jQuery.browser.mozilla || jQuery.browser.opera )
    // Use the handy event callback
    document.addEventListener( "DOMContentLoaded", jQuery.ready, false );
  
  // If IE is used, use the excellent hack by Matthias Miller
  // http://www.outofhanwell.com/blog/index.php?title=the_window_onload_problem_revisited
  else if ( jQuery.browser.msie ) {
  
    // Only works if you document.write() it
    document.write("<scr" + "ipt id=__ie_init defer=true " + 
      "src=//:><\/script>");
  
    // Use the defer script hack
    var script = document.getElementById("__ie_init");
    
    // script does not exist if jQuery is loaded dynamically
    if ( script ) 
      script.onreadystatechange = function() {
        if ( this.readyState != "complete" ) return;
        this.parentNode.removeChild( this );
        jQuery.ready();
      };
  
    // Clear from memory
    script = null;
  
  // If Safari  is used
  } else if ( jQuery.browser.safari )
    // Continually check to see if the document.readyState is valid
    jQuery.safariTimer = setInterval(function(){
      // loaded and complete are both valid states
      if ( document.readyState == "loaded" || 
        document.readyState == "complete" ) {
  
        // If either one are found, remove the timer
        clearInterval( jQuery.safariTimer );
        jQuery.safariTimer = null;
  
        // and execute any waiting functions
        jQuery.ready();
      }
    }, 10); 

  // A fallback to window.onload, that will always work
  jQuery.event.add( window, "load", jQuery.ready );
  
};

// Clean up after IE to avoid memory leaks
if (jQuery.browser.msie)
  jQuery(window).one("unload", function() {
    var global = jQuery.event.global;
    for ( var type in global ) {
      var els = global[type], i = els.length;
      if ( i && type != 'unload' )
        do
          jQuery.event.remove(els[i-1], type);
        while (--i);
    }
  });
jQuery.fn.extend({

  show: function(speed,callback){
    var hidden = this.filter(":hidden");
    speed ?
      hidden.animate({
        height: "show", width: "show", opacity: "show"
      }, speed, callback) :
      
      hidden.each(function(){
        this.style.display = this.oldblock ? this.oldblock : "";
        if ( jQuery.css(this,"display") == "none" )
          this.style.display = "block";
      });
    return this;
  },

  hide: function(speed,callback){
    var visible = this.filter(":visible");
    speed ?
      visible.animate({
        height: "hide", width: "hide", opacity: "hide"
      }, speed, callback) :
      
      visible.each(function(){
        this.oldblock = this.oldblock || jQuery.css(this,"display");
        if ( this.oldblock == "none" )
          this.oldblock = "block";
        this.style.display = "none";
      });
    return this;
  },

  // Save the old toggle function
  _toggle: jQuery.fn.toggle,
  toggle: function( fn, fn2 ){
    var args = arguments;
    return jQuery.isFunction(fn) && jQuery.isFunction(fn2) ?
      this._toggle( fn, fn2 ) :
      this.each(function(){
        jQuery(this)[ jQuery(this).is(":hidden") ? "show" : "hide" ]
          .apply( jQuery(this), args );
      });
  },
  slideDown: function(speed,callback){
    return this.animate({height: "show"}, speed, callback);
  },
  slideUp: function(speed,callback){
    return this.animate({height: "hide"}, speed, callback);
  },
  slideToggle: function(speed, callback){
    return this.each(function(){
      var state = jQuery(this).is(":hidden") ? "show" : "hide";
      jQuery(this).animate({height: state}, speed, callback);
    });
  },
  fadeIn: function(speed, callback){
    return this.animate({opacity: "show"}, speed, callback);
  },
  fadeOut: function(speed, callback){
    return this.animate({opacity: "hide"}, speed, callback);
  },
  fadeTo: function(speed,to,callback){
    return this.animate({opacity: to}, speed, callback);
  },
  animate: function( prop, speed, easing, callback ) {
    return this.queue(function(){
    
      this.curAnim = jQuery.extend({}, prop);
      var opt = jQuery.speed(speed, easing, callback);
      
      for ( var p in prop ) {
        var e = new jQuery.fx( this, opt, p );
        if ( prop[p].constructor == Number )
          e.custom( e.cur(), prop[p] );
        else
          e[ prop[p] ]( prop );
      }
      
    });
  },
  queue: function(type,fn){
    if ( !fn ) {
      fn = type;
      type = "fx";
    }
  
    return this.each(function(){
      if ( !this.queue )
        this.queue = {};
  
      if ( !this.queue[type] )
        this.queue[type] = [];
  
      this.queue[type].push( fn );
    
      if ( this.queue[type].length == 1 )
        fn.apply(this);
    });
  }

});

jQuery.extend({
  
  speed: function(speed, easing, fn) {
    var opt = speed && speed.constructor == Object ? speed : {
      complete: fn || !fn && easing || 
        jQuery.isFunction( speed ) && speed,
      duration: speed,
      easing: fn && easing || easing && easing.constructor != Function && easing
    };

    opt.duration = (opt.duration && opt.duration.constructor == Number ? 
      opt.duration : 
      { slow: 600, fast: 200 }[opt.duration]) || 400;
  
    // Queueing
    opt.old = opt.complete;
    opt.complete = function(){
      jQuery.dequeue(this, "fx");
      if ( jQuery.isFunction( opt.old ) )
        opt.old.apply( this );
    };
  
    return opt;
  },
  
  easing: {},
  
  queue: {},
  
  dequeue: function(elem,type){
    type = type || "fx";
  
    if ( elem.queue && elem.queue[type] ) {
      // Remove self
      elem.queue[type].shift();
  
      // Get next function
      var f = elem.queue[type][0];
    
      if ( f ) f.apply( elem );
    }
  },

  /*
   * I originally wrote fx() as a clone of moo.fx and in the process
   * of making it small in size the code became illegible to sane
   * people. You've been warned.
   */
  
  fx: function( elem, options, prop ){

    var z = this;

    // The styles
    var y = elem.style;
    
    // Store display property
    var oldDisplay = jQuery.css(elem, "display");

    // Set display property to block for animation
    y.display = "block";

    // Make sure that nothing sneaks out
    y.overflow = "hidden";

    // Simple function for setting a style value
    z.a = function(){
      if ( options.step )
        options.step.apply( elem, [ z.now ] );

      if ( prop == "opacity" )
        jQuery.attr(y, "opacity", z.now); // Let attr handle opacity
      else if ( parseInt(z.now) ) // My hate for IE will never die
        y[prop] = parseInt(z.now) + "px";
    };

    // Figure out the maximum number to run to
    z.max = function(){
      return parseFloat( jQuery.css(elem,prop) );
    };

    // Get the current size
    z.cur = function(){
      var r = parseFloat( jQuery.curCSS(elem, prop) );
      return r && r > -10000 ? r : z.max();
    };

    // Start an animation from one number to another
    z.custom = function(from,to){
      z.startTime = (new Date()).getTime();
      z.now = from;
      z.a();

      z.timer = setInterval(function(){
        z.step(from, to);
      }, 13);
    };

    // Simple 'show' function
    z.show = function(){
      if ( !elem.orig ) elem.orig = {};

      // Remember where we started, so that we can go back to it later
      elem.orig[prop] = this.cur();

      options.show = true;

      // Begin the animation
      z.custom(0, elem.orig[prop]);

      // Stupid IE, look what you made me do
      if ( prop != "opacity" )
        y[prop] = "1px";
    };

    // Simple 'hide' function
    z.hide = function(){
      if ( !elem.orig ) elem.orig = {};

      // Remember where we started, so that we can go back to it later
      elem.orig[prop] = this.cur();

      options.hide = true;

      // Begin the animation
      z.custom(elem.orig[prop], 0);
    };
    
    //Simple 'toggle' function
    z.toggle = function() {
      if ( !elem.orig ) elem.orig = {};

      // Remember where we started, so that we can go back to it later
      elem.orig[prop] = this.cur();

      if(oldDisplay == "none")  {
        options.show = true;
        
        // Stupid IE, look what you made me do
        if ( prop != "opacity" )
          y[prop] = "1px";

        // Begin the animation
        z.custom(0, elem.orig[prop]);  
      } else {
        options.hide = true;

        // Begin the animation
        z.custom(elem.orig[prop], 0);
      }    
    };

    // Each step of an animation
    z.step = function(firstNum, lastNum){
      var t = (new Date()).getTime();

      if (t > options.duration + z.startTime) {
        // Stop the timer
        clearInterval(z.timer);
        z.timer = null;

        z.now = lastNum;
        z.a();

        if (elem.curAnim) elem.curAnim[ prop ] = true;

        var done = true;
        for ( var i in elem.curAnim )
          if ( elem.curAnim[i] !== true )
            done = false;

        if ( done ) {
          // Reset the overflow
          y.overflow = "";
          
          // Reset the display
          y.display = oldDisplay;
          if (jQuery.css(elem, "display") == "none")
            y.display = "block";

          // Hide the element if the "hide" operation was done
          if ( options.hide ) 
            y.display = "none";

          // Reset the properties, if the item has been hidden or shown
          if ( options.hide || options.show )
            for ( var p in elem.curAnim )
              if (p == "opacity")
                jQuery.attr(y, p, elem.orig[p]);
              else
                y[p] = "";
        }

        // If a callback was provided, execute it
        if ( done && jQuery.isFunction( options.complete ) )
          // Execute the complete function
          options.complete.apply( elem );
      } else {
        var n = t - this.startTime;
        // Figure out where in the animation we are and set the number
        var p = n / options.duration;
        
        // If the easing function exists, then use it 
        z.now = options.easing && jQuery.easing[options.easing] ?
          jQuery.easing[options.easing](p, n,  firstNum, (lastNum-firstNum), options.duration) :
          // else use default linear easing
          ((-Math.cos(p*Math.PI)/2) + 0.5) * (lastNum-firstNum) + firstNum;

        // Perform the next step of the animation
        z.a();
      }
    };
  
  }
});
jQuery.fn.extend({
  loadIfModified: function( url, params, callback ) {
    this.load( url, params, callback, 1 );
  },
  load: function( url, params, callback, ifModified ) {
    if ( jQuery.isFunction( url ) )
      return this.bind("load", url);

    callback = callback || function(){};

    // Default to a GET request
    var type = "GET";

    // If the second parameter was provided
    if ( params )
      // If it's a function
      if ( jQuery.isFunction( params ) ) {
        // We assume that it's the callback
        callback = params;
        params = null;

      // Otherwise, build a param string
      } else {
        params = jQuery.param( params );
        type = "POST";
      }

    var self = this;

    // Request the remote document
    jQuery.ajax({
      url: url,
      type: type,
      data: params,
      ifModified: ifModified,
      complete: function(res, status){
        if ( status == "success" || !ifModified && status == "notmodified" )
          // Inject the HTML into all the matched elements
          self.attr("innerHTML", res.responseText)
            // Execute all the scripts inside of the newly-injected HTML
            .evalScripts()
            // Execute callback
            .each( callback, [res.responseText, status, res] );
        else
          callback.apply( self, [res.responseText, status, res] );
      }
    });
    return this;
  },
  serialize: function() {
    return jQuery.param( this );
  },
  evalScripts: function() {
    return this.find("script").each(function(){
      if ( this.src )
        jQuery.getScript( this.src );
      else
        jQuery.globalEval( this.text || this.textContent || this.innerHTML || "" );
    }).end();
  }

});

// If IE is used, create a wrapper for the XMLHttpRequest object
if ( !window.XMLHttpRequest )
  XMLHttpRequest = function(){
    return new ActiveXObject("Microsoft.XMLHTTP");
  };

// Attach a bunch of functions for handling common AJAX events

jQuery.each( "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess,ajaxSend".split(","), function(i,o){
  jQuery.fn[o] = function(f){
    return this.bind(o, f);
  };
});

jQuery.extend({
  get: function( url, data, callback, type, ifModified ) {
    // shift arguments if data argument was ommited
    if ( jQuery.isFunction( data ) ) {
      callback = data;
      data = null;
    }
    
    return jQuery.ajax({
      url: url,
      data: data,
      success: callback,
      dataType: type,
      ifModified: ifModified
    });
  },
  getIfModified: function( url, data, callback, type ) {
    return jQuery.get(url, data, callback, type, 1);
  },
  getScript: function( url, callback ) {
    return jQuery.get(url, null, callback, "script");
  },
  getJSON: function( url, data, callback ) {
    return jQuery.get(url, data, callback, "json");
  },
  post: function( url, data, callback, type ) {
    if ( jQuery.isFunction( data ) ) {
      callback = data;
      data = {};
    }

    return jQuery.ajax({
      type: "POST",
      url: url,
      data: data,
      success: callback,
      dataType: type
    });
  },

  // timeout (ms)
  //timeout: 0,
  ajaxTimeout: function( timeout ) {
    jQuery.ajaxSettings.timeout = timeout;
  },
  ajaxSetup: function( settings ) {
    jQuery.extend( jQuery.ajaxSettings, settings );
  },

  ajaxSettings: {
    global: true,
    type: "GET",
    timeout: 0,
    contentType: "application/x-www-form-urlencoded",
    processData: true,
    async: true,
    data: null
  },
  
  // Last-Modified header cache for next request
  lastModified: {},
  ajax: function( s ) {
    // TODO introduce global settings, allowing the client to modify them for all requests, not only timeout
    s = jQuery.extend({}, jQuery.ajaxSettings, s);

    // if data available
    if ( s.data ) {
      // convert data if not already a string
      if (s.processData && typeof s.data != "string")
          s.data = jQuery.param(s.data);
      // append data to url for get requests
      if( s.type.toLowerCase() == "get" )
        // "?" + data or "&" + data (in case there are already params)
        s.url += ((s.url.indexOf("?") > -1) ? "&" : "?") + s.data;
    }

    // Watch for a new set of requests
    if ( s.global && ! jQuery.active++ )
      jQuery.event.trigger( "ajaxStart" );

    var requestDone = false;

    // Create the request object
    var xml = new XMLHttpRequest();

    // Open the socket
    xml.open(s.type, s.url, s.async);

    // Set the correct header, if data is being sent
    if ( s.data )
      xml.setRequestHeader("Content-Type", s.contentType);

    // Set the If-Modified-Since header, if ifModified mode.
    if ( s.ifModified )
      xml.setRequestHeader("If-Modified-Since",
        jQuery.lastModified[s.url] || "Thu, 01 Jan 1970 00:00:00 GMT" );

    // Set header so the called script knows that it's an XMLHttpRequest
    xml.setRequestHeader("X-Requested-With", "XMLHttpRequest");

    // Make sure the browser sends the right content length
    if ( xml.overrideMimeType )
      xml.setRequestHeader("Connection", "close");
      
    // Allow custom headers/mimetypes
    if( s.beforeSend )
      s.beforeSend(xml);
      
    if ( s.global )
        jQuery.event.trigger("ajaxSend", [xml, s]);

    // Wait for a response to come back
    var onreadystatechange = function(isTimeout){
      // The transfer is complete and the data is available, or the request timed out
      if ( xml && (xml.readyState == 4 || isTimeout == "timeout") ) {
        requestDone = true;
        var status;
        try {
          status = jQuery.httpSuccess( xml ) && isTimeout != "timeout" ?
            s.ifModified && jQuery.httpNotModified( xml, s.url ) ? "notmodified" : "success" : "error";
          // Make sure that the request was successful or notmodified
          if ( status != "error" ) {
            // Cache Last-Modified header, if ifModified mode.
            var modRes;
            try {
              modRes = xml.getResponseHeader("Last-Modified");
            } catch(e) {} // swallow exception thrown by FF if header is not available
  
            if ( s.ifModified && modRes )
              jQuery.lastModified[s.url] = modRes;
  
            // process the data (runs the xml through httpData regardless of callback)
            var data = jQuery.httpData( xml, s.dataType );
  
            // If a local callback was specified, fire it and pass it the data
            if ( s.success )
              s.success( data, status );
  
            // Fire the global callback
            if( s.global )
              jQuery.event.trigger( "ajaxSuccess", [xml, s] );
          } else
            jQuery.handleError(s, xml, status);
        } catch(e) {
          status = "error";
          jQuery.handleError(s, xml, status, e);
        }

        // The request was completed
        if( s.global )
          jQuery.event.trigger( "ajaxComplete", [xml, s] );

        // Handle the global AJAX counter
        if ( s.global && ! --jQuery.active )
          jQuery.event.trigger( "ajaxStop" );

        // Process result
        if ( s.complete )
          s.complete(xml, status);

        // Stop memory leaks
        xml.onreadystatechange = function(){};
        xml = null;
      }
    };
    xml.onreadystatechange = onreadystatechange;

    // Timeout checker
    if ( s.timeout > 0 )
      setTimeout(function(){
        // Check to see if the request is still happening
        if ( xml ) {
          // Cancel the request
          xml.abort();

          if( !requestDone )
            onreadystatechange( "timeout" );
        }
      }, s.timeout);
      
    // save non-leaking reference 
    var xml2 = xml;

    // Send the data
    try {
      xml2.send(s.data);
    } catch(e) {
      jQuery.handleError(s, xml, null, e);
    }
    
    // firefox 1.5 doesn't fire statechange for sync requests
    if ( !s.async )
      onreadystatechange();
    
    // return XMLHttpRequest to allow aborting the request etc.
    return xml2;
  },

  handleError: function( s, xml, status, e ) {
    // If a local callback was specified, fire it
    if ( s.error ) s.error( xml, status, e );

    // Fire the global callback
    if ( s.global )
      jQuery.event.trigger( "ajaxError", [xml, s, e] );
  },

  // Counter for holding the number of active queries
  active: 0,

  // Determines if an XMLHttpRequest was successful or not
  httpSuccess: function( r ) {
    try {
      return !r.status && location.protocol == "file:" ||
        ( r.status >= 200 && r.status < 300 ) || r.status == 304 ||
        jQuery.browser.safari && r.status == undefined;
    } catch(e){}
    return false;
  },

  // Determines if an XMLHttpRequest returns NotModified
  httpNotModified: function( xml, url ) {
    try {
      var xmlRes = xml.getResponseHeader("Last-Modified");

      // Firefox always returns 200. check Last-Modified date
      return xml.status == 304 || xmlRes == jQuery.lastModified[url] ||
        jQuery.browser.safari && xml.status == undefined;
    } catch(e){}
    return false;
  },

  /* Get the data out of an XMLHttpRequest.
   * Return parsed XML if content-type header is "xml" and type is "xml" or omitted,
   * otherwise return plain text.
   * (String) data - The type of data that you're expecting back,
   * (e.g. "xml", "html", "script")
   */
  httpData: function( r, type ) {
    var ct = r.getResponseHeader("content-type");
    var data = !type && ct && ct.indexOf("xml") >= 0;
    data = type == "xml" || data ? r.responseXML : r.responseText;

    // If the type is "script", eval it in global context
    if ( type == "script" )
      jQuery.globalEval( data );

    // Get the JavaScript object, if JSON is used.
    if ( type == "json" )
      eval( "data = " + data );

    // evaluate scripts within html
    if ( type == "html" )
      jQuery("<div>").html(data).evalScripts();

    return data;
  },

  // Serialize an array of form elements or a set of
  // key/values into a query string
  param: function( a ) {
    var s = [];

    // If an array was passed in, assume that it is an array
    // of form elements
    if ( a.constructor == Array || a.jquery )
      // Serialize the form elements
      jQuery.each( a, function(){
        s.push( encodeURIComponent(this.name) + "=" + encodeURIComponent( this.value ) );
      });

    // Otherwise, assume that it's an object of key/value pairs
    else
      // Serialize the key/values
      for ( var j in a )
        // If the value is an array then the key names need to be repeated
        if ( a[j] && a[j].constructor == Array )
          jQuery.each( a[j], function(){
            s.push( encodeURIComponent(j) + "=" + encodeURIComponent( this ) );
          });
        else
          s.push( encodeURIComponent(j) + "=" + encodeURIComponent( a[j] ) );

    // Return the resulting serialization
    return s.join("&");
  },
  
  // evalulates a script in global context
  // not reliable for safari
  globalEval: function( data ) {
    if ( window.execScript )
      window.execScript( data );
    else if ( jQuery.browser.safari )
      // safari doesn't provide a synchronous global eval
      window.setTimeout( data, 0 );
    else
      eval.call( window, data );
  }

});
}