/*
 * jNice
 * version: 1.0 (11.26.08)
 * by Sean Mooney (sean@whitespace-creative.com) 
 * Examples at: http://www.whitespace-creative.com/jquery/jnice/
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 * To Use: place in the head 
 *  <link href="inc/style/jNice.css" rel="stylesheet" type="text/css" />
 *  <script type="text/javascript" src="inc/js/jquery.jNice.js"></script>
 *
 * And apply the jNice class to the form you want to style
 *
 * To Do: Add textareas, Add File upload
 *
 ******************************************** */
(function($){
$.fn.jNice = function(options){
var self = this;
var safari = $.browser.safari; /* We need to check for safari to fix the input:text problem */
/* Apply document listener */
$(document).mousedown(checkExternalClick);
/* each form */
return this.each(function(){
$('input:submit, input:reset, input:button', this).each(ButtonAdd);
$('button').focus(function(){ $(this).addClass('jNiceFocus')}).blur(function(){ $(this).removeClass('jNiceFocus')});
$('input:text:visible, input:password', this).each(TextAdd);
/* If this is safari we need to add an extra class */
if (safari){$('.jNiceInputWrapper').each(function(){$(this).addClass('jNiceSafari').find('input').css('width', $(this).width()+11);});}
$('input:checkbox', this).each(CheckAdd);
$('input:radio', this).each(RadioAdd);
$('select', this).each(function(index){ SelectAdd(this, index); });
/* Add a new handler for the reset action */
$(this).bind('reset',function(){var action = function(){ Reset(this); }; window.setTimeout(action, 10); });
$('.jNiceHidden').css({opacity:0});
}); 
};/* End the Plugin */

var Reset = function(form){
var sel;
$('.jNiceSelectWrapper select', form).each(function(){sel = (this.selectedIndex<0) ? 0 : this.selectedIndex; $('ul', $(this).parent()).each(function(){$('a:eq('+ sel +')', this).click();});});
$('a.jNiceCheckbox, a.jNiceRadio', form).removeClass('jNiceChecked');
$('input:checkbox, input:radio', form).each(function(){if(this.checked){$('a', $(this).parent()).addClass('jNiceChecked');}});
};

var RadioAdd = function(){
var $input = $(this).addClass('jNiceHidden').wrap('<span class="jRadioWrapper jNiceWrapper"></span>');
var $wrapper = $input.parent();
var $a = $('<span class="jNiceRadio"></span>');
$wrapper.prepend($a);
/* Click Handler */
$a.click(function(){
var $input = $(this).addClass('jNiceChecked').siblings('input').attr('checked',true);
/* uncheck all others of same name */
$('input:radio[name="'+ $input.attr('name') +'"]').not($input).each(function(){
$(this).attr('checked',false).siblings('.jNiceRadio').removeClass('jNiceChecked');
});
return false;
});
$input.click(function(){
if(this.checked){
var $input = $(this).siblings('.jNiceRadio').addClass('jNiceChecked').end();
/* uncheck all others of same name */
$('input:radio[name="'+ $input.attr('name') +'"]').not($input).each(function(){
$(this).attr('checked',false).siblings('.jNiceRadio').removeClass('jNiceChecked');
});
}
}).focus(function(){ $a.addClass('jNiceFocus'); }).blur(function(){ $a.removeClass('jNiceFocus'); });

/* set the default state */
if (this.checked){ $a.addClass('jNiceChecked'); }
};

var CheckAdd = function(){
var $input = $(this).addClass('jNiceHidden').wrap('<span class="jNiceWrapper"></span>');
var $wrapper = $input.parent().append('<span class="jNiceCheckbox"></span>');
/* Click Handler */
var $a = $wrapper.find('.jNiceCheckbox').click(function(){
var $a = $(this);
var input = $a.siblings('input')[0];
if (input.checked===true){
input.checked = false;
$a.removeClass('jNiceChecked');
}
else {
input.checked = true;
$a.addClass('jNiceChecked');
}
return false;
});
$input.click(function(){
if(this.checked){ $a.addClass('jNiceChecked');  }
else { $a.removeClass('jNiceChecked'); }
}).focus(function(){ $a.addClass('jNiceFocus'); }).blur(function(){ $a.removeClass('jNiceFocus'); });

/* set the default state */
if (this.checked){$('.jNiceCheckbox', $wrapper).addClass('jNiceChecked');}
};

var TextAdd = function(){
var $input = $(this).addClass('jNiceInput').wrap('<div class="jNiceInputWrapper"><div class="jNiceInputInner"></div></div>');
var $wrapper = $input.parents('.jNiceInputWrapper');
$input.focus(function(){ 
$wrapper.addClass('jNiceInputWrapper_hover');
}).blur(function(){
$wrapper.removeClass('jNiceInputWrapper_hover');
});
};

var ButtonAdd = function(){
var value = $(this).attr('value');
$(this).replaceWith('<button id="'+ this.id +'" name="'+ this.name +'" type="'+ this.type +'" class="'+ this.className +'" value="'+ value +'"><span><span>'+ value +'</span></span>');
};

/* Hide all open selects */
var SelectHide = function(){
$('.jNiceSelectWrapper ul:visible').hide().parent().find('div.open').removeClass('open'); 
};

/* Check for an external click */
var checkExternalClick = function(event) {
if ($(event.target).parents('.jNiceSelectWrapper').length === 0) { SelectHide(); }
};

var SelectAdd = function(element, index){
var $select = $(element);
index = index || $select.css('zIndex')*1;
index = (index) ? index : 0;
/* First thing we do is Wrap it */
$select.wrap($('<div class="jNiceWrapper"></div>').css({zIndex: 100-index}));
var width = $select.width();
$select.addClass('jNiceHidden').after('<div class="jNiceSelectWrapper"><div><span class="jNiceSelectText"></span><span id="jNiceSelectOpen" class="jNiceSelectOpen"></span></div><ul></ul></div>');
var $wrapper = $(element).siblings('.jNiceSelectWrapper').css({width: width +'px'});
$('.jNiceSelectText, .jNiceSelectWrapper ul', $wrapper).width( width - $('.jNiceSelectOpen', $wrapper).width());
/* IF IE 6 */
if ($.browser.msie && jQuery.browser.version < 7) {
$select.after($('<iframe src="javascript:\'\';" marginwidth="0" marginheight="0" align="bottom" scrolling="no" tabIndex="-1" frameborder="0"></iframe>').css({ height: $select.height()+4 +'px' }));
}
/* Now we add the options */
SelectUpdate(element);
/* Apply the click handler to the Open */
$('div', $wrapper).click(function(){
var $ul = $(this).siblings('ul');
if ($ul.css('display')=='none'){ 
SelectHide();

} /* Check if box is already open to still allow toggle, but close all other selects */
$ul.siblings('div').toggleClass('open');   
$ul.slideToggle();
var offSet = ($('a.selected', $ul).offset().top - $ul.offset().top);
$ul.animate({scrollTop: offSet});
return false;
});
/* Add the key listener */
$select.keydown(function(e){
var selectedIndex = this.selectedIndex;
switch(e.keyCode){
case 40: /* Down */
if (selectedIndex < this.options.length - 1){ selectedIndex+=1; }
break;
case 38: /* Up */
if (selectedIndex > 0){ selectedIndex-=1; }
break;
default:
return;
break;
}
$('ul a', $wrapper).removeClass('selected').eq(selectedIndex).addClass('selected');
$('span:eq(0)', $wrapper).html($('option:eq('+ selectedIndex +')', $select).attr('selected', 'selected').text());
return false;
}).focus(function(){ $wrapper.addClass('jNiceFocus'); }).blur(function(){ $wrapper.removeClass('jNiceFocus'); });
};

var SelectUpdate = function(element){
var $select = $(element);
var $wrapper = $select.siblings('.jNiceSelectWrapper');
var $ul = $wrapper.find('ul').find('li').remove().end().hide();
$('option', $select).each(function(i){
$ul.append('<li><a href="#" index="'+ i +'">'+ this.text +'</a></li>');
});
/* Add click handler to the a */
$ul.find('a').click(function(){
$('a.selected', $wrapper).removeClass('selected').parent().removeClass('selected');
$(this).addClass('selected').parent().addClass('selected'); 
/* Fire the onchange event */
if ($select[0].selectedIndex != $(this).attr('index')) { $select[0].selectedIndex = $(this).attr('index'); $select.trigger('change'); }
$select[0].selectedIndex = $(this).attr('index');
$('span:eq(0)', $wrapper).html($(this).html());
$ul.hide().parent().find('div.open').removeClass('open');
return false;
});
/* Set the defalut */
$('a:eq('+ $select[0].selectedIndex +')', $ul).click();
};

var SelectRemove = function(element){
var zIndex = $(element).siblings('.jNiceSelectWrapper').css('zIndex');
$(element).css({zIndex: zIndex}).removeClass('jNiceHidden');
$(element).siblings('.jNiceSelectWrapper').remove();
};

/* Utilities */
$.jNice = {
SelectAdd : function(element, index){  SelectAdd(element, index); },
SelectRemove : function(element){ SelectRemove(element); },
SelectUpdate : function(element){ SelectUpdate(element); }
};/* End Utilities */

/* Automatically apply to any forms with class jNice */
$(function(){$('form.jNice').jNice(); });
})(jQuery);


/*!
 * jQuery BBQ: Back Button & Query Library - v1.0.2 - 10/10/2009
 * http://benalman.com/projects/jquery-bbq-plugin/
 * 
 * Copyright (c) 2009 "Cowboy" Ben Alman
 * Licensed under the MIT license
 * http://benalman.com/about/license/
 */

// Script: jQuery BBQ: Back Button & Query Library
//
// *Version: 1.0.2, Last updated: 10/10/2009*
// 
// Project Home - http://benalman.com/projects/jquery-bbq-plugin/
// GitHub       - http://github.com/cowboy/jquery-bbq/
// Source       - http://github.com/cowboy/jquery-bbq/raw/master/jquery.ba-bbq.js
// (Minified)   - http://github.com/cowboy/jquery-bbq/raw/master/jquery.ba-bbq.min.js (3.1kb)
// 
// About: License
// 
// Copyright (c) 2009 "Cowboy" Ben Alman,
// Licensed under the MIT license.
// http://benalman.com/about/license/
// 
// About: Examples
// 
// These working examples, complete with fully commented code, illustrate a few
// ways in which this plugin can be used.
// 
// Basic AJAX     - http://benalman.com/code/projects/jquery-bbq/examples/fragment-basic/
// Advanced AJAX  - http://benalman.com/code/projects/jquery-bbq/examples/fragment-advanced/
// jQuery UI Tabs - http://benalman.com/code/projects/jquery-bbq/examples/fragment-jquery-ui-tabs/
// Deparam        - http://benalman.com/code/projects/jquery-bbq/examples/deparam/
// 
// About: Support and Testing
// 
// Information about what version or versions of jQuery this plugin has been
// tested with, what browsers it has been tested in, and where the unit tests
// reside (so you can test it yourself).
// 
// jQuery Versions - 1.3.2, 1.4pre
// Browsers Tested - Internet Explorer 6-8, Firefox 2-3.7, Safari 3-4, Chrome, Opera 9.6-10.
// Unit Tests      - http://benalman.com/code/projects/jquery-bbq/unit/
// 
// About: Release History
// 
// 1.0.2 - (10/10/2009) Fixed an issue in IE 6/7 where the hidden IFRAME caused
//         a "This page contains both secure and nonsecure items." warning when
//         used on an https:// page.
// 1.0.1 - (10/7/2009) Fixed an issue in IE 8. Since both "IE7" and "IE8
//         Compatibility View" modes erroneously report that the browser
//         supports the native window.onhashchange event, a slightly more
//         robust test needed to be added.
// 1.0   - (10/2/2009) Initial release

(function($,window){
  '$:nomunge'; // Used by YUI compressor.
  
  // Some convenient shortcuts.
  var undefined,
    loc = document.location,
    aps = Array.prototype.slice,
    decode = decodeURIComponent,
    
    // Method references.
    jq_param = $.param,
    jq_param_fragment,
    jq_deparam,
    jq_deparam_fragment,
    jq_bbq = $.bbq = $.bbq || {},
    jq_bbq_pushState,
    jq_elemUrlAttr,
    fake_onhashchange,
    
    // Reused strings.
    str_hashchange = 'hashchange',
    str_querystring = 'querystring',
    str_fragment = 'fragment',
    str_hash = 'hash',
    str_elemUrlAttr = 'elemUrlAttr',
    str_href = 'href',
    str_src = 'src',
    
    browser = $.browser,
    is_old_ie = browser.msie && browser.version < 8,
    
    // Does the browser support window.onhashchange? Test for IE version, since
    // IE8 incorrectly reports this when in "IE7" or "IE8 Compatibility View"!
    supports_onhashchange = 'on' + str_hashchange in window && !is_old_ie,
    
    // Reused RegExp.
    re_trim_querystring = /^.*\?|#.*$/g,
    re_trim_fragment = /^.*\#/,
    
    // Used by jQuery.elemUrlAttr.
    elemUrlAttr_cache = {};
  
  // A few commonly used bits, broken out to help reduce minified file size.
  
  function is_string( arg ) {
    return typeof arg === 'string';
  };
  
  // Why write the same function twice? Let's curry! Mmmm, curry..
  
  function curry( func ) {
    var args = aps.call( arguments, 1 );
    
    return function() {
      return func.apply( this, args.concat( aps.call( arguments ) ) );
    };
  };
  
  // Section: Param (to string)
  // 
  // Method: jQuery.param.querystring
  // 
  // Retrieve the query string from a URL or if no arguments are passed, the
  // current document.location.
  // 
  // Usage:
  // 
  // > jQuery.param.querystring( [ url ] );
  // 
  // Arguments:
  // 
  //  url - (String) A URL containing query string params to be parsed. If url
  //    is not passed, the current document.location is used.
  // 
  // Returns:
  // 
  //  (String) The parsed query string, with any leading "?" removed.
  //
  
  // Method: jQuery.param.querystring (build url)
  // 
  // Merge a URL, with or without pre-existing query string params, plus any
  // object, params string or URL containing query string params into a new URL.
  // 
  // Usage:
  // 
  // > jQuery.param.querystring( url, params [, merge_mode ] );
  // 
  // Arguments:
  // 
  //  url - (String) A valid URL for params to be merged into. This URL may
  //    contain a query string and/or fragment (hash).
  //  params - (String) A params string or URL containing query string params to
  //    be merged into url.
  //  params - (Object) A params object to be merged into url.
  //  merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
  //    specified, and is as-follows:
  // 
  //    * 0: params in the params argument will override any query string
  //         params in url.
  //    * 1: any query string params in url will override params in the params
  //         argument.
  //    * 2: params argument will completely replace any query string in url.
  // 
  // Returns:
  // 
  //  (String) Either a params string with urlencoded data or a URL with a
  //    urlencoded query string in the format 'a=b&c=d&e=f'.
  
  // Method: jQuery.param.fragment
  // 
  // Retrieve the fragment (hash) from a URL or if no arguments are passed, the
  // current document.location.
  // 
  // Usage:
  // 
  // > jQuery.param.fragment( [ url ] );
  // 
  // Arguments:
  // 
  //  url - (String) A URL containing fragment (hash) params to be parsed. If
  //    url is not passed, the current document.location is used.
  // 
  // Returns:
  // 
  //  (String) The parsed fragment (hash) string, with any leading "#" removed.
  
  // Method: jQuery.param.fragment (build url)
  // 
  // Merge a URL, with or without pre-existing fragment (hash) params, plus any
  // object, params string or URL containing fragment (hash) params into a new
  // URL.
  // 
  // Usage:
  // 
  // > jQuery.param.fragment( url, params [, merge_mode ] );
  // 
  // Arguments:
  // 
  //  url - (String) A valid URL for params to be merged into. This URL may
  //    contain a query string and/or fragment (hash).
  //  params - (String) A params string or URL containing fragment (hash) params
  //    to be merged into url.
  //  params - (Object) A params object to be merged into url.
  //  merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
  //    specified, and is as-follows:
  // 
  //    * 0: params in the params argument will override any fragment (hash)
  //         params in url.
  //    * 1: any fragment (hash) params in url will override params in the
  //         params argument.
  //    * 2: params argument will completely replace any query string in url.
  // 
  // Returns:
  // 
  //  (String) Either a params string with urlencoded data or a URL with a
  //    urlencoded fragment (hash) in the format 'a=b&c=d&e=f'.
  
  function jq_param_sub( is_fragment, re, url, params, merge_mode ) {
    var result,
      qs,
      matches,
      url_params,
      hash;
    
    if ( params !== undefined ) {
      // Build URL by merging params into url string.
      
      // matches[1] = url part that precedes params, not including trailing ?/#
      // matches[2] = params, not including leading ?/#
      // matches[3] = if in 'querystring' mode, hash including leading #, otherwise ''
      matches = url.match( is_fragment ? /^([^#]*)\#?(.*)$/ : /^([^#?]*)\??([^#]*)(#?.*)/ );
      
      // Get the hash if in 'querystring' mode, and it exists.
      hash = matches[3] || '';
      
      if ( merge_mode === 2 && is_string( params ) ) {
        // If merge_mode is 2 and params is a string, merge the fragment / query
        // string into the URL wholesale, without converting it into an object.
        qs = params.replace( re, '' );
        
      } else {
        // Convert relevant params in url to object.
        url_params = jq_deparam( matches[2] );
        
        params = is_string( params )
          
          // Convert passed params string into object.
          ? jq_deparam[ is_fragment ? str_fragment : str_querystring ]( params )
          
          // Passed params object.
          : params;
        
        qs = merge_mode === 2 ? params                              // passed params replace url params
          : merge_mode === 1  ? $.extend( {}, params, url_params )  // url params override passed params
          : $.extend( {}, url_params, params );                     // passed params override url params
        
        // Convert params object to a string.
        qs = jq_param( qs );
      }
      
      // Build URL from the base url, querystring and hash. In 'querystring'
      // mode, ? is only added if a query string exists. In 'fragment' mode, #
      // is always added.
      result = matches[1] + ( is_fragment ? '#' : qs || !matches[1] ? '?' : '' ) + qs + hash;
      
    } else if ( url ) {
      // Parse params from URL string.
      result = url.replace( re, '' );
      
    } else {
      result = is_fragment
        
        // Parse hash from location.href, removing leading #. Firefox urldecodes
        // location.hash by default, which breaks everything.
        ? loc[ str_hash ] ? loc[ str_href ].replace( re, '' ) : ''
        
        // Get location.search and removing any leading ?
        : loc.search.replace( /^\??/, '' );
    }
    
    return result;
  };
  
  jq_param[ str_querystring ]                  = curry( jq_param_sub, 0, re_trim_querystring );
  jq_param[ str_fragment ] = jq_param_fragment = curry( jq_param_sub, 1, re_trim_fragment );
  
  // Section: Deparam (from string)
  // 
  // Method: jQuery.deparam
  // 
  // Deserialize a params string into an object, optionally coercing numbers,
  // booleans, null and undefined values; this method is the counterpart to the
  // internal jQuery.param method.
  // 
  // Usage:
  // 
  // > jQuery.deparam( params [, coerce ] );
  // 
  // Arguments:
  // 
  //  params - (String) A params string to be parsed.
  //  coerce - (Boolean) If true, coerces any numbers or true, false, null, and
  //    undefined to their actual value. Defaults to false if omitted.
  // 
  // Returns:
  // 
  //  (Object) An object representing the deserialized params string.
  
  $.deparam = jq_deparam = function( params, coerce ) {
    var obj = {},
      coerce_types = { 'true': !0, 'false': !1, 'null': null };
    
    // Iterate over all name=value pairs.
    $.each( params.replace( /\+/g, ' ' ).split( '&' ), function(j,v){
      var param = v.split( '=' ),
        key = decode( param[0] ),
        val,
        cur = obj,
        i = 0,
        
        // If key is more complex than 'foo', like 'a[]' or 'a[b][c]', split it
        // into its component parts.
        keys = key.split( '][' ),
        keys_last = keys.length - 1;
      
      // If the first keys part contains [ and the last ends with ], then []
      // are correctly balanced.
      if ( /\[/.test( keys[0] ) && /\]$/.test( keys[ keys_last ] ) ) {
        // Remove the trailing ] from the last keys part.
        keys[ keys_last ] = keys[ keys_last ].replace( /\]$/, '' );
        
        // Split first keys part into two parts on the [ and add them back onto
        // the beginning of the keys array.
        keys = keys.shift().split('[').concat( keys );
        
        keys_last = keys.length - 1;
      } else {
        // Basic 'foo' style key.
        keys_last = 0;
      }
      
      // Are we dealing with a name=value pair, or just a name?
      if ( param.length === 2 ) {
        val = decode( param[1] );
        
        // Coerce values.
        if ( coerce ) {
          val = val && !isNaN(val)            ? +val              // number
            : val === 'undefined'             ? undefined         // undefined
            : coerce_types[val] !== undefined ? coerce_types[val] // true, false, null
            : val;                                                // string
        }
        
        if ( keys_last ) {
          // Complex key, build deep object structure based on a few rules:
          // * The 'cur' pointer starts at the object top-level.
          // * [] = array push (n is set to array length), [n] = array if n is 
          //   numeric, otherwise object.
          // * If at the last keys part, set the value.
          // * For each keys part, if the current level is undefined create an
          //   object or array based on the type of the next keys part.
          // * Move the 'cur' pointer to the next level.
          // * Rinse & repeat.
          for ( ; i <= keys_last; i++ ) {
            key = keys[i] === '' ? cur.length : keys[i];
            cur = cur[key] = i < keys_last
              ? cur[key] || ( keys[i+1] && isNaN( keys[i+1] ) ? {} : [] )
              : val;
          }
          
        } else {
          // Simple key, even simpler rules, since only scalars and shallow
          // arrays are allowed.
          
          if ( $.isArray( obj[key] ) ) {
            // val is already an array, so push on the next value.
            obj[key].push( val );
            
          } else if ( obj[key] !== undefined ) {
            // val isn't an array, but since a second value has been specified,
            // convert val into an array.
            obj[key] = [ obj[key], val ];
            
          } else {
            // val is a scalar.
            obj[key] = val;
          }
        }
        
      } else if ( key ) {
        // No value was defined, so set something meaningful.
        obj[key] = coerce
          ? undefined
          : '';
      }
    });
    
    return obj;
  };
  
  // Method: jQuery.deparam.querystring
  // 
  // Parse the query string from a URL or the current document.location,
  // deserializing it into an object, optionally coercing numbers, booleans,
  // null and undefined values.
  // 
  // Usage:
  // 
  // > jQuery.deparam.querystring( [ url ] [, coerce ] );
  // 
  // Arguments:
  // 
  //  url - (String) An optional params string or URL containing query string
  //    params to be parsed. If url is omitted, the current document.location
  //    is used.
  //  coerce - (Boolean) If true, coerces any numbers or true, false, null, and
  //    undefined to their actual value. Defaults to false if omitted.
  // 
  // Returns:
  // 
  //  (Object) An object representing the deserialized params string.
  
  // Method: jQuery.deparam.fragment
  // 
  // Parse the fragment (hash) from a URL or the current document.location,
  // deserializing it into an object, optionally coercing numbers, booleans,
  // null and undefined values.
  // 
  // Usage:
  // 
  // > jQuery.deparam.fragment( [ url ] [, coerce ] );
  // 
  // Arguments:
  // 
  //  url - (String) An optional params string or URL containing fragment (hash)
  //    params to be parsed. If url is omitted, the current document.location
  //    is used.
  //  coerce - (Boolean) If true, coerces any numbers or true, false, null, and
  //    undefined to their actual value. Defaults to false if omitted.
  // 
  // Returns:
  // 
  //  (Object) An object representing the deserialized params string.
  
  function jq_deparam_sub( mode, re, url_or_params, coerce ) {
    if ( url_or_params === undefined || typeof url_or_params === 'boolean' ) {
      // url_or_params not specified.
      coerce = url_or_params;
      url_or_params = jq_param[ mode ]();
    } else {
      url_or_params = is_string( url_or_params )
        ? url_or_params.replace( re, '' )
        : url_or_params;
    }
    
    return jq_deparam( url_or_params, coerce );
  };
  
  jq_deparam[ str_querystring ]                    = curry( jq_deparam_sub, str_querystring, re_trim_querystring );
  jq_deparam[ str_fragment ] = jq_deparam_fragment = curry( jq_deparam_sub, str_fragment, re_trim_fragment );
  
  // Section: Element manipulation
  // 
  // Method: jQuery.elemUrlAttr
  // 
  // Get the internal "Default URL attribute per tag" list, or augment the list
  // with additional tag-attribute pairs, in case the defaults are insufficient.
  // 
  // In the <jQuery.fn.querystring> and <jQuery.fn.fragment> methods, this list
  // is used to determine which attribute contains the URL to be modified, if
  // an "attr" param is not specified.
  // 
  // Default Tag-Attribute List:
  // 
  //  a      - href
  //  base   - href
  //  iframe - src
  //  img    - src
  //  input  - src
  //  form   - action
  //  link   - href
  //  script - src
  // 
  // Usage:
  // 
  // > jQuery.elemUrlAttr( [ tag_attr ] );
  // 
  // Arguments:
  // 
  //  tag_attr - (Object) An object containing a list of tag names and their
  //    associated default attribute names in the format { tag: 'attr', ... } to
  //    be merged into the internal tag-attribute list.
  // 
  // Returns:
  // 
  //  (Object) An object containing all stored tag-attribute values.
  
  // Only define function and set defaults if function doesn't already exist, as
  // the urlInternal plugin will provide this method as well.
  $[ str_elemUrlAttr ] || ($[ str_elemUrlAttr ] = function( obj ) {
    return $.extend( elemUrlAttr_cache, obj );
  })({
    a: str_href,
    base: str_href,
    iframe: str_src,
    img: str_src,
    input: str_src,
    form: 'action',
    link: str_href,
    script: str_src
  });
  
  jq_elemUrlAttr = $[ str_elemUrlAttr ];
  
  // Method: jQuery.fn.querystring
  // 
  // Update URL attribute in one or more elements, merging the current URL (with
  // or without pre-existing query string params) plus any params object or
  // string into a new URL, which is then set into that attribute. Like
  // <jQuery.param.querystring (build url)>, but for all elements in a jQuery
  // collection.
  // 
  // Usage:
  // 
  // > jQuery('selector').querystring( [ attr, ] params [, merge_mode ] );
  // 
  // Arguments:
  // 
  //  attr - (String) Optional name of an attribute that will contain a URL to
  //    merge params or url into. See <jQuery.elemUrlAttr> for a list of default
  //    attributes.
  //  params - (Object) A params object to be merged into the URL attribute.
  //  params - (String) A URL containing query string params, or params string
  //    to be merged into the URL attribute.
  //  merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
  //    specified, and is as-follows:
  //    
  //    * 0: params in the params argument will override any params in attr URL.
  //    * 1: any params in attr URL will override params in the params argument.
  //    * 2: params argument will completely replace any query string in attr
  //         URL.
  // 
  // Returns:
  // 
  //  (jQuery) The initial jQuery collection of elements, but with modified URL
  //  attribute values.
  
  // Method: jQuery.fn.fragment
  // 
  // Update URL attribute in one or more elements, merging the current URL (with
  // or without pre-existing fragment/hash params) plus any params object or
  // string into a new URL, which is then set into that attribute. Like
  // <jQuery.param.fragment (build url)>, but for all elements in a jQuery
  // collection.
  // 
  // Usage:
  // 
  // > jQuery('selector').fragment( [ attr, ] params [, merge_mode ] );
  // 
  // Arguments:
  // 
  //  attr - (String) Optional name of an attribute that will contain a URL to
  //    merge params into. See <jQuery.elemUrlAttr> for a list of default
  //    attributes.
  //  params - (Object) A params object to be merged into the URL attribute.
  //  params - (String) A URL containing fragment (hash) params, or params
  //    string to be merged into the URL attribute.
  //  merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
  //    specified, and is as-follows:
  //    
  //    * 0: params in the params argument will override any params in attr URL.
  //    * 1: any params in attr URL will override params in the params argument.
  //    * 2: params argument will completely replace any fragment (hash) in attr
  //         URL.
  // 
  // Returns:
  // 
  //  (jQuery) The initial jQuery collection of elements, but with modified URL
  //  attribute values.
  
  function jq_fn_sub( mode, force_attr, params, merge_mode ) {
    if ( !is_string( params ) && typeof params !== 'object' ) {
      // force_attr not specified.
      merge_mode = params;
      params = force_attr;
      force_attr = undefined;
    }
    
    return this.each(function(){
      var that = $(this),
        
        // Get attribute specified, or default specified via $.elemUrlAttr.
        attr = force_attr || jq_elemUrlAttr()[ ( this.nodeName || '' ).toLowerCase() ] || '',
        
        // Get URL value.
        url = attr && that.attr( attr ) || '';
      
      // Update attribute with new URL.
      that.attr( attr, jq_param[ mode ]( url, params, merge_mode ) );
    });
    
  };
  
  $.fn[ str_querystring ] = curry( jq_fn_sub, str_querystring );
  $.fn[ str_fragment ]    = curry( jq_fn_sub, str_fragment );
  
  // Section: History, hashchange event
  // 
  // Method: jQuery.bbq.pushState
  // 
  // Adds a 'state' into the browser history at the current position, setting
  // location.hash and triggering any bound <window.onhashchange> event
  // callbacks (provided the new state is different than the previous state).
  // 
  // If no arguments are passed, an empty state is created, which is just a
  // shortcut for jQuery.bbq.pushState( {}, 2 ).
  // 
  // Usage:
  // 
  // > jQuery.bbq.pushState( [ params [, merge_mode ] ] );
  // 
  // Arguments:
  // 
  //  params - (String) A serialized params string or a hash string beginning
  //    with # to merge into location.hash.
  //  params - (Object) A params object to merge into location.hash.
  //  merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
  //    specified (unless a hash string beginning with # is specified, in which
  //    case merge behavior defaults to 2), and is as-follows:
  // 
  //    * 0: params in the params argument will override any params in the
  //         current state.
  //    * 1: any params in the current state will override params in the params
  //         argument.
  //    * 2: params argument will completely replace current state.
  // 
  // Returns:
  // 
  //  Nothing.
  // 
  // Additional Notes:
  // 
  //  * Setting an empty state may cause the browser to scroll.
  //  * Unlike the fragment and querystring methods, if a hash string beginning
  //    with # is specified as the params agrument, merge_mode defaults to 2.
  
  jq_bbq.pushState = jq_bbq_pushState = function( params, merge_mode ) {
    if ( is_string( params ) && /^#/.test( params ) && merge_mode === undefined ) {
      // Params string begins with # and merge_mode not specified, so completely
      // overwrite document.location.hash.
      merge_mode = 2;
    }
    
    var has_args = params !== undefined,
      // Merge params into document.location using $.param.fragment.
      url = jq_param_fragment( loc[ str_href ], has_args ? params : {}, has_args ? merge_mode : 2 );
    
    // Set new document.location.href. If hash is empty, use just # to prevent
    // browser from reloading the page. Note that Safari 3 & Chrome barf on
    // location.hash = '#'.
    loc[ str_href ] = url + ( /#/.test( url ) ? '' : '#' );
  };
  
  // Method: jQuery.bbq.getState
  // 
  // Retrieves the current 'state' from the browser history, parsing
  // location.hash for a specific key or returning an object containing the
  // entire state, optionally coercing numbers, booleans, null and undefined
  // values.
  // 
  // Usage:
  // 
  // > jQuery.bbq.getState( [ key ] [, coerce ] );
  // 
  // Arguments:
  // 
  //  key - (String) An optional state key for which to return a value.
  //  coerce - (Boolean) If true, coerces any numbers or true, false, null, and
  //    undefined to their actual value. Defaults to false.
  // 
  // Returns:
  // 
  //  (Anything) If key is passed, returns the value corresponding with that key
  //    in the location.hash 'state', or undefined. If not, an object
  //    representing the entire 'state' is returned.
  
  jq_bbq.getState = function( key, coerce ) {
    return key === undefined || typeof key === 'boolean'
      ? jq_deparam_fragment( key ) // 'key' really means 'coerce' here
      : jq_deparam_fragment( coerce )[ key ];
  };
  
  // Property: jQuery.bbq.pollDelay
  // 
  // The numeric interval (in milliseconds) at which the <window.onhashchange>
  // polling loop executes. Defaults to 100.
  
  jq_bbq.pollDelay = 100;
  
  // Event: window.onhashchange
  // 
  // Fired when document.location.hash changes. In browsers that support it, the
  // native window.onhashchange event is used (IE8, FF3.6), otherwise a polling
  // loop is initialized, running every <jQuery.bbq.pollDelay> milliseconds to
  // see if the hash has changed. In IE 6 and 7, a hidden IFRAME is created
  // to allow hash-based history to work.
  // 
  // Usage in 1.4pre and newer:
  // 
  // In 1.4pre and newer, the event object that is passed into the callback is
  // augmented with an additional e.fragment property that contains the current
  // document location.hash state as a string, as well as an e.getState method.
  // 
  // e.fragment is equivalent to the output of <jQuery.param.fragment>, and
  // e.getState() is equivalent to <jQuery.bbq.getState>, except that they refer
  // to the event-specific state value stored in the event object, instead of
  // the current document.location, allowing the event object to be referenced
  // later, even if document.location has changed.
  // 
  // > $(window).bind( 'hashchange', function(e) {
  // >   var hash_str = e.fragment,
  // >     param_obj = e.getState(),
  // >     param_val = e.getState( 'param_name' ),
  // >     param_val_coerced = e.getState( 'param_name', true );
  // >   ...
  // > });
  // 
  // Usage in 1.3.2:
  // 
  // In 1.3.2, the event object is unable to be augmented as in 1.4pre+, so the
  // fragment state isn't bound to the event object and must instead be parsed
  // using the <jQuery.param.fragment> and <jQuery.bbq.getState> methods.
  // 
  // > $(window).bind( 'hashchange', function(e) {
  // >   var hash_str = $.param.fragment(),
  // >     param_obj = $.bbq.getState(),
  // >     param_val = $.bbq.getState( 'param_name' ),
  // >     param_val_coerced = $.bbq.getState( 'param_name', true );
  // >   ...
  // > });
  // 
  // Additional Notes:
  // 
  // * The polling loop and iframe are not created until at least one callback
  //   is actually bound to 'hashchange'.
  // * If you need the bound callback(s) to execute immediately, in cases where
  //   the page 'state' exists on page load (via bookmark or page refresh, for
  //   example) use $(window).trigger( 'hashchange' );
  
  $.event.special[ str_hashchange ] = {
    
    // Called only when the first 'hashchange' event is bound to window.
    setup: function() {
      // If window.onhashchange is supported natively, there's nothing to do..
      if ( supports_onhashchange ) { return false; }
      
      // Otherwise, we need to create our own. And we don't want to call this
      // until the user binds to the event, just in case they never do, since it
      // will create a polling loop and possibly even a hidden IFRAME.
      fake_onhashchange.start();
    },
    
    // Called only when the last 'hashchange' event is unbound from window.
    teardown: function() {
      // If window.onhashchange is supported natively, there's nothing to do..
      if ( supports_onhashchange ) { return false; }
      
      // Otherwise, we need to stop ours (if possible).
      fake_onhashchange.stop();
    },
    
    // Augmenting the event object with the .fragment property and .getState
    // method requires jQuery 1.4 or newer. Note: with 1.3.2, everything will
    // work, but the event won't be augmented)
    add: function( handler, data, namespaces ) {
      return function(e) {
        // e.fragment is set to the value of location.hash (with any leading #
        // removed) at the time the event is triggered.
        var hash = e[ str_fragment ] = jq_param_fragment();
        
        // e.getState() works just like $.bbq.getState(), but uses the
        // e.fragment property stored on the event object.
        e.getState = function( key, coerce ) {
          return key === undefined || typeof key === 'boolean'
            ? jq_deparam( hash, key ) // 'key' really means 'coerce' here
            : jq_deparam( hash, coerce )[ key ];
        };
        
        handler.apply( this, arguments );
      };
    }
  };
  
  // fake_onhashchange does all the work of triggering the window.onhashchange
  // event for browsers that don't natively support it, including creating a
  // polling loop to watch for hash changes and in IE 6/7 creating a hidden
  // IFRAME to enable back and forward.
  fake_onhashchange = (function(){
    var self = {},
      timeout_id,
      iframe,
      set_history,
      get_history;
    
    // Initialize. In IE 6/7, creates a hidden IFRAME for history handling.
    function init(){
      // Most browsers don't need special methods here..
      set_history = get_history = function(val){ return val; };
      
      // But IE6/7 do!
      if ( is_old_ie ) {
        
        // Create hidden IFRAME at the end of the body.
        iframe = $('<iframe src="javascript:0"/>').hide().appendTo( 'body' )[0].contentWindow;
        
        // Get history by looking at the hidden IFRAME's location.hash.
        get_history = function() {
          return iframe.document.location[ str_hash ].replace( /^#/, '' );
        };
        
        // Set a new history item by opening and then closing the IFRAME
        // document, *then* setting its location.hash.
        set_history = function( hash, history_hash ) {
          if ( hash !== history_hash ) {
            var doc = iframe.document;
            doc.open();
            doc.close();
            doc.location[ str_hash ] = '#' + hash;
          }
        };
        
        // Set initial history.
        set_history( jq_param_fragment() );
      }
    };
    
    // Start the polling loop.
    self.start = function() {
      // Polling loop is already running!
      if ( timeout_id ) { return; }
      
      // Remember the initial hash so it doesn't get triggered immediately.
      var last_hash = jq_param_fragment();
      
      // Initialize if not yet initialized.
      set_history || init();
      
      // This polling loop checks every $.bbq.pollDelay milliseconds to see if
      // location.hash has changed, and triggers the 'hashchange' event on
      // window when necessary.
      (function loopy(){
        var hash = jq_param_fragment(),
          history_hash = get_history( last_hash );
        
        if ( hash !== last_hash ) {
          set_history( last_hash = hash, history_hash );
          
          $(window).trigger( str_hashchange );
          
        } else if ( history_hash !== last_hash ) {
          jq_bbq_pushState( '#' + history_hash );
        }
        
        timeout_id = setTimeout( loopy, jq_bbq.pollDelay );
      })();
    };
    
    // Stop the polling loop, but only if an IE6/7 IFRAME wasn't created. In
    // that case, even if there are no longer any bound event handlers, the
    // polling loop is still necessary for back/next to work at all!
    self.stop = function() {
      if ( !iframe ) {
        timeout_id && clearTimeout( timeout_id );
        timeout_id = 0;
      }
    };
    
    return self;
  })();
  
})(jQuery,this);