/*
   Behavior v1.1.1 by Ben Nolan & Clinton R. Nixon, June 2006. 
   Based largely on the work of Simon Willison (see comments 
   by Simon below).

   Description:

   	Uses css selectors to apply javascript behaviors to enable
   	unobtrusive javascript in html documents.

   Usage:   

	var myrules = {
		'b.someclass' : function(element){
			element.onclick = function(){
				alert(this.innerHTML);
			}
		},
		'#someid u' : function(element){
			element.onmouseover = function(){
				this.innerHTML = "BLAH!";
			}
		}
	};

	Behavior.register(myrules);

	// Call Behavior.apply() to re-apply the rules (if you
	// update the dom, etc).

   License:

   	This file is entirely BSD licensed.

   More information:

   	http://ripcord.co.nz/behavior/

   Changelog:
   06/27/06 - CRN -
	  Was: if (tagName && element.nodeName.toLowerCase() != tagName) {
	  Now: if (element && tagName && element.nodeName.toLowerCase() != tagName) {
*/

var Behavior = {
	list : new Array,

	register : function(sheet){
        if (typeof $L != 'undefined') $L.trace( 'deprecatedJsFunctionCall', {file:'behavior.js',func:'register',page:document.location} );
		Behavior.list.push(sheet);
	},

	start : function(){
        // if (typeof $L != 'undefined') $L.trace( 'deprecatedJsFunctionCall', {file:'behavior.js',func:'start',page:document.location} );
        // no tracing this function because it is called on every page
		Behavior.addLoadEvent(function(){
			Behavior.apply();
		});
	},

	apply : function(){
        // if (typeof $L != 'undefined') $L.trace( 'deprecatedJsFunctionCall', {file:'behavior.js',func:'apply',page:document.location} );
        // no tracing this function because it is called on every page
		for (h=0;sheet=Behavior.list[h];h++){
			for (selector in sheet){
				list = document.getElementsBySelector(selector);

				if (!list){
					continue;
				}

				for (i=0;element=list[i];i++){
					sheet[selector](element);
				}
			}
		}
	},

	addLoadEvent : function(func){
        // if (typeof $L != 'undefined') $L.trace( 'deprecatedJsFunctionCall', {file:'behavior.js',func:'addLoadEvent',page:document.location} );
        // no tracing this function because it is called on every page
		var oldonload = window.onload;

		if (typeof window.onload != 'function') {
			window.onload = func;
		} else {
			window.onload = function() {
				oldonload();
				func();
			}
		}
	}
}

Behavior.start();

/*
   The following code is Copyright (C) Simon Willison 2004.

   document.getElementsBySelector(selector)
   - returns an array of element objects from the current document
	 matching the CSS selector. Selectors can contain element names,
	 class names and ids and can be nested. For example:

	   elements = document.getElementsBySelect('div#main p a.external')

	 Will return an array of all 'a' elements with 'external' in their
	 class attribute that are contained inside 'p' elements that are
	 contained inside the 'div' element which has id="main"

   New in version 0.4: Support for CSS2 and CSS3 attribute selectors:
   See http://www.w3.org/TR/css3-selectors/#attribute-selectors

   Version 0.4 - Simon Willison, March 25th 2003
   -- Works in Phoenix 0.5, Mozilla 1.3, Opera 7, Internet Explorer 6, Internet Explorer 5 on Windows
   -- Opera 7 fails 
*/

function getAllChildren(e) {
  // Returns all children of element. Workaround required for IE5/Windows. Ugh.
  if (typeof $L != 'undefined') $L.trace( 'deprecatedJsFunctionCall', {file:'behavior.js',func:'getAllChildren',page:document.location} );
  return e.all ? e.all : e.getElementsByTagName('*');
}

if (!document.getElementsBySelector) {

	document.getElementsBySelector = function(selector) {
        if (typeof $L != 'undefined') $L.trace( 'deprecatedJsFunctionCall', {file:'behavior.js',func:'getElementsBySelector',page:document.location} );
	  // Attempt to fail gracefully in lesser browsers
	  if (!document.getElementsByTagName) {
		return new Array();
	  }
	  // Split selector in to tokens
	  var tokens = selector.split(' ');
	  var currentContext = new Array(document);
	  for (var i = 0; i < tokens.length; i++) {
		token = tokens[i].replace(/^\s+/,'').replace(/\s+$/,'');;
		if (token.indexOf('#') > -1) {
		  // Token is an ID selector
		  var bits = token.split('#');
		  var tagName = bits[0];
		  var id = bits[1];
		  var element = document.getElementById(id);
		  if (element && tagName && element.nodeName.toLowerCase() != tagName) {
			// tag with that ID not found, return false
			return new Array();
		  }
		  // Set currentContext to contain just this element
		  currentContext = new Array(element);
		  continue; // Skip to next token
		}
		if (token.indexOf('.') > -1) {
		  // Token contains a class selector
		  var bits = token.split('.');
		  var tagName = bits[0];
		  var className = bits[1];
		  if (!tagName) {
			tagName = '*';
		  }
		  // Get elements matching tag, filter them for class selector
		  var found = new Array;
		  var foundCount = 0;
		  for (var h = 0; h < currentContext.length; h++) {
			var elements;
			if (tagName == '*') {
				elements = getAllChildren(currentContext[h]);
			} else {
				elements = currentContext[h].getElementsByTagName(tagName);
			}
			for (var j = 0; j < elements.length; j++) {
			  found[foundCount++] = elements[j];
			}
		  }
		  currentContext = new Array;
		  var currentContextIndex = 0;
		  for (var k = 0; k < found.length; k++) {
			if (found[k].className && found[k].className.match(new RegExp('\\b'+className+'\\b'))) {
			  currentContext[currentContextIndex++] = found[k];
			}
		  }
		  continue; // Skip to next token
		}
		// Code to deal with attribute selectors
		if (token.match(/^(\w*)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/)) {
		  var tagName = RegExp.$1;
		  var attrName = RegExp.$2;
		  var attrOperator = RegExp.$3;
		  var attrValue = RegExp.$4;
		  if (!tagName) {
			tagName = '*';
		  }
		  // Grab all of the tagName elements within current context
		  var found = new Array;
		  var foundCount = 0;
		  for (var h = 0; h < currentContext.length; h++) {
			var elements;
			if (tagName == '*') {
				elements = getAllChildren(currentContext[h]);
			} else {
				elements = currentContext[h].getElementsByTagName(tagName);
			}
			for (var j = 0; j < elements.length; j++) {
			  found[foundCount++] = elements[j];
			}
		  }
		  currentContext = new Array;
		  var currentContextIndex = 0;
		  var checkFunction; // This function will be used to filter the elements
		  switch (attrOperator) {
			case '=': // Equality
			  checkFunction = function(e) { return (e.getAttribute(attrName) == attrValue); };
			  break;
			case '~': // Match one of space seperated words
			  checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('\\b'+attrValue+'\\b'))); };
			  break;
			case '|': // Match start with value followed by optional hyphen
			  checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('^'+attrValue+'-?'))); };
			  break;
			case '^': // Match starts with value
			  checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) == 0); };
			  break;
			case '$': // Match ends with value - fails with "Warning" in Opera 7
			  checkFunction = function(e) { return (e.getAttribute(attrName).lastIndexOf(attrValue) == e.getAttribute(attrName).length - attrValue.length); };
			  break;
			case '*': // Match ends with value
			  checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) > -1); };
			  break;
			default :
			  // Just test for existence of attribute
			  checkFunction = function(e) { return e.getAttribute(attrName); };
		  }
		  currentContext = new Array;
		  var currentContextIndex = 0;
		  for (var k = 0; k < found.length; k++) {
			if (checkFunction(found[k])) {
			  currentContext[currentContextIndex++] = found[k];
			}
		  }
		  // alert('Attribute Selector: '+tagName+' '+attrName+' '+attrOperator+' '+attrValue);
		  continue; // Skip to next token
		}

		if (!currentContext[0]){
			return;
		}

		// If we get here, token is JUST an element (not a class or ID selector)
		tagName = token;
		var found = new Array;
		var foundCount = 0;
		for (var h = 0; h < currentContext.length; h++) {
		  var elements = currentContext[h].getElementsByTagName(tagName);
		  for (var j = 0; j < elements.length; j++) {
			found[foundCount++] = elements[j];
		  }
		}
		currentContext = found;
	  }
	  return currentContext;
	}

	/* That revolting regular expression explained
	/^(\w+)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/
	  \---/  \---/\-------------/    \-------/
		|      |         |               |
		|      |         |           The value
		|      |    ~,|,^,$,* or =
		|   Attribute
	   Tag
	*/
}