/*
	CodeStyles 1.0 
		Copyright (C) Garrett Serack, February 2007 
		Licensed under the BSD License or MS-PL License (See http://fearthecowboy.com/CodeStyles/License.txt)
		
	getElementsBySelector (2003)
		Copyright (C) Simon Willison 2003.  
		Licensed user the BSD License. (See http://fearthecowboy.com/CodeStyles/License.txt)
*/ 
var CodeStyles = {
	rules : [],
	
	add : function(ruleset){
		CodeStyles.rules.push(ruleset);
	},
	
	apply : function(){
		with(CodeStyles)
			for( ruleset in rules )
				for( selector in rules[ruleset] )
					for( evt in rules[ruleset][selector] ) 
						if( elements = getElementsBySelector(selector) )
							for( each in elements)
								if( elements[each] )
									elements[each][evt] = rules[ruleset][selector][evt];
	},

	getElementsBySelector : function(selector) {
		if (!document || !document.getElementsByTagName)
			return null;

		// 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 (tagName && element.nodeName.toLowerCase() != tagName) 
					return null; 

				// 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 = (tagName == '*') ? (currentContext[h].all ? currentContext[h].all : currentContext[h].getElementsByTagName('*')) :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 = (tagName == '*') ? ( currentContext[h].all ? currentContext[h].all : currentContext[h].getElementsByTagName('*') ) :currentContext[h].getElementsByTagName(tagName);
				
					for (var j = 0; j < elements.length; j++) 
						found[foundCount++] = elements[j];
				}
				currentContext = new Array;
				
				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];
				continue; 
			}
			
			if (!currentContext[0])
				return null;
			
			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;
	}
}

var _beh_init =  document.addEventListener?document.addEventListener("DOMContentLoaded", CodeStyles.apply, false): setInterval(function(){if (/loaded|complete/.test(document.readyState)){clearInterval(_beh_init);CodeStyles.apply(); } }, 10);
