var originalBg = false;
	
	function rowMouseover(obj) {
		
		var hoverBg = '#CCCCCC';
		
		originalBg = obj.style.backgroundColor;
		obj.style.backgroundColor = hoverBg;
		obj.style.cursor = "pointer";
		obj.style.cursor = "hand";
		
	}
	
	function rowMouseout(obj) {
		
		obj.style.backgroundColor = originalBg;
		obj.style.cursor = "default";
		
	}
	
	function getElementsByClassName(node, classname) {
		var a = [];
		var re = new RegExp('\\b' + classname + '\\b');
		var els = node.getElementsByTagName("*");
		for(var i=0,j=els.length; i<j; i++)
			if(re.test(els[i].className))a.push(els[i]);
		return a;
	}
	
	function getElementsByAttribute(oElm, strTagName, strAttributeName, strAttributeValue){
		var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName);
		var arrReturnElements = new Array();
		var oAttributeValue = (typeof strAttributeValue != "undefined")? new RegExp("(^|\\s)" + strAttributeValue + "(\\s|$)") : null;
		var oCurrent;
		var oAttribute;
		for(var i=0; i<arrElements.length; i++){
			oCurrent = arrElements[i];
			oAttribute = oCurrent.getAttribute(strAttributeName);
			if(typeof oAttribute == "string" && oAttribute.length > 0){
				if(typeof strAttributeValue == "undefined" || (oAttributeValue && oAttributeValue.test(oAttribute))){
					arrReturnElements.push(oCurrent);
				}
			}
		}
		return arrReturnElements;
	}
	
	function addEvent( obj, type, fn ) {
		if ( obj.attachEvent ) {
			obj['e'+type+fn] = fn;
			obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
			obj.attachEvent( 'on'+type, obj[type+fn] );
		} else
			obj.addEventListener( type, fn, false );
	}

	function removeEvent( obj, type, fn ) {
		if ( obj.detachEvent ) {
			obj.detachEvent( 'on'+type, obj[type+fn] );
			obj[type+fn] = null;
		} else
			obj.removeEventListener( type, fn, false );
	}