function getElementsByClassName(strClass, strTag, objContElm) 
	{ 
	strTag = strTag || "*"; 
	objContElm = objContElm || document; 
	var objColl = objContElm.getElementsByTagName(strTag); 
	if (!objColl.length && strTag == "*" && objContElm.all) objColl = objContElm.all; 
	var arr = new Array(); 
	var delim = strClass.indexOf('|') != -1 ? '|' : ' '; 
	var arrClass = strClass.split(delim); 
	for (var i = 0, j = objColl.length; i < j; i++) 
		{ 
		var arrObjClass = objColl[i].className.split(' '); 
		if (delim == ' ' && arrClass.length > arrObjClass.length) continue; 
		var c = 0; 
		comparisonLoop: 
		for (var k = 0, l = arrObjClass.length; k < l; k++) 
			{ 
			for (var m = 0, n = arrClass.length; m < n; m++) 
				{ 
				if (arrClass[m] == arrObjClass[k]) c++; 
				if (( delim == '|' && c == 1) || (delim == ' ' && c == arrClass.length)) 
					{ 
					arr.push(objColl[i]); 
					break comparisonLoop; 
					} 
				} 
			} 
		} 
	return arr; 
	}
	
function getElement(id){
	return document.getElementById(id);
}

function toggle(el){
	var whichEl = document.getElementById(el);
	if(whichEl.style.display == 'block' || whichEl.style.display == '') {
		whichEl.style.display = 'none';
	} else {
		whichEl.style.display = 'block';
	}
}