function $(eln)
	{
		return document.getElementById(eln);
	}
	function getElementsByClass(searchClass,node,tag) 
	{
		var classElements = new Array();
		if ( node == null )
			node = document;
		if ( tag == null )
			tag = '*';
		var els = node.getElementsByTagName(tag);
		var elsLen = els.length;
		var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
		for (i = 0, j = 0; i < elsLen; i++) 
		{
			if ( pattern.test(els[i].className) ) 
			{
				classElements[j] = els[i];
				j++;
			}
		}
		return classElements;
	}