function $() {
		var elements = new Array();
		for (var i=0,len=arguments.length;i<len;i++) {
			var element = arguments[i];
			if (typeof element == 'string') {
				var matched = document.getElementById(element);
				if (matched) {
					elements.push(matched);
				} else {
					var allels = (document.all) ? document.all : document.getElementsByTagName('*');
					var regexp = new RegExp('(^| )'+element+'( |$)');
					for (var i=0,len=allels.length;i<len;i++) if (regexp.test(allels[i].className)) elements.push(allels[i]);
				}
				if (!elements.length) elements = document.getElementsByTagName(element);
				if (!elements.length) {
					elements = new Array();
					var allels = (document.all) ? document.all : document.getElementsByTagName('*');
					for (var i=0,len=allels.length;i<len;i++) if (allels[i].getAttribute(element)) elements.push(allels[i]);
				}
				if (!elements.length) {
					var allels = (document.all) ? document.all : document.getElementsByTagName('*');
					for (var i=0,len=allels.length;i<len;i++) if (allels[i].attributes) for (var j=0,lenn=allels[i].attributes.length;j<lenn;j++) if (allels[i].attributes[j].specified) if (allels[i].attributes[j].nodeValue == element) elements.push(allels[i]);
				}
			} else {
				elements.push(element);
			}
		}
		if (elements.length == 1) {
			return elements[0];
		} else {
			return elements;
		}
	}
	
	function show_hide(name)
	{
		var o = $(name);
		if(o.style.display == "none")
			o.style.display = "block";
		else
			o.style.display = "none";
	}