var ns4 = (document.layers);
var ie4 = (document.all && !document.getElementById);
var ie5 = (document.all && document.getElementById);
var ns6 = (!document.all && document.getElementById);

function toggleDiv(id) {
	if(ns4){
		elements = document.getElementsByName('artikel');
		for (var i = 0; i < elements.length ; i++)
		{
			elements[i].visibility = "hide";
		}
		document.layers[id].visibility == "show";
	}
	// Explorer 4
	else if(ie4){
		elements = document.getElementsByName('artikel');
		for (var i = 0; i < elements.length ; i++)
		{
			elements[i].style.visibility = "hidden";
		}
		document.all[id].style.visibility = "visible";
	}
	// W3C - Explorer 5+ and Netscape 6+
	else if(ie5 || ns6){
		var elem = document.getElementsByTagName("div");    
		     for(i = 0,iarr = 0; i < elem.length; i++) {
		          att = elem[i].getAttribute("name");
		          if(att == "artikel") {
				elem[i].style.display = "none";
		          }
		     }
		  var obj = document.getElementById(id);
		  obj.style.display = "block";
	}
	
}