var sId = 8;
var wId = 25; 

function dClick(evt){
	var id = sId;	
	if(!evt) evt = window.event;
	var srcElem = (document.all) ? evt.srcElement : evt.target;
	if(srcElem && srcElem.id && (srcElem.id=="startBild")) id = wId; 
	location.href = "?id="+id; 
}

function init(){
	document.body.onclick = dClick;
}

window.onload = init;