function changesearch(el, su, url){
	if(el.id=="sthaendler"){
		change='stnorm';
		cl="st2";
	}
	else{
		change="sthaendler";
		cl="st1";
	}
	
	document.getElementById(change).className="st "+cl;
	el.className="st active";
	document.getElementById('sform').action=url;
	document.getElementById('suche').value=su;
}