function getDefvalue(){
	if(typeof defvalue=='undefined'){
		defvalue=document.getElementById('sucheForm').suchfeld.value;
	}
	return(defvalue);
}
function toggleValue(field){
	defvalue=getDefvalue();
	if(defvalue){
		if(field.value==defvalue){
			field.value='';
		} else if(field.value==''){
			field.value=defvalue;
		}
	}
}
function submitSuche(){
	defvalue=getDefvalue();
	if(document.getElementById('sucheForm').suchfeld.value==defvalue){
		document.getElementById('sucheForm').suchfeld.value=''
	}
	document.getElementById('sucheForm').submit();
}