function startGoogle(){
	document.getElementById("zoekblock").style.display="";
	document.getElementById("zoekcontainer").style.display="";	
	document.getElementById("zoekvak").style.display="";
}
function exitGoogle(){
	document.getElementById("zoekvak").style.display="none";
	document.getElementById("zoekcontainer").style.display="none";
	document.getElementById("zoekblock").style.display="none";
}