var timerID;

function openCombobox(div){
clearTimeout(timerID);
object=document.getElementById(div);
if(object.style.visibility=='visible'){
object.style.visibility='hidden';
}else{
object.style.visibility='visible';
closeCombobox(div)
}
}
function setComboboxValues(label, url , valueObj, labelObj, selectObj){
clearTimeout(timerID);
document.getElementById(valueObj).value=url;
document.getElementById(labelObj).value=label;
document.getElementById(selectObj).style.visibility='hidden';
if(url!=''){
window.location=url;
}
}

function closeCombobox(div){
object=document.getElementById(div);
timerID = setInterval("object.style.visibility='hidden'", 1000);
}