document.onclick=check;
function check(e){
	var target = (e && e.target) || (event && event.srcElement);
	var obj = document.getElementById('search_topics_menu');
	var obj2 = document.getElementById('search_itanswers');
	var obj3 = document.getElementById('search_entiresite');
	var obj4 = document.getElementById('search_itblogs');
	var obj5 = document.getElementById('auto_suggest');
	if(
		  target!=obj
		&&target!=obj2
		&&target!=obj3
		&&target!=obj4
		&&target!=obj5
	){
		obj.style.display='none';/* hide search type pulldown */
		obj5.style.display='none';/* hide autosuggest pulldown */
	} else if(target==obj2){
		obj.style.display='block';/* show search type pulldown */
	}
}