var subId = new Array('sub1','sub2','sub3');
			var over = false;
			
			function hideAll() {
				if (!document.getElementById || over) return false;
				count = subId.length;
				for (i = 0; i < count; i++) {
					obj = document.getElementById(subId[i]);
					obj.style.display="none";
				};	
			}
			
			function show(id) {
				if (!document.getElementById) return false;
				hideAll();
				over = true;
				obj = document.getElementById(id);
				obj.style.display="block";
			}
			
			function hide(id) {
				if (!document.getElementById) return false;
				over = false;
				setTimeout("hide2('" + id +"');",200);
			}
			
			function hide2(id) {
				if (!over) {
					obj = document.getElementById(id);
					obj.style.display="none";
				};
			}
			
			function ovr() {
				over = true;
			}
			
			function out() {
				over = false;
				setTimeout("hideAll();",200);
				
			}