// menu close delay
var nav_main = {
	init: function(){
		if(window.ie6){
			var elements = $$('#nav_main ul li a');
		}	else {
			var elements = $$('#nav_main ul li');
		}
		elements.each(function(element){
			element.addEvent('mouseenter',function(e){
				var elparent = element.getParent();
				while(elparent.getTag() != 'ul' && elparent.getTag() != 'body'){
					elparent = elparent.getParent();
				}
				var hoverelements = elparent.getElements('.hover');
				hoverelements.each(function(element){
						element.removeClass('hover');					
				});
				element.addClass('hover');
				
			});

		});
		
		var topelements = $$('#nav_main .top');		
		topelements.each(function(topel){
			topel.addEvent('mouseleave',function(e){
				var hoverelements = $$('#nav_main .hover');
				(function(){
					hoverelements.each(function(element){
						element.removeClass('hover');					
					});
				}).delay(1000);	
			});
		}); 		
	}
}