[cyber]

zlodiak,
вот воспользуйтесь

function hover (opt) {
	
 opt.elem.onmouseover = ElemMouseAction;	 
 opt.elem.onmouseout = ElemMouseAction;
 	
 function ElemMouseAction (evt) {
  var related, Call;
  var e = evt || event;	 
 
	if(e.type == 'mouseover'){  
	  Call = opt.over; 
	  related = e.relatedTarget || e.fromElement;
	  
	} else {
	  Call = opt.out; 
	  related =  e.relatedTarget || e.toElement;
	  
		}
		
			
	while (related && related != this) {
		related = related.parentNode;
		} 
	  
	  if(related == this) return;
	 
	  Call();
	 
	 }	

	
	}
	
hover({
	elem:document.getElementById('#bla'),
	over:function () {// срабатывает при mouseover
		
		},
	out:function (){// срабатывает при mouseout
		
		}	
	
	});