function?bind(el,eventType,?callback){
	if(typeof?el.addEventListener?===?"function"){
		???el.addEventListener(eventType,?callback,false);
		}else?if(typeof?el.attachEvent?===?"function"){
		???el.attechEvent("on"?+?eventType,callback);
			}
	}
	
function?mouseoverHandler(e){
	var?target?=?e.target?||?e.srcElement;
	var?outer?=?document.getElementById("subject");
	var?list?=?outer.getElementsByTagName("li");
	
	for(var?i?=?0;?i?<?list.length;?i++){
		list[i].className?=?"";
		}
	
	???while(target.tagName?!=?"LI"?&&?target.tagName?!=?"BODY"){
		?????target?=?target.parentNode;
		???}?
	???target.className?=?"big";
	
	}


function?initList(){
	var?outer?=?document.getElementById("subject");
	var?list?=?outer.getElementsByTagName("li");
	for(var?i=0;?i?<?list.length;?i++){
	?????bind(list[i],"mouseover",?mouseoverHandler);
	???}
	}
	
initList();