JS 사건 거품 사건 의뢰

var div = document.getElementsByTagName('div)[0];

div.attachEvent('onclick',function(){
	handle.call(div);
});
function handle(){
	//      
}

function addEvent(elem,type,handle){//elem    type    handle    
	if(elem.addEventListener){
		elem.addEventListener(type,handle,false);
	}else if(elem.attachEvent){
		elem.attachEvent('on'+type,function(){
		handle.call(elem);
		})
	}else {
		elem['on'+type] = handle;
	}
}

function stopBubble(event){
	if(event.stopPropagation){
		event.stopPropagation();
	}else{
		event.cancelBubble = true;
	}
}

function cancelHandler(event){
   	if(event.preventDefault){
   	event.preventDefault();
   }else{
   	event.returnValue = false;
   }
}

//          
<ul>
      <li>1li>
      <li>2li>
      <li>3li>
      <li>4li>
      <li>5li>
      <li>6li>
ul>
<script>
	var ul = document.getElementsByTagName("ul")[0];
	ul.onclick  = function(e){   //   for    
		var event = e ||  window.event;
		var target = event.target || event.srcElement;
		console.log(target.innerText);
	}
script>

 document.onmousedown = function(e){ //onmouseup     onclick      
    if(e.button == 2){
		console.log('right);
	}else if(e.button == 0){
		console.log('left);
	}
}

var firstTime = 0;  //       

var lastTime = 0;
var key = false;

document.onmousedown = function(){
	firstTime = new Date().getTime();
}
document.onmouseup = function(){
	lastTime = new Date().getTime();
	if(lastTime - firstTime <300){
		key = true;
	}
}
document.onclick = function(){
	if(key){
		console.log('click');
		key = false;
	}
}

//