JavaScript Dispatch Event

<html>
<head>
<script type="text/javascript">
function performClick(elemId) {
   var elem = document.getElementById(elemId);
   if(elem && document.createEvent) { // sanity check
      var evt = document.createEvent("MouseEvents");
      evt.initEvent("click", true, false);
      elem.dispatchEvent(evt);
   }
}
</script>
</head>
<body>
<a href="#" onclick="performClick('theFile');">Open file dialog</a>
<input type="file" id="theFile" />
</body>
</html>

posted on 2014-12-31 15:55 YYDaddy 阅读(402) 评论(0) 编辑收藏举报