javascript脚本模拟鼠标事件(2)

<script type='text/javascript'>
var xPos;
var yPos;
window.document.onmousemove=function(evt){
 evt=evt || window.event;
 if(evt.pageX){
  xPos=evt.pageX;
  yPos=evt.pageY;
 } else {
  xPos=evt.clientX+document.body.scrollLeft-document.body.clientLeft;
  yPos=evt.clientY+document.body.scrollTop-document.body.clientTop;
 }
};
function initMouseEventDM()
{
  var eo=document.getElementById("imevt");
  if( window.outerWidth == undefined )
  {
    eo.fireEvent("onclick");
  }
  else
  {
    var vo = document.createEvent("MouseEvent");
    vo.initMouseEvent("click", true, true, window, 0, 0, 0, 11, 22, true, false, false, false, 0, null);
    eo.dispatchEvent( vo );
  }
}
</script>
<a href='javascript:initMouseEventDM()'>点这里模拟onclick事件</a> / /
<span id='imevt' onclick='alert( xPos +" / "+ yPos +" / "+ event.ctrlKey)'>点我也可以的说</span>