通过坐标获得元素

 1.<mce:script type="text/javascript"><!-- document.onmousemove = function(e){ var e = e || window.event; document.getElementById('odiv').innerHTML = (e.srcElement || e.target).nodeName }// --></mce:script>2.document.onmousemove=function(e) { e=e || window.event; document.title=document.elementFromPoint(e.clientX,e.clientY).nodeName;}