<html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> </head><body> <form id="form1" runat="server"> 问题:当绿色的DIV显示出来后,鼠标移入DIV无事,再移到aaaa正上方的一小部分局域(就aaaa四个字母上方),DIV就关了,不知为何 <div style="margin:0px auto 0px auto; position:absolute;left:250px;top:250px;padding:20px; z-index:1;"> <asp:LinkButton ID="LinkButton1" onmouseover="over(this,document.all.se)" onmouseout="timer=setTimeout('out(document.all.se)',500)" OnClientClick="alert('left'+this.offsetLeft+';top'+this.offsetTop+';高'+this.offsetHeight+';宽'+this.offsetWidth);return false;" runat="server">M我</asp:LinkButton> </div> <div id="se" onmouseover="clearTimeout(timer);this.style.display='block'" onmouseout="out(this)" style=" background-color:#32ba5c; display:none; width:200px; position:absolute; padding:20px;"> <div >aaaa</div> <div >bbbb<input type="button" onclick="this.parentElement.parentElement.style.display='none'" value="关闭" /></div> <div>aaaa</div> <div>bbbb</div> <div>aaaa</div> <div>bbbb</div> </div> </form></body></html><script>... function over(obj,div) ...{ var rec=getoffset(obj); div.style.top=rec[0]+obj.offsetHeight; div.style.left=rec[1]; div.style.display="block"; } function out(div) ...{ div.style.display="none"; }function getoffset(e) ...{ var t=e.offsetTop; var l=e.offsetLeft; while(e=e.offsetParent) ...{ t+=e.offsetTop; l+=e.offsetLeft; } var rec = new Array(1); rec[0] = t; rec[1] = l; return rec } </script>