挺简单的用js可以实现。代码如下:<div id=divtime stypt="display:none">日历控件</div><INPUT id="Text1" type="text" name="Text1" runat="server" onclick="javascript:SelTime()"><script language="javascript"> function SelTime() { var flag = document.all.item("divtime").style.display; if( "none" == flag) { document.all.item("divtime").style.display = "block"; } else { document.all.item("divtime").style.display = "none"; } } </script>