<script language="javascript" type="text/javascript"> function showhide() ...{ if(OaDoc.runtimeStyle.visibility=='visible') ...{ OaDoc.runtimeStyle.visibility='hidden' } else ...{ OaDoc.runtimeStyle.visibility='visible' } } </script><INPUT language="javascript" id="btnConfirm2" onclick="showhide()" type="button" value="上传" name="btnConfirm2"> 然后写上一个层, <DIV id="OaDoc" style="LEFT: 344px; VISIBILITY: hidden; WIDTH: 353px; POSITION: absolute; TOP: 377px; HEIGHT: 88px" align="center"> .............................. </DIV>