总说缺少对象,是什么原因?如何改??关于swapimage
<%
String rootDirectory=(String)request.getContextPath();
%>
<body leftmargin="0" topmargin="0" onLoad="MM_preloadImages('<%=rootDirectory%>/image/intro_on.JPG')">
<table width="15.5%" height="100%" border=2 cellspacing=0 cellpadding=0 background=<%=rootDirectory%>/image/left.gif>
<tr>
<td height="30%"></td>
</tr>
<tr>
<td height="30%" valign=top align=right>
<a href="<%=rootDirectory%>/jsp/producer.jsp" onMouseOver="MM_swapImage('Image15','','<%=rootDirectory%>/image/intro_on.jpg',1)" onMouseOut="MM_swapImgRestore()"> //从<a>到这里
<img src="<%=rootDirectory%>/image/intro.jpg" alt="Summary" name="Image13" width="104" height="39" border="0">
</a>
</td>
</tr>
<tr>
<td height="30%" valign=top></td></tr>
</table>
</body>