<form action="__URL__/add" method="post" name="form1" onsubmit="return isEmpty()">
<table cellpadding=3 cellspacing=5>
<tr>
<td width="10" align="center">ID</td>
<td width="80" align="center">排序</td>
<td width="80" align="center">内容</td>
<td width="80" align="center"> 操作 </td>
</tr>
<tr>
<td width="10" align="center">1</td>
<td width="80" align="center"><input type="text" name="nu"/></td>
<td width="80" align="center"><input type="text" name="content"/></td>
<td width="80" align="center"> 删除 </td>
</tr>
<tr></tr>
</table>
<hr>
<input type="submit" value="确定" />
</form>
<SCRIPT language=javaScript>
function isEmpty(){
var nu=document.form1.nu;
var content=document.form1.content;
if(nu.value==""){
alert("排序不能为空!");
return false;
}
if(content.value==""){
alert("内容不能为空!");
return false;
}
//return true;
}
</SCRIPT>