<script language="javascript">
var i=1;
do until i>10
if (eval("document.form1.id"+i).value="")
{alert ("改值不能为空!");
return(false);
}
</scirpt>
var i=1;
do until i>10
if (eval("document.form1.id"+i).value="")
{alert ("改值不能为空!");
return(false);
}
</scirpt>
即eval(document.form1.sid).value
var i=1;
do until i>10
sid="id"+i
if (eval("document.form1."+sid+".value=''"))
{alert ("改值不能为空!");
return(false);
}
</scirpt>