<script language=javascript>
function add()
{
var str="youname";
ZFL.zfl.value=str;
}
</script><form name=ZFL >
<input type=text name=zfl>
<input type=button value="清空">
<input type=button value="提交" onclick=add()></form>
function add()
{
var str="youname";
ZFL.zfl.value=str;
}
</script><form name=ZFL >
<input type=text name=zfl>
<input type=button value="清空">
<input type=button value="提交" onclick=add()></form>
<input type=text name="txtfreset" value="0" runat=server>
NOT id BUT name,I think.