一个Action如何调用两个不同的方法

<Script Language="javascript">
function modify()
{
document.form1.action="modify.jsp";
document.form1.submit();
}


function delete()
{
document.form1.action="delete.jsp";
document.form1.submit();
}
</Script>

<form name="form1" action="">
<INPUT Type="Button" Name="Modify" value="修 改 " onClick="modify()">
<INPUT Type="Button" Name="Delete" value="删 除 " onClick="delete()">
</form>