JS：
<html>
<head>
<script>
function submitit1()
//交由程序1处理
{
document.myForm.action = "http://www.site.com/cgi1.php"
document.myForm.submit();
}
function submitit2()
//交由程序2处理
{
document.myForm.action = "http://www.site.com/cgi2.php"
document.myForm.submit();
}
</script>
</head>
<body>
<form name="myForm" METHOD=POST>
username:<input type=text name=text1>
password:<input type=password name=text2>
<input type=button value="Submit1" onClick=submitit1();>
<input type=button value="Submit2" onClick=submitit2();>
</form>
</body>
</html>
PHP：
<?php
echo "$sub<br>
";
if ("s1"==$sub)
{
...
}
else if ("s2"==$sub)
{
...
}
?>
<html>
<head><title></title></head>
<body>
<form action="<?php print("$PHP_SELF"); ?>" method="get">
<input type="submit" name="sub" value="s1">
<input type="submit" name="sub" value="s2">
</form>
</body>
</html>
?>