<input type="button" name="" value="保存" onclick="JS_a('保存')">
<input type="button" name="" value="提交" onclick="JS_a('提交')">
<form name="fomr_a">
<input name="b" value="1">
</form>
<script>
function JS_a(var01)
{
if(var01=="保存")
{
document.all.fomr_a.action="<?=$PHP_SELF?>";
document.all.fomr_a.submit();
}if(var01=="提交")
{
document.all.fomr_a.action="b.php";
document.all.fomr_a.submit();
}
}
</script>