ajax Post not working

[Nivec]

Hi all,

I have a script that does the following:

$.ajax({
	type: 'POST', url: './misc.php',
	data: { 'do': 'cloc',
	'action': 'updatevp',
	'X': X,
	'Y': Y}
})

Then in the Plugin, hook ?misc_start?, I have:

if($_REQUEST['do'] == 'cloc') {

	switch($_REQUEST['action']) {
		case ' updatevp':
			$vbulletin->db->query_write("UPDATE MyCustomTable SET X = {$vbulletin->input->clean_gpc('r', 'X', TYPE_NUM)}, Y = {$vbulletin->input->clean_gpc('r', 'Y', TYPE_NUM WHERE fkiUserID = {$vbulletin->userinfo['userid']}");
	 break;
              }
}

It works fine if do this:

$.ajax('./misc.php?do=cloc&action=updatevp&X=' + X + '&Y=' + Y)

Why can I not ?POST? it?

I am creating or at least trying to create my first pluging, so all this is a little new to me, am I missing something simple?

Thanks