I give up - inserting flash [resolved]

[Acidic]

I havd used this code:

print "<br /><br />\n<object
classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' 
codebase='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0'
width='400' height='300' id='movie'>
<param name='movie' value='flash/".$pre.$a.".swf'>
</object>";

This validates fine, but I just realised that the site doesn't actually display the flash file. It's not a PHP error. How do you insert a flash file with the page validating?

edit: I've realised that it does display it in IE but not in FireFox. So the question stil stands