Cookies and Browser Detection

[EZE]

For my website, I have been added javascript to detect if the viewer is using firefox or not, and it displays a confirm box message to take them to download firefox or click cancel to close the prompt. This would get pretty annotying, so I researched cookies and php a bit, and I came up with this in total:  [code]<?
if ($_COOKIE["browser"]){
echo "<!--Thank You For Choosing Firefox! -->";
}
else{
setcookie("browser");
echo "<script type=\"text/javascript\">
if(navigator.userAgent.indexOf('Firefox')!=-1){
}
else {
if (confirm('You are using a internet browser other than Firefox. It is recomended that you use Firefox to view this website, for some elements may show up incorrect or not function at all. Click Ok to get the newest version of Firefox, or click cancel to hide this prompt.')== true){
window.location='http://www.mozilla.com/en-US/firefox/';
}
}
</script>";
}
?>[/code] The confirm box comes up either way on IE7, but no php errors occur, did I miss-use the $_COOKIE pre-defined variable? I'm pretty sure it has something to do with that. Could someone plz help?

[EZE]

Never mind, I figured it out.

[i][b]fenway: How?[/b][/i]