defeating a flash intro page

Ok, we're putting up a new site for an existing site, but we've got an intro page that has a quick flash movie in it. Within the site, on every page, there is a link to the 'root' page (href="/"), which, in our case is index.php3 (of course <g>). The problem is that we don't want visitors to have to go through the flash intro every time they come back to / . So, I got to thinking of how to make this not happen. Well, it'd be easy with cookies, but not all surfers are like Cookie Monster. =) Then, when looking through the online manual for something else, I saw a reference to $HTTP_REFERER, and remembered using it in the past for something else. So, my simple solution was: --index.php3-- <?php if(!(eregi("yourdomain.com", $HTTP_REFERER))) { //display what you want on your flash page... virtual() would probably be even better though } else { //display what you'd normally get when you click on 'Skip Intro' on your flash page } ?> The reason I do the !(eregi() is to make it easier to add it to pages you've already got. Like... --index.php3-- <?php if(!(eregi("yourdomain.com", $HTTP_REFERER))) { //display what you want on your flash page... virtual() would probably be even better though } else { //display what you'd normally get when you click on 'Skip Intro' on your flash page ?> <i>here is some more html</i> <p>You see this after you click on 'Skip Intro' or when you link from another page somewhere on your site.</p> <?php } ?> I'm sure someone else can come up with a better regular expression (eg, like one to defeat a link from a search from yahoo)...something like (this is totally wrong...it ain't PHP, it's *pseudocode*, I'm tired, and, it's 1AM <g>): eregi("http://????.yourdomain.com", $HTTP_REFERER) where ???? could be any valid sequence of characters of various lengths in a URL so you could have links from sub-domain.yourdomain.com and www.yourdomain.com that would work as intended. Have fun with it, but test it before you use it in production. =) marco