writing banner exchange script

[Anon]

hey! im having some difficulties with the banner exchange script im writing. i'm done with the part of the script that shows random banner and only now i realized that i dont know how to make people who click on it go to the proper URL... lol. thats how im thinking it all should work:

<a href="www.mysite.com/goto_url.php"><img src="www.mysite.com/showbanner.php"></a>

i got showbanner.php finished. it works. it shows random banners without any probs. now how do i make goto_url.php work? how it would know what banner showbanner.php displayed or what URL users are supposed to go when they click on the banner?

please help! thank you!

[Anon]

probably the best solution is the host that portion of the code on your own server and have the webmasters of these site include it into there page via Java.

That is probably the best way to achieve this.

I can't really see a way of doing what you want with accuracy. Because you never know how long it would take before someone actually clicked on the banner, and a time base system sounds like the only feasible solution.

You could also try looking into the possibilty of identifyers and store IP address of all the poeple who requested the Banner and then assign an id in a table that could be set to flag your clickthru.php script the id it needs to send them to the proper page, but if you expect this to get large that might get a little messy.

Just some thoughts though.

[Anon]

THANK YOU for the answer! 🙂

i knew it would not be easy 🙁

do you think there is a way to find out image's creation date using JS? that might be one of the possible solutions. the script that generates an image could pass Last-Modified header to the browser, which in fact would be an ID... im not too good with JS, so i dont know if its possible though...