He should know Php/mysql and ajax.
For the sample, he should submit the code of html which uses ajax(can be very simple one)
and the html which automatically redirects to other page after 2 minutes of user hasn't touched mouse or keyboard.
Anyone who will do it within that budget and that days, will be provided with the details.
12 freelancers are bidding on average $110 for this job
proficient with ajax/http and everything related. i hope i'm understanding correctly the sample you want, and sending you a private message with it. Would be pleased to meet you and discuss.
Hi, Our company has a PHP,OScommerce,AJAX and SEO expert. We can do your work within 30 min. My Bid Amount is : $20 Please let me know if you have any question. Regards, Anny