Description:
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I have noticed a session data loss after visiting to a different site.

My site has PAYPAL payment option. I have $_SESSION["submit_data"] set properly when I am on my site, and its alive after navigating to different pages in my site. But for payment I need to leave my site and goes to PAYPALs site. After success or unsuccessful payment I return to my site.

But when I return to my site after PAYPAL payment, these SESSION variable $_SESSION["submit_data"] looses value in OPERA and Netsape Navigator browser, and $_SESSION["submit_data"] is not set. I noticed all my previous SESSION Info are lost in OPERA and NETSCAPE NAVIGATOR.

But FireFox and Internet Explorer Holds Data properly.

I used COOKIE also, made a try.. COOKIE DATA ALSO LOST.

If we visit different sites leaving the SESSION Originating site I think we looses SESSION Variables. Am I correct ???