PHP question How to save a field

[topgun2004]

I watn fix a litle problem, on the button continue shoping, some times it doesn't back to rigth place, I all ready locate the problem, It's easy fix, but I don't know PHP.

I need to do this things

 

1.- get the URL (full path) on idex.php, products_new.php,specials.php,advanced_search_result.php, may others.. I have alredy the solution,

just adding this line $path_continue_button = HTTP_SERVER . $_SERVER['REQUEST_URI'];

inmediatly after the line application_bottom.php on this files

 

2.- save on the sesion $path_continue_button --- I don't now how to do (please php code)

 

3.- In application_top get the same var --- I don't now how to do (please php code)

 

4.- Change on the url (navigation bar) for this var on the button_continue_shopping.gif -- I know how to do

 

I really apresiate your help