Re-passing array varibles

I have a quite complex search form where I have multi select drop down menu..the form can be seen at http://www.bangladeshimatch.com/advance_search.php. I can pass the array variables from the form to another page to process the form without any problem, but when I try to pass the same array variables to the same page into a function for record navigation purposes I have problem, I tried to put the variables into sessions and it seemed worked fine on my local systems but not on the live site. I was wondering if someone came across same problem and how it was solved? Thanks in advance.. Awlad