Sessions?

I'm used to building pages that contain links that have variables passed on the URL (somepage.php?var1=1&var2=2...) and I'm now looking into building a site that will have quite a bit of these that will have to 'live' from page to page, occasionally getting reset, or changed by new page. I'm told sessions are the way to go (specially since this will have several users using the site). And consequently, now I'm lost. Sessions..okay..how does the variable 'live' from one to the other? What do I have to do different when setting variables that will be used globally across the site (and reset/changed from time to time)? I don't need to STORE any of these (say for a future log-in), however if it's easy (easier?) to do it that way, that's fine as well. I may eventually start making the site customizable on a per user basis. But for right now, I need a startup primer first. AMK4 -- W | | I haven't lost my mind; it's backed up on tape somewhere. |____________________________________________________________________ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ashley M. Kirchner <mailto:ashley@pcraft.com> . 303.442.6410 x130 SysAdmin / Websmith . 800.441.3873 x130 Photo Craft Laboratories, Inc. . eFax 248.671.0909 http://www.pcraft.com . 3550 Arapahoe Ave #6 .................. . . . . Boulder, CO 80303, USA