sessions problem, need help

Hello, I'm new to sessions and I know a little php, but don't use it enough to remember it. I'm trying to use sessions for a couple of reasons. I will explain as i go along. My index.html is this (www.loveobjects.com) <-not porn my host uses version 4.0.6 <html> <head> <script language="javascript"> <!-- var cWidth=0, cHeight=0; fsize=12; function clientSize() {

  if( typeof( window.innerWidth ) == 'number' ) {         //Non-IE
    cWidth = window.innerWidth;
    cHeight = window.innerHeight;

} else {

        if( document.documentElement &&
            ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {        //IE 6+ in 'standards compliant mode'
              cWidth = document.documentElement.clientWidth;
              cHeight = document.documentElement.clientHeight;
        }
        else {
              if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {           //IE 4 compatible
                     cWidth = document.body.clientWidth;
                     cHeight = document.body.clientHeight;
              }
        }

} location.replace('http://www.loveobjects.com/test_1.php?w='+cWidth+'&h='+cHeight+'&fSize='+fsize); } --> </script> </head> <body bgcolor="#006666"; onload="javascript:clientSize();"></body> </html> You can see that it gets the client window size and sets a default font size, then redirects, sending along the vars in the url string. The test_1.php looks like this. <?php session_start(); header("Cache-control: private"); $HTTP_SESSION_VARS['width'] = $HTTP_GET_VARS['w']; $HTTP_SESSION_VARS['height'] = $HTTP_GET_VARS['h']; $HTTP_SESSION_VARS['fontS'] = $HTTP_GET_VARS['fSize']; $HTTP_SESSION_VARS['fontC'] = $HTTP_GET_VARS['cFont']; $HTTP_SESSION_VARS['id'] = session_id(); header("Location: http://www.loveobjects.com/test_2.php?id=".$HTTP_SESSION_VARS['id']); ?> But, this gives me a 404. I've tried to use a link instead of the header() such as: print("<a href=\"/test_2.php?id=".$HTTP_SESSION_VARS['id'].">this</a>"); Which will create <a href="./test_2.php?id=b5c93c1f165018cda39d0d751d27d368>this</a> and show in the status bar as http://www.loveobjects.com/test_2.php?id=b5c93c1f165018cda39d0d751d27d368 but this gives me a 404 too. (The _ is there in test_2.php. in the above line. You just don't see it with the whole link underlined). I don't want to pass along the client and font vars by means of the GET vars to test_2.php. I want them in the session vars. I want to be able to change the font size, or let the user change the font size. And I don't want a font size var hanging around in the url string. I also want to limit what info and be bookmarked. I also don't want to rely on cookies to send the session id and other stuff. test_2.php looks like this: <?php session_start(); header("Cache-control: private"); require($_SERVER["DOCUMENT_ROOT"] . "Pagemaker.class"); $pagemaker = new Pagemaker; $pagemaker->set_fontsize($HTTP_SESSION_VARS['fontC'],$HTTP_SESSION_VARS['FontC']); $pagemaker->set_stdwidth($HTTP_SESSION_VARS['width']); $pagemaker->set_stdheight($HTTP_SESSION_VARS['height']); $pagemaker->find("test_1"); //print($pagemaker->Errno); print($pagemaker->Error); print($pagemaker->haltmsg); print($pagemaker->contents); ?> Pagemaker.class worked before I started wwith all this session stuff. (with different code ofcourse) Please help. Any suggestions will be helpful. Thanks Noel