You cannot use javascript variables in php, nor php variables in javascript, unless you write the variable to the page (for php -> javascript) or post to a new page with querystring or form (javascript -> php).
php -> javascript: <script language="JavaScript"> var jsVariable = "<?= $phpVariable ?>"; </script> javascript -> php: <script language="JavaScript"> // this is probably wrong javascript syntax, but you get the idea location.href = "thing.php?q=first+one&p=second+one"; </script> Adam > i know it has nothing to do with php but i'm stuck:) > > i have this url: > http://localhost/auction/seller/additems.php?category=Books&subcategory=Fiction > > and in javascript when i say for example alert(category) it gives me > undefined....doesn't javascript see variables passed with the url??? > > > Rehab M.Shouman