var url_array = new Array();
          var img_array = new Array();
          var descr_array = new Array();
          var type_array = new Array();
          var img_type = '140x180';
          var num_products = 0;
         
          function add_product(url, img, descr, type_descr)
          // fill global arrays with new product data
          {
            url_array[num_products] = url;
            img_array[num_products] = img;
            descr_array[num_products] = descr;
            type_array[num_products] = type_descr;
            num_products++;
          }
        
        add_product("go.php?prod_id=aawplus&action=buy", "images/aawplus_140x180.jpg", "Ad-Aware Plus Edition", "Anti-Spyware");
add_product("go.php?prod_id=aawpro&action=buy", "images/aawpro_140x180.jpg", "Ad-Aware Professional Edition", "Anti-Spyware");
add_product("go.php?prod_id=avast_is&action=buy", "images/avast-is-140x180.png", "avast! Internet Security", "Internet Security");
add_product("go.php?prod_id=avast_pro&action=buy", "images/avast-av-pro-140x180.png", "avast! Professional", "Anti-Virus");
add_product("go.php?prod_id=avgav&action=buy", "images/avgav-140x180.png", "AVG Anti-Virus", "Anti-Virus");
add_product("go.php?prod_id=avgavfw&action=buy", "images/avgavfw_140x180.jpg", "AVG Anti-Virus+Firewall", "Anti-Virus");
add_product("go.php?prod_id=avgis&action=buy", "images/avgis-140x180.png", "AVG Internet Security", "Internet Security");
add_product("go.php?prod_id=bdis&action=buy", "images/bitdefender_is-140x180.png", "Bitdefender Internet Security", "Internet Security");
add_product("go.php?prod_id=kav&action=buy", "images/kav-140x180.png", "Kaspersky Anti-Virus", "Anti-Virus");
add_product("go.php?prod_id=kis&action=buy", "images/kis-140x180.png", "Kaspersky Internet Security", "Internet Security");
add_product("go.php?prod_id=lpfw&action=buy", "images/lavasoft_pfw_140x180.jpg", "Lavasoft Personal Firewall", "Firewall");
add_product("go.php?prod_id=mailwasherpro&action=buy", "images/mailwasherpro-180x150.jpg", "MailWasher PRO", "Anti-Spam");
add_product("go.php?prod_id=outpost-fw-pro&action=buy", "images/outpost-fw-pro-140x180.png", "Outpost Firewall Pro", "Firewall");
add_product("go.php?prod_id=ossp&action=buy", "images/agnitum-ossp-140x180.png", "Outpost Security Suite Pro", "Internet Security");
add_product("go.php?prod_id=pcpandora&action=buy", "images/pc-pandora-box-140x180.png", "PC Pandora", "Parental Control");
add_product("go.php?prod_id=spambully&action=buy", "images/spambully-140x180.png", "Spam Bully", "Anti-Spam");
add_product("go.php?prod_id=spamfighterpro&action=buy", "images/spamfighter-pro-7-220x200.gif", "SPAMfighter PRO", "Anti-Spam");
add_product("go.php?prod_id=zapro&action=buy", "images/zapro-140x180.png", "ZoneAlarm Pro", "Firewall");