function gfx($random_num) {


   global $prefix, $db, $module_name;


   require("config.php");


   $datekey = date("F j");


   $rcode = hexdec(md5($_SERVER[HTTP_USER_AGENT] . $sitekey . $random_num . $datekey));


   $code = substr($rcode, 2, 6);


   # $image = ImageCreateFromJPEG("modules/$module_name/images/code_bg.jpg");


   Header("Content-type: image/jpeg");





   $image = ImageCreate(100,20);





   $white=ImageColorAllocate($image,255,255,255);


   ImageFilledRectangle($image,0,0,100,20,$white);





   for ($cnt=0; $cnt<12; $cnt++) {


      $text_color = ImageColorAllocate($image, intval(rand(200,255)), intval(rand(200,255)), intval(rand(200,255)));





      # Depending on your PHP use one of imageellipse or imagearc


      #ImageEllipse($image,($cnt*8),10,intval(rand(15,30)),intval(rand(15,30)), $text_color);


      ImageArc($image,($cnt*8),10,intval(rand(15,30)),intval(rand(15,30)),0,360, $text_color);


   }





   for ($idx=0; $idx<6; $idx++) {


      $text_color = ImageColorAllocate($image, intval(rand(0,128)), intval(rand(0,128)), intval(rand(0,128)));


      $text_color1 = ImageColorAllocate($image, intval(rand(0,128)), intval(rand(0,128)), intval(rand(0,128)));


      ImageString ($image, intval(rand(1,5)), 12+($idx*14), 2, substr($code,$idx,1), $text_color);


      ImageString ($image, intval(rand(1,5)), 11+($idx*14), 2, substr($code,$idx,1), $text_color1);


   }





   ImageJPEG($image, '', 75);


   ImageDestroy($image);


   die();


}