Add images directory and size 16 icons dir

Update $config array to store the icon extension to use, based on whether MSIE or not.
  (IE cant do transparent PNG's, all other browsers can, so for IE, use GIF, else use PNG)

common.inc.php

@@ -19,6 +19,15 @@ while($r=mysql_fetch_object($q))
 	$config[$r->var]=$r->val;
 }
 
+//detect the browser first, so we know what icons to use - we store this in the config array as well
+//even though its not configurable by the fair
+if(stristr($_SERVER['HTTP_USER_AGENT'],"MSIE"))
+	$config['icon_extension']="gif";
+else
+	$config['icon_extension']="png";
+
+
+
 //now get the languages, and make sure we have at least one active language
 $q=mysql_query("SELECT * FROM languages WHERE active='Y' ORDER BY langname");
 if(mysql_num_rows($q)==0)