diff --git a/common.inc.php b/common.inc.php
index 3bba873..c801f47 100644
--- a/common.inc.php
+++ b/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)
diff --git a/images/16/button_cancel.gif b/images/16/button_cancel.gif
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diff --git a/images/16/edit.gif b/images/16/edit.gif
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diff --git a/images/16/edit.png b/images/16/edit.png
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