From c2701cd9f6ce10f7b92a997559e64ca7c516cd8c Mon Sep 17 00:00:00 2001
From: Tobi Oetiker <tobi@oetiker.ch>
Date: Mon, 20 Aug 2007 15:54:05 +0000
Subject: execute js code only if there is a #zoom image

---
 htdocs/js/smokeping_zoom.js | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/htdocs/js/smokeping_zoom.js b/htdocs/js/smokeping_zoom.js
index d06c867..df90e85 100644
--- a/htdocs/js/smokeping_zoom.js
+++ b/htdocs/js/smokeping_zoom.js
@@ -86,13 +86,12 @@ var    mySelectBottom  = 0;
   
 $(document).ready(function() { 
 
-
     var rrdimg   = jQuery("img#zoom");
- 
-    StartDateString = 0;
-    EndDateString  = 0;
-    jQuery('body',document).append('<div id="selector" oncontextmenu="return false"></div>')
-    var selector = jQuery("div#selector");
+    if (rrdimg.length){  // only do this if we actually have an zoom image
+      StartDateString = 0;
+      EndDateString  = 0;
+      jQuery('body',document).append('<div id="selector" oncontextmenu="return false"></div>')
+      var selector = jQuery("div#selector");
 
     selector.Selectable({
       opacity : 1,
@@ -112,8 +111,7 @@ $(document).ready(function() {
       padding: 0,
       'z-index':  1000
     });
- 
-
+   };
 });
 
 // will be started by modified iSelect (StopApply Function)
-- 
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