[gimp-web/testing] Prevent unnecessary reloads

[Michael Schumacher <schumaml src gnome org>]

commit 474240fdcb3b6fbb934f6407e68178095289502e
Author: Michael Schumacher <schumaml gmx de>
Date:   Wed Jul 29 01:00:31 2015 +0200

    Prevent unnecessary reloads

 includes/wgo.js |   12 +++++++-----
 1 files changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/includes/wgo.js b/includes/wgo.js
index dc13736..b9b22f5 100644
--- a/includes/wgo.js
+++ b/includes/wgo.js
@@ -26,15 +26,17 @@ function mangleforOpera() {
 //provide download page depending on OS
 function renderDownload(platform) {
 
-    $("#downloads").html("<div id=\"moreos\"></div>\n<div id=\"os\">&nbsp;</div>\n<hr />\n<div 
id=\"source\">&nbsp;</div>\n");
-    $("#moreos").html("Show downloads for <a href=\"javascript:renderDownload('oslinux');\">GNU/Linux</a>" +
+    if ( $("#downloads").is(':empty') ) {
+       $("#downloads").html("<div id=\"moreos\"></div>\n<div id=\"os\">&nbsp;</div>\n<hr />\n<div 
id=\"source\">&nbsp;</div>\n");
+       $("#moreos").html("Show downloads for <a 
href=\"javascript:renderDownload('oslinux');\">GNU/Linux</a>" +
                                       " | <a href=\"javascript:renderDownload('osmac');\">OS X</a>" +
                                       " | <a href=\"javascript:renderDownload('oswindows');\">Microsoft 
Windows</a>" +
                                       " | <a href=\"javascript:renderDownload('all');\">All</a>");
 
-    // always have all the divs
-    $("#os").html("<div id=\"oslinux\"></div>\n<div id=\"osmac\"></div>\n<div id=\"oswindows\"></div>\n");
-
+       // always have all the divs
+       $("#os").html("<div id=\"oslinux\"></div>\n<div id=\"osmac\"></div>\n<div id=\"oswindows\"></div>\n");
+    }
+       
     // decide which one to show
     if (platform == undefined) {
        platform    = "os" + $.browser.OS.toLowerCase();