(bug 16459) Use native getElementsByClassName

[lhc/web/wiklou.git] / skins / common / wikibits.js

diff --git a/skins/common/wikibits.js b/skins/common/wikibits.js
index 3a1cea9..15cc995 100644 (file)
--- a/skins/common/wikibits.js
+++ b/skins/common/wikibits.js
@@ -454,8 +454,19 @@ function toggle_element_check(ida,idb) {
        From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
 */
 function getElementsByClassName(oElm, strTagName, oClassNames){
-       var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
        var arrReturnElements = new Array();
+       if ( typeof( oElm.getElementsByClassName ) == "function" ) {
+               /* Use a native implementation where possible FF3, Saf3.2, Opera 9.5 */
+               var arrNativeReturn = oElm.getElementsByClassName( oClassNames );
+               if ( strTagName == "*" )
+                       return arrNativeReturn;
+               for ( var h=0; h < arrNativeReturn.length; h++ ) {
+                       if( arrNativeReturn[h].tagName.toLowerCase() == strTagName.toLowerCase() )
+                               arrReturnElements[arrReturnElements.length] = arrNativeReturn[h];
+               }
+               return arrReturnElements;
+       }
+       var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
        var arrRegExpClassNames = new Array();
        if(typeof oClassNames == "object"){
                for(var i=0; i<oClassNames.length; i++){