improved, possibly faster getelementsbyclass by willu

[ikiwiki.git] / IkiWiki / Plugin / toggle.pm

diff --git a/IkiWiki/Plugin/toggle.pm b/IkiWiki/Plugin/toggle.pm
index 284eb8249df031e77f2e1ff1796d19624bbae1cf..cd9617e259d5433f561faabb4719abc7756c8d75 100644 (file)
--- a/IkiWiki/Plugin/toggle.pm
+++ b/IkiWiki/Plugin/toggle.pm
@@ -39,18 +39,22 @@ function toggle(s) {
                style.display = "none";
 }
 
-function getElementsByClass(class) {
+function getElementsByClass(cls, node, tag) {
+       if (document.getElementsByClass)
+               return document.getElementsByClass(cls, node, tag);
+       if (! node) node = document;
+       if (! tag) tag = '*';
        var ret = new Array();
-       var pattern = new RegExp("(^|\\s)"+class+"(\\s|$)");
-       var els = document.getElementsByTagName('*');
-       for (i = 0, j = 0; i < els.length; i++) {
+       var pattern = new RegExp("(^|\\s)"+cls+"(\\s|$)");
+       var els = node.getElementsByTagName(tag);
+       for (i = 0; i < els.length; i++) {
                if ( pattern.test(els[i].className) ) {
-                       ret[j] = els[i];
-                       j++;
+                       ret.push(els[i]);
                }
        }
        return ret;
 }
+
 //-->
 </script>
 EOF