crossbrowser fixes for quicksearch shortening FS#2660

fixes the problem with missing innerText in Firefox (and other browsers)
and corrects shortening in regard to paddings and the use of the
text-overflow attribute

lib/scripts/qsearch.js

@@ -92,12 +92,18 @@ var dw_qsearch = {
             .show()
             .css('white-space', 'nowrap');
 
-        // shorten namespaces if too long
-        max = dw_qsearch.$outObj[0].clientWidth;
+        // disable overflow during shortening
+        dw_qsearch.$outObj.find('li').css('overflow', 'visible');
+
         $links = dw_qsearch.$outObj.find('a');
-        too_big = (document.documentElement.dir === 'rtl')
-                  ? function (l) { return l.offsetLeft < 0; }
-                  : function (l) { return l.offsetWidth + l.offsetLeft > max; };
+        max    = dw_qsearch.$outObj[0].clientWidth; // maximum width allowed (but take away paddings below)
+        if(document.documentElement.dir === 'rtl'){
+            max -= parseInt(dw_qsearch.$outObj.css('padding-left'));
+            too_big = function (l) { return l.offsetLeft < 0; };
+        }else{
+            max -= parseInt(dw_qsearch.$outObj.css('padding-right'));
+            too_big = function (l) { return l.offsetWidth + l.offsetLeft > max; };
+        }
 
         $links.each(function () {
             var start, length, replace, nsL, nsR, eli, runaway;
@@ -106,6 +112,12 @@ var dw_qsearch = {
                 return;
             }
 
+            // make IE's innerText available to W3C conform browsers
+            if(this.textContent){
+                this.__defineGetter__('innerText', function(){ return this.textContent });
+                this.__defineSetter__('innerText', function(val){ this.textContent = val });
+            }
+
             nsL = this.innerText.indexOf('(');
             nsR = this.innerText.indexOf(')');
             eli = 0;
@@ -138,6 +150,9 @@ var dw_qsearch = {
                 nsR = this.innerText.indexOf(')');
             }
         });
+
+        // reenable overflow
+        dw_qsearch.$outObj.find('li').css('overflow', 'hidden').css('text-overflow','ellipsis');
     }
 };