         var targetHeight:Number = Math.max(0, layoutTarget.height - paddingTop - paddingBottom);
         
         var layoutElement:ILayoutElement;
-        var count:uint = layoutTarget.numElements;
+        var count:int = layoutTarget.numElements;
         
         // If verticalAlign is top, we don't need to figure out the contentHeight.
         // Otherwise the contentHeight is used to position the element and even size 

     */
    private function measureVirtual(layoutTarget:GroupBase):void
    {
        var eltCount:uint = layoutTarget.numElements;
        var measuredEltCount:int = (requestedColumnCount != -1) ? requestedColumnCount : 
                                                                  Math.max(requestedMinColumnCount, eltCount);
        

        
        // columnWidth can be expensive to compute
        var cw:Number = (variableColumnWidth) ? 0 : Math.ceil(columnWidth);
        var count:int = target.numElements;
        var totalCount:int = count; // number of elements to use in gap calculation
        
        // If the child is flexible, store information about it in the
        // childInfoArray. For non-flexible children, just set the child's
