Drag resize of widgets broken in IE

[navrkal.pavel]

1. SmartGwt 8.1p_2013-02-04. Previous few builds doesn't work too.

2. IE (9,8,7). FF and chrome are OK.

3. Sample code from DragResize showcase:

import com.smartgwt.client.types.Alignment;  
import com.smartgwt.client.types.DragAppearance;  
import com.smartgwt.client.widgets.Canvas;  
import com.smartgwt.client.widgets.Label;  
  
import com.google.gwt.core.client.EntryPoint;  
  
public class DragResizeSample implements EntryPoint {  
  
    public void onModuleLoad() {  
          
        Canvas canvas = new Canvas();  
          
        DragLabel resizeAny = new DragLabel();  
        resizeAny.setLeft(80);  
        resizeAny.setTop(80);  
        resizeAny.setContents("Resize from any side");  
        resizeAny.setCanDragResize(true);  
        resizeAny.setEdgeMarginSize(10);  
        canvas.addChild(resizeAny);  
          
        DragLabel resizeBR = new DragLabel();  
        resizeBR.setLeft(280);  
        resizeBR.setTop(80);  
        resizeBR.setContents("Resize from bottom or right");  
        resizeBR.setCanDragResize(true);  
        resizeBR.setResizeFrom("B","R","BR");  
        resizeBR.setEdgeMarginSize(10);  
        canvas.addChild(resizeBR);  
          
        canvas.draw();  
    }  
  
    public static class DragLabel extends Label {  
        public DragLabel() {  
            setAlign(Alignment.CENTER);  
            setPadding(4);  
            setShowEdges(true);  
            setMinWidth(70);  
            setMinHeight(70);  
            setMaxWidth(300);  
            setMaxHeight(200);  
            setKeepInParentRect(true);  
            setCanDragReposition(true);  
            setDragAppearance(DragAppearance.TARGET);  
        }  
    }  
  
}