function GCComputeSizing(GCObject)
    {
    if (TestGCObject(GCObject))
    {
      var fBIDI=(document.documentElement.currentStyle.direction=="rtl");
      var lGCWindowWidth=document.documentElement.scrollWidth;
      var lGCWindowHeight=(document.documentElement.scrollHeight>document.documentElement.clientHeight) ? document.documentElement.clientHeight : document.documentElement.scrollHeight;

      var lGCObjectOffsetLeft=0;
      var lGCObjectOffsetTop=0;
      if (fBIDI)
       {
       lGCObjectOffsetLeft=-180;
       lGCObjectOffsetTop=120;
       }
      else
       {
       lGCObjectOffsetLeft=32;
       lGCObjectOffsetTop=-2;
       }
      var lGCObjectWalker=GCObject.parentElement;
      while (lGCObjectWalker !=document.body)
      {
       lGCObjectOffsetLeft+=lGCObjectWalker.offsetLeft;
       lGCObjectOffsetTop+=lGCObjectWalker.offsetTop;
       lGCObjectWalker=lGCObjectWalker.offsetParent;
       if (fBIDI)
        if (lGCObjectWalker.offsetLeft > 0)
         break;
      }
      lGCObjectOffsetLeft+=GCObject.parentElement.offsetLeft;
      lGCObjectOffsetTop+=GCObject.parentElement.offsetTop;
      glGCObjectHeight=lGCWindowHeight - lGCObjectOffsetTop;
      if (glGCObjectHeight > lGCWindowHeight)
       glGCObjectHeight=lGCWindowHeight
      if (glGCObjectHeight < cGCMinimumHeight)f
       glGCObjectHeight=cGCMinimumHeight;
      if (fBIDI)
       {
       glGCObjectWidth=lGCWindowWidth+lGCObjectOffsetLeft;
       }
      else
       glGCObjectWidth=lGCWindowWidth - lGCObjectOffsetLeft;
      if (glGCObjectWidth > lGCWindowWidth)
        glGCObjectWidth=lGCWindowWidth;
      if (glGCObjectWidth < cGCMinimumWidth)
       glGCObjectWidth=cGCMinimumWidth;
    }
    }