code: function(oControl, sDim){
  		var oProp = getPropertyInfo(oControl, sDim);
  		if (oProp) {
  			var val = oControl[oProp._sGetter]();
  			if (val && val.endsWith("%")) {
  				return val;
  			}
  		}
  		return null;
  	}
docs: Returns the value width or height property (depending of <code>sDim</code>) of the given
  control if the width or height is specified in %.
  
  @private