code: function image(oIcon) {
  				var oImage = new Image({
  					id: sDialogId + "--icon",
  					tooltip: rb && rb.getText("MSGBOX_ICON_" + oIcon),
  					decorative: true
  				});
  				oImage.addStyleClass("sapUiMboxIcon");
  				oImage.addStyleClass(mIconClass[oIcon]);
  				return oImage;
  			}
docs: creates an Image for the given icon type