code: public void setImageUrlAttribute(String name, String value) {
  		ensureValue();
  		Attribute attribute = new ImageUrlAttribute(value);
  		attribute.setEditable(isEditable(name));
  		getValue().getAllAttributes().put(name, attribute);
  	}
docs: Sets the specified image URL attribute to the specified value.
  
  @param name name of the attribute
  @param value value of the attribute
  @since 1.9.0