YAHOO.util.ImageLoader.pngBgImgObj
                                
                                        
                            
                        
                                    (
  
                                        
                                                
                                                domId
                                                , 
                                                url
                                                , 
                                                ailProps
                                    )
                                
                                - Parameters:
- 
                                                    domId <String>HTML DOM id of the image element
- 
                                                    url <String>URL for the image
- 
                                                    ailProps <Object>The AlphaImageLoader properties to be set for the image Valid properties are 'sizingMethod' and 'enabled'