How to get a swf name of a DOMElement object?

Question

Now I have detect a swf url and DOMElement object in a webpage , but I still want to know the swf name , I think that the name is not regular using url, and the name will using the DOMElement , but How to get the name of it ? Just like this method :

- (id)sb_initWithFrame:(NSRect)frame pluginPackage:(id)pack URL:(id)url baseURL:(id)base MIMEType:(id)mime attributeKeys:(id)attr attributeValues:(id)attrval loadManually:(id)manual DOMElement:(id)dom

I can detect a swf url from page , but how to get the name of the swf , and I think most of swf url using the end:.swf , but some of them are not like that , I think maybe it will be get from the argu:dom, but how to get it , thank you very much !