Little Javascript Modification

Hi: I have a casual game website that uses SWFObject script to serve the games from swf files, SWFObject works very well for me and I don't want change it, but now I want to add a preloader maked on javascript and integrated with actual SWFObject script. The preloader is a div that show some html while the swf file is loading or for some specific time (ex: 20 sec) and then its hidde itself. You can see my actual game page with SWFObject working on: [login to view URL] and a preloader like I want on: [login to view URL] (you can use the code of this page without problem because its a friend of mine) Also, some of the games are not server trough SWFObject (like Shockwave or iframe games) and for this games I need an stand alone version of this preloader (without SWFObject). Thanks.