SWF is not loading content from as classes after opening in any browser

Hello,

I have created a flash as3 project in flash professional cs5. It's working perfectly fine.

Structure of my project:

1 - I have a fla file which does not contain any code as the mostly developers do. But I have added some resoures in library to access them dynamically in as class files.

2- Now the fla file just gives the reference to the starting as class in "Class" field under Document properties.

2 - I compiled the project and just run the swf file and everything is working fine. Great. All project is tested that way.

Where the problem occurs:

1 - Before providing my project to my client I thought to test it on browsers.

2 - I also published the html file with swf file.

3 - Now when I open the html file either in chrome, IE or Firefox, nothing is being displayed on browsers' screen. Why. I don't know!. But its working fine when I run the swf file alone as I mentioned above.

So please help me out to run it on browsers.

Thanks in advance.

momersaleem