Progress Bar in the HTML5 Games

Can someone please help with fixing the progress bar once the HTML5 game is loaded. I have no knowledge of HTML,CSS or Javascript. I’ve been altering the HTML file for a week now, I can’t seem to get the progress bar to work properly.

The bar goes from 0 to 100 and then stays there till the game is loaded. Other options like the loading progress being displayed as a number would also be great.