Why can't you just Create Multiple pictures for each part of the status bar? If it's a third just show a third of the status bar... it's very simple. You could probably figure out how to change it to the next picture based of input with the form tag. Here's my part of the code, you have to figure out the form stuff later
<form> <!--(extra code)-->
<!--first progress bar:-->
<img src="directory"></img>
<!--second progress bar:-->
<img src="directory"></img>
<!--et caetera...-->
</form>
Now it seems simple, doesn't it?