Thank you both,
Somehow after restarting, the .js showed up.
...and now I know of 2 ways(above mentioned) to resolve the issue if it is to reoccur.
...one point I should make.
I ran into this seemingly problem due to a really wierd behavior in Visual Studio 2008, where a .js file when clicked to be edited would show a tab but never show the code itself.
I assumed since the file association was wrong, somehow the file had been saved in an incompatible text mode.
I have now found out that the problem only arises when more than one .js file is brought into edit in a Visual Studio 2008/WIN 7 scenario?
CORRECTION: Even if a new Web App Project is created and 1 folder(includes) with one blank .js is added, it fails to show code and the environement start to misdraw the Solution Explorer pane... if I EXCLUDE the .js from the project... and (re) include it, I sometimes can get it to come up... anyhow the behavior is totally inconsistent.
Do you know of a forum like this one where I can bring up this issue?