[mechanical_fish]

Your story sounds… normal? This is how interviewing works, especially if you know what you want. It's a two-way street. Most jobs are pretty lousy, and even the great ones often don't fit you. You need to interview them and figure out whether or not their job is worth taking, then turn it down and move on.

(This is especially true for folks who program Javascript in 2012. It's a field in enormous flux.)

In many fields, it's normal for interviewing to take months. They warned us grad students to expect to spend a minimum of three to six months looking for Ph.D.-level jobs, because you tend to be searching among a fairly small pool of employers who are looking for folks with specialized training very similar to yours.