Help me click a span in JS...

Job ID: 36153967

Budget: $10 – $30 USD

I know this is going to sound stupid, but I can't activate an event on a span in JS. It has an ID so one would think simply selecting it by its ID and el.click() should work but nope. Someone please help, I wasted over 3 hrs on this today.
Related categories: JavaScript jQuery / Prototype