watch a website & fill in a form...

I don't know how this will be done... but this is what I need. In order for me to get my jobs, I log onto a website and watch it. When a job comes up it will appear on the screen. I click a checkbox and hit a submit button (on the website) then an okay button, a finally a continue button (these two are in pop-up boxes. I want to animate this process because I can't sit and watch the website all day for jobs to come up. I want something that will watch the website, notice when a job comes up; check the check box, then "submit", "okay" and "Continue". all by itself. I come back and the jobs are already reserved. Oh, here is the catch. I need this... program to monitor 4-5 different websites. Let me explain, I log onto... www.something.com. Put in my user name and password and pick a location... then sit and watch for jobs. The catch is that I have to monitor 4-5 locations... at the same time... then have the program check the box and click the buttons. I know this can be done, I just don't know how. I have been told that it's a really simple thing. Please feel free to ask a bunch of questions. I will try to answer. When we work all this out I can give you the actual website, but I want this kept confidential.