I'm trying to click on the "Search all flights" button in http://www.priceline.com/ but i'm having some problems.
I know that mechanize doesn't work with javascript so I tried so look on the source code trying to do what the button does but i can't find the function. There's any other way to do this?
Selenium or a similar library would be the best fit for you. It employs a full browser (Firefox, Chrome, etc.) and gives you a programmable API.
I suggest using
selenium
(download link), which has very heavy support for javascript. All docs here.Here is a quick example of how you can do that: