Ajax Mouse-over information harvesting

I am working with a web site that provides a lot of information about the displayed links in boxes that appear in a “mouse over??. An example of the web page source code is: onMouseOver="LoadXajaxData('4201e08560cd46c2dbdeff16d85df447','WE','FXVYHPLxVZS1N8d9CM5bgQPKgC2s2Rjk','0','2')" The web site runs Ajax. I need an application that can run through every “onMouseOver?? in a web page and save the information displayed in the popup box into a text file on my computer. This is a one-off use so I need very little user interface for my application. For example all the text can be saved in a fixed file name. I use the Firefox browser most of the time. The application may need to interface to or be added into that browser.