Check 4 Change on a website that does not have text that can be highlighted.

Check 4 Change is a Mozilla Firefox plug-in that can be used to monitor websites for changes in any duration of time. You highlight text on a website and then use check 4 change to monitor that website for change. Once there is a change in the website detected, it will alert you by playing a sound and sending you an e-mail. However, this plug-in cannot be used to for events on www.axs.com. I want to be able to check [login to view URL] for changes as soon as every 5 seconds.