The following was a handy piece of jscript commonly used in CRMv4.0 and CRMv3.0 to maximise a form to use the entire screen;

window.resizeTo(screen.availWidth, screen.availHeight); 

However, in Microsoft CRM2011, this has changed slightly and you must add ‘.top’ to your jscript web resource:,0);, screen.availHeight);

This can really help the end user reduce the number of mouse clicks and gives the maximum amount of screen real estate from a system customiser perspective.