The “onmousemove” event can help you make sure that your script runs as well as your cursor on the form I’ll give you a brief example of its usage. We want to trap the cursor’s coordinates as it moves in a certain entity’s form in CRM.
Add the following code on the OnLoad() event of a form you want:
document.onmousemove = function() {
window.status = event.clientX + “x”+event.clientY;
}
Of course, you may attach the “onmousemove” event to the crmForm too, using:
crmForm.onmousemove = function() {
window.status = event.clientX + “x”+event.clientY;
}
But this way, your status will update only if your cursor moves inside the crmForm, not in the entire window like in our first example.
Ok.. I’m gonna say it
This is for IE only.. to make it cross-browser things tend to complicate 
Well, Microsoft Dynamics CRM is made for IE, not firefox, safari etc. That’s why I don’t complicate things