best way to detect mouseover?

Hey,

Once again a **** question - I've played with using the Message_handler thing - but i cant really get it to properly detect my mouseover. Am I doind this right? Could anyone help me out a little with how I should go about detecting the mouse hover over an overlay ?

Thanks alot

(I guess I'm not supposed to metion that I'm new - see asterisks above)

#334565