How do I get the position of a mouse within a div when I'm getting events from mousemove? If it helps, I'm already including dimensions.js for the myriad extensions that want it. I understand that I can get pageX or clientX but what I want is X inside that DIV where I have mousemove tracking on..
I want to make sure I'm getting (0,0) rock solid in the upper left corner of that div in all cases.
