var IE = document.all?true:false

if (!IE) document.captureEvents(Event.MOUSEMOVE)

document.onmousemove = getMouseXY;

var tempX = 0
var tempY = 0

function getMouseXY(e) {
  if (IE) {
    tempX = event.clientX + document.body.scrollLeft
    tempY = event.clientY + document.body.scrollTop
  } else {
    tempX = e.pageX
    tempY = e.pageY
  }
  // catch possible negative values in NS4
  if (tempX < 0){tempX = 0}
  if (tempY < 0){tempY = 0}
  return true
}