// Detect if the browser is IE or not.	
var IE = document.all?true:false

// If NS -- that is, !IE -- then set up for mouse capture
if (!IE) document.captureEvents(Event.MOUSEMOVE)

// Set-up to use getMouseXY function onMouseMove
document.onmousemove = getMouseXY;

// Temporary variables to hold mouse x-y pos.s
var tempX = 0
var tempY = 0

// Main function to retrieve mouse x-y pos.s	
function getMouseXY(e) {
  if (IE) { // grab the x-y pos.s if browser is IE
	 tempX = event.clientX + document.body.scrollLeft
	 tempY = event.clientY + document.body.scrollTop
  } else {  // grab the x-y pos.s if browser is NS
	 tempX = e.pageX
	 tempY = e.pageY
  }  
  // catch possible negative values in NS4
  if (tempX < 0){tempX = 0}
  if (tempY < 0){tempY = 0}  
  
  return true
}