// Detect if the browser is IE or not.
// If it is not IE, we assume that the browser is NS.
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
}

function scale(id){
	if (!IE) {
		var hoehe = 400;
	}
	else {
		var hoehe = 400;
	}
	var div = document.getElementById('scale');
	var obj = document.getElementById('vorherbig');
	obj.src = 'http://www.fitness-coach24.de/images/references/'+ id +'-b.jpg';
	obj.style.width = 150 + 'px';
	div.style.left = (tempX - 170) + "px";
	div.style.top = (tempY - hoehe) + "px";
}

function scalehide(){
	var div = document.getElementById('scale');
	var obj = document.getElementById('vorherbig');
	obj.src = '';
	obj.style.width = '';
	div.style.left = -1000 + 'px';
	div.style.top = -1000 + 'px';
}