function PreLoadImages() {
  var t='<layer top="-100" left="0" visibility="hide"><div style="position:absolute; top:-100px; left:0px; visibility:hidden">'
  for(i=0; i<arguments.length; i++) {
    t+='<img src="'+arguments[i]+'" height="10" width="10">'
  } 
  t+='</div></layer>'
  document.write(t)
}

function XPos(id) {
  ob = document.getElementById(id)
  //if (!ob) return null
	var left = 0
	if (ob.offsetParent) {
		while (ob.offsetParent) {
			left = left + ob.offsetLeft
			ob = ob.offsetParent
		}
	}	else {
    if (ob.x) left = ob.x
  }
	return left
}

function YPos(id) {
  ob = document.getElementById(id)
  //if (!ob) return null
	var top = 0
	if (ob.offsetParent) {
		while (ob.offsetParent) {
			top = top + ob.offsetTop
			ob = ob.offsetParent
		}
	}	else {
    if (ob.y) left = ob.y
  }
	return top
}

function ResizeImage(img) {
  if (!img) return false
  
  w = (img.innerWidth) ? img.innerWidth : img.clientWidth
  h = (img.innerHeight) ? img.innerHeight : img.clientHeight
  if (!w) return false
  if (!h) return false
  if (w > 570) {
    h = (570 * h) / w
    w = 570
  }
  if (h > 400) {
    w = (400 * w) / h
    h = 400
  }
  img.style.width = w + 'px'
  img.style.height = h + 'px'
}