self.onError=null; 
currentX = currentY = 0;  
whichIt = null;      
lastScrollX = 0; lastScrollY = 0; 
NS = (document.layers) ? 1 : 0; 
IE = (document.all) ? 1: 0; 
<!-- STALKER CODE --> 
function heartBeat() { 
if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; } 
  if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; } 
if(diffY != lastScrollY) { 
        percent = .1 * (diffY - lastScrollY); 
        if(percent > 0) percent = Math.ceil(percent); 
        else percent = Math.floor(percent); 
if(IE) document.all.floater.style.pixelTop += percent; 
if(NS) document.floater.top += percent; 
        lastScrollY = lastScrollY + percent; 
  } 
if(diffX != lastScrollX) { 
percent = .1 * (diffX - lastScrollX); 
if(percent > 0) percent = Math.ceil(percent); 
else percent = Math.floor(percent); 
if(IE) document.all.floater.style.pixelLeft += percent; 
if(NS) document.floater.left += percent; 
lastScrollX = lastScrollX + percent; 
} 
} 
<!-- /STALKER CODE --> 
<!-- DRAG DROP CODE --> 
function checkFocus(x,y) { 
    stalkerx = document.floater.pageX; 
    stalkery = document.floater.pageY; 
    stalkerwidth = document.floater.clip.width; 
    stalkerheight = document.floater.clip.height; 
    if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < 
(stalkery+stalkerheight))) return true; 
    else return false; 
} 
function grabIt(e) { 
if(IE) { 
whichIt = event.srcElement; 
while (whichIt.id.indexOf("floater") == -1) { 
whichIt = whichIt.parentElement; 
if (whichIt == null) { return true; } 
  } 
whichIt.style.pixelLeft = whichIt.offsetLeft; 
  whichIt.style.pixelTop = whichIt.offsetTop; 
currentX = (event.clientX + document.body.scrollLeft); 
  currentY = (event.clientY + document.body.scrollTop); 
} else { 
    window.captureEvents(Event.MOUSEMOVE); 
    if(checkFocus (e.pageX,e.pageY)) { 
        whichIt = document.floater; 
        StalkerTouchedX = e.pageX-document.floater.pageX; 
        StalkerTouchedY = e.pageY-document.floater.pageY; 
    } 
} 
  return true; 
} 
function moveIt(e) { 
if (whichIt == null) { return false; } 
if(IE) { 
  newX = (event.clientX + document.body.scrollLeft); 
  newY = (event.clientY + document.body.scrollTop); 
  distanceX = (newX - currentX);  distanceY = (newY - currentY); 
  currentX = newX;  currentY = newY; 
  whichIt.style.pixelLeft += distanceX; 
  whichIt.style.pixelTop += distanceY; 
if(whichIt.style.pixelTop < document.body.scrollTop) whichIt.style.pixelTop = 
document.body.scrollTop; 
if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = 
document.body.scrollLeft; 
if(whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - 
whichIt.style.pixelWidth - 20) whichIt.style.pixelLeft = document.body.offsetWidth - 
whichIt.style.pixelWidth - 20; 
if(whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - 
whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + 
document.body.scrollTop - whichIt.style.pixelHeight - 5; 
event.returnValue = false; 
} else { 
whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY); 
    if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset; 
    if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset; 
    if( (whichIt.left + whichIt.clip.width) >= (window.innerWidth+self.pageXOffset-17)) 
whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17; 
    if( (whichIt.top + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17)) 
whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17; 
    return false; 
} 
  return false; 
} 
function dropIt() { 
whichIt = null; 
  if(NS) window.releaseEvents (Event.MOUSEMOVE); 
  return true; 
} 
<!-- DRAG DROP CODE --> 
if(NS) { 
window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN); 
window.onmousedown = grabIt; 
window.onmousemove = moveIt; 
window.onmouseup = dropIt; 
} 
if(IE) { 
document.onmousedown = grabIt; 
document.onmousemove = moveIt; 
document.onmouseup = dropIt; 
} 
if(NS || IE) action = window.setInterval("heartBeat()",1);