var slideTime = 200, topMargin;
xAddEventListener(window, 'load',
  function () {
    //topMargin = xPageY('contentGrid');
    
    //leftNavHeight=document.getElementById("nav").clientHeight;
    
    winOnResize(); // set initial position
    
    xAddEventListener(window, 'resize', winOnResize, false);
    xAddEventListener(window, 'scroll', winOnScroll, false);
    
  }, false
);
function winOnResize() {
  xMoveTo('floater', 0, 0);
  if( xGetElementById('floater') != null ){
	  xGetElementById('floater').style.visibility = 'visible';
  }
   leftNavHeight = xPageY('floater');
   
  
}
function winOnScroll() {
  
  var flgScroll= xScrollTop();
 scrollPos=flgScroll-leftNavHeight
 
  
 
  if (flgScroll >leftNavHeight)    // if we remove this it will scroll over the left navigation
   {
    
     xSlideTo('floater', xLeft('floater'), scrollPos+10 , slideTime);
    
   }
   else
    {
    xMoveTo('floater', 0, 0);
 }
    
}
function setSlideTime(st) {
  st = parseInt(st);
  if (!isNaN(st)) slideTime = st;
  var e = xGetElementById('st');
  e.value = st;
  return false;
}