var divName = 'popimg';
var offX = 16;
var offY = 16;
function mouseX(evt) 
{if (!evt) 
  evt = window.event; 
  if (evt.pageX) return evt.pageX; 
  else if (evt.clientX)return evt.clientX + (document.documentElement.scrollLeft ?  document.documentElement.scrollLeft : document.body.scrollLeft);
  else return 0;} 

function mouseY(evt) 
{if (!evt) 
  evt = window.event; 
  if (evt.pageY) return evt.pageY; 
  else if (evt.clientY)return evt.clientY + (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop); 
  else return 0;} 
  
function follow(evt) 
{if (document.getElementById) 
{var obj = document.getElementById(divName).style; 
 obj.visibility = 'visible'; obj.left = (parseInt(mouseX(evt))+offX) + 'px';  
 obj.top = (parseInt(mouseY(evt))+offY) + 'px';}
} 
 
document.onmousemove = follow;

function showimg(imgid)
{
   var content="<TABLE style='width: 123px; height: 80px; background:url(http://www.assistavideos.com.br/images/bgpop.gif) no-repeat' CELLPADDING='0' CELLSPACING='0'><TD ALIGN='center' valign='middle'><img src='http://img.youtube.com/vi/"+imgid+"/2.jpg' width='117' height='74' hspace='3' vspace='3'></TD></TABLE>";
   document.getElementById('popimg').innerHTML = content;
}

function kill()
{
   var content= "";
   document.getElementById('popimg').innerHTML = content;
}