var layerIndex = 1;

function MoveLeftLayer(layerName, position)
{   
  var layer = eval("document.all." + layerName);
  
  var   x   =   10;  
  var   y   =   position;   
  var   diff   =   (document.documentElement.scrollTop   +   y   -  layer.style.posTop)*.40;
  var   y   =   document.documentElement.scrollTop   +   y   -   diff;   
  
  layer.style.posTop = y;
  layer.style.posLeft = x;
  
  setTimeout("MoveLeftLayer('" + layerName + "'," + position + ");", 20);   
} 

function MoveRightLayer(layerName, position)
{   
  var layer = eval("document.all." + layerName);

  var   x   =   10;   
  var   y   =   position ;   
  var   diff   =   (document.documentElement.scrollTop   +   y   -  layer.style.posTop)*.40;
  var   y   =   document.documentElement.scrollTop   +   y   -   diff;   
  layer.style.posTop = y;
  layer.style.posRight = x;
  
  setTimeout("MoveRightLayer('" + layerName + "'," + position + ");", 20);   
} 

function closeAd(layer)
{
   layer.style.display='none';
}

function ShowAd (picUrl, isRight, linkUrl, isClosable,position)
{
    var str = "<div id=AdLayer" + String (layerIndex) + " style='text-align: right;background-color: #eeeeee;position:   absolute;visibility:hidden;z-index:1;'>";
    if (linkUrl != "")
    {
        str = str + "<a href='" + linkUrl + "' target=_blank>";
    }
    str = str + "<img src='" + picUrl + "' border=0>";
    if (linkUrl != "")
    {
        str = str + "</a>";
    }
    if (isClosable)
    {
        str = str + "<BR><a href='javascript:closeAd(document.all.AdLayer" + String (layerIndex) + ");' style='font-size:10pt;'>关&nbsp;闭</a>&nbsp;";
    }
    
 
    str = str + "</div>";
    
    
    document.write(str); 
    document.getElementById("AdLayer" + String (layerIndex)).style.visibility   =   'visible';
   
    if (isRight)
    {
        eval("MoveRightLayer('AdLayer" + String (layerIndex) + "'," + position + ");");
    }
    else
    {
        eval("MoveLeftLayer('AdLayer" + String (layerIndex) + "'," + position + ");");
    }
    
    layerIndex = layerIndex + 1;
}