可浮动QQ在线客服

(function(){
QQMenuInt=_QQMenuInt;
moveQQmenu=_moveQQmenu;
function _QQMenuInt(){
QQMenu.style.position="absolute";
QQMenu.style.display="";
if(parseInt(document.documentElement.offsetWidth)>1024){
QQMenuPosition.Left+=(parseInt(document.documentElement.offsetWidth)-1024-20);
}
if(QQMenuPosition.isRight){
QQMenu.style.right=QQMenuPosition.Left+"px";
}else{
QQMenu.style.left=QQMenuPosition.Left+"px";
}
QQMenu.style.top=QQMenuPosition.Top+"px";
moveQQmenu();
}
function _moveQQmenu(){
var from=parseInt(QQMenu.style.top,10);
var yOffset;
var to=window.pageYOffset?window.pageYOffset:document.documentElement.scrollTop;
to=to+QQMenuPosition.Top;
if(to!=from){
yOffset = Math.ceil(Math.abs(to-from)/20);
if(to<from)yOffset=-yOffset;
var oldTop=parseInt(QQMenu.style.top,10);
QQMenu.style.top=(oldTop+yOffset)+"px";
}
if(QQMenu.style.display!="none"){
window.setTimeout("moveQQmenu()",QQMenuPosition.timeout);
}
}
})()

<script type="text/javascript">
var QQMenuPosition={Left:10,Top:200,isRight:false,timeout:10}
var QQMenu=document.getElementById("QQMenu");
QQMenuInt();
</script>