//平滑滚动到顶部
totop = {
	init:function(){
		document.getelementbyid("totop").onclick=function(e){
			totop.set();
			return false;
		}		
	},
	waittimer:null,
	set:function(){
		var d_st=document.documentelement.scrolltop;
		if(window.navigator.useragent.indexof("msie")>=1){
			for (var i=d_st; i>10; i-=math.floor(i/6)){
			window.scrollto(0,i);
			}
			window.scrollto(0,10);
		}
		else{
		window.scrollto(0,math.floor(d_st / 2));
		
		 if(d_st>10){
				 waittimer=settimeout("totop.set()",40);
		  }
			else{
				  cleartimeout(waittimer);
			}
		}
	}
}
window.onload = function(){totop.init();}


lastscrolly=0;
function heartbeat(){ 
var diffy;
if (document.documentelement && document.documentelement.scrolltop)
    diffy = document.documentelement.scrolltop;
else if (document.body)
    diffy = document.body.scrolltop
else
    {/*netscape stuff*/}

percent=.1*(diffy-lastscrolly); 
if(percent>0)percent=math.ceil(percent); 
else percent=math.floor(percent); 
document.getelementbyid("full").style.top=parseint(document.getelementbyid("full").style.top)+percent+"px";

lastscrolly=lastscrolly+percent; 
}
suspendcode="<div id=\"full\" style='right:0px;top:300px;position:absolute;z-index:1000'><div class=\"full_qq\"><ul><div class=\"qq_top\"><a id='totop' href='#top' title='点击此处回到顶部'> </a></div><li></li></ul></div></div>"

document.write(suspendcode);
window.setinterval("heartbeat()",1);