var lastScrollY = 0;
var imgpath = '/';

function heartBeat(){ 
	var diffY;
	if (document.documentElement && document.documentElement.scrollTop)
		diffY = document.documentElement.scrollTop;
	else if (document.body)
		diffY = document.body.scrollTop
	else
		{ }

	percent = .1*(diffY-lastScrollY); 
	if (percent>0) percent = Math.ceil(percent); 
	else percent = Math.floor(percent); 
	document.getElementById("onlinecontact").style.top = parseInt(document.getElementById("onlinecontact").style.top) + percent + "px";

	lastScrollY = lastScrollY + percent; 
}

onlinecontactstr = '<div id="onlinecontact" style="width:86px;right:10px;top:260px; position:absolute;z-index:1000;background:url('+imgpath+'images/onlinecontact.gif) no-repeat;text-align:center;padding-top:32px;height:139px;line-height:30px;overflow:hidden;"><p style="margin:9px 0;"><a href="http://wpa.qq.com/msgrd?v=3&amp;uin=260878375&amp;site=qq&amp;menu=yes" target="_blank"><img border="0" title="客服咨询" alt="客服咨询" src="http://wpa.qq.com/pa?p=2:260878375:41" /></a></p><p style="margin:9px 0;"><a href="http://wpa.qq.com/msgrd?v=3&amp;uin=994956976&amp;site=qq&amp;menu=yes" target="_blank"><img border="0" title="客服咨询" alt="客服咨询" src="http://wpa.qq.com/pa?p=2:994956976:41" /></a></p></div>';
document.write(onlinecontactstr);
window.setInterval("heartBeat()",1);