document.getelementbyid("service").style.top = 150 + "px";
window.onscroll=function()
{
	var scrolltop = window.pageyoffset || document.documentelement.scrolltop || document.body.scrolltop || 0;
	document.getelementbyid("service").style.top = scrolltop + 150 + "px";
}
function show_service()
{
	if(document.getelementbyid("service").style.width == "33px")
	{
		document.getelementbyid("service").style.width = "143px";
	}else{
		document.getelementbyid("service").style.width = "33px";
	}
}
//新秀