// JavaScript Document
// William   AD  对联式广告 2009.03.18
var william_win_width;
william_win_width = ( document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.clientWidth )
//alert(william_win_width);

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*/}
	//alert(diffY);
	percent=.1*(diffY-lastScrollY);
	if(percent>0)percent=Math.ceil(percent);
	else percent=Math.floor(percent);
	if(william_win_width>1000){
		document.getElementById("leftDiv").style.top = parseInt(document.getElementById("leftDiv").style.top)+percent+"px";
	} 

	document.getElementById("rightDiv").style.top = parseInt(document.getElementById("rightDiv").style.top)+percent+"px";
	lastScrollY=lastScrollY+percent;
	//alert(lastScrollY);
}
//下面这段删除后，对联将不跟随屏幕而移动。
window.setInterval("heartBeat()",5);
//-->
//关闭按钮
function close_left1(){
    document.getElementById("leftDiv").style.visibility='hidden';
}
function close_left2(){
    document.getElementById("left2").style.visibility='hidden';
}
function close_right1(){
    document.getElementById("rightDiv").style.visibility='hidden';
}
function close_right2(){
    document.getElementById("right2").style.visibility='hidden';
}

function close_aaa(){
	if(william_win_width>1000){
		document.getElementById("leftDiv").style.visibility='hidden';
	}
	document.getElementById("rightDiv").style.visibility='hidden';
}
/*
//显示样式
document.writeln("<style type=\"text\/css\"> ");
document.writeln("#leftDiv,#rightDiv{width:100px;height:100px;position:absolute;z-index:999;} ");
document.writeln(".itemFloat{width:100px;height:auto;line-height:5px;text-align:center;} ");
document.writeln(".itemFloat a {color:#666600; outline: none; background:none;  text-decoration:none;} ");
document.writeln(".itemFloat a:visited { color: #666600; background:none; } ");
document.writeln(".itemFloat a:hover, a:focus { color:#105CB6; background:none; } ");
document.writeln("<\/style> ");

//以下为主要内容
if(william_win_width>1000){
	document.writeln("<div id=\"leftDiv\" style=\"top:40px;left:5px\">");
	//------左侧各块开始
	//---L1
	document.writeln("<div id=\"left1\" class=\"itemFloat\">");
	document.writeln("<a href=\"http://shanghai.neworiental.org/publish/portal25/tab13946\" target=\"_blank\"><img src=img/down_double/miniad20100105_01.gif width=100 height=400 /></a>");
	document.writeln("<br><a href=\"javascript:close_aaa();\" title=\"关闭上面的广告\">关闭<\/a><br><br><br><br>");
	document.writeln("<\/div>");
	//---L2
	//document.writeln("<div id=\"left2\" class=\"itemFloat\">");
	//document.writeln("<a target=_blank href=http://www.lanrentuku.com/><img border=0 src=images/100x100-left.gif></a>");
	//document.writeln("<br><a href=\"javascript:close_left2();\" title=\"关闭上面的广告\">×<\/a>");
	//document.writeln("<\/div>");
	//------左侧各块结束
	document.writeln("<\/div>");
}

document.writeln("<div id=\"rightDiv\" style=\"top:40px;right:5px\">");
//------右侧各块结束
//---R1
document.writeln("<div id=\"right1\" class=\"itemFloat\">");
document.writeln("<a href=\"http://shanghai.neworiental.org/publish/portal25/tab10648/info398582.htm\" target=\"_blank\"><img src=img/down_double/miniad20100105_02.gif width=100 height=400 /></a>");
document.writeln("<br><a href=\"javascript:close_aaa();\" title=\"关闭上面的广告\">关闭<\/a><br><br><br><br>");
document.writeln("<\/div>");
//---R2
//document.writeln("<div id=\"right2\" class=\"itemFloat\">");
//document.writeln("<a target=_blank href=http://www.lanrentuku.com/><img border=0 src=images/100x100-right.gif></a>");
//document.writeln("<br><a href=\"javascript:close_right2();\" title=\"关闭上面的广告\">×<\/a>");
//document.writeln("<\/div>");
//------右侧各块结束
document.writeln("<\/div>");
*/