第一个

<SCRIPT LANGUAGE="JavaScript">
<!--
var showad = true;
var Toppx = 10;   //上端位置
var AdDivW = 80;  //宽度
var AdDivH = 300;  //高度
var PageWidth = 800; //页面多少宽度象素下正好不出现左右滚动条
var MinScreenW = 1024; //显示广告的最小屏幕宽度象素
var ClosebuttonHtml = '<div align="right" style="position: absolute;top:0px;right:0px;margin:2px;padding:2px;z-index:2000;"><a href="javascript:;" style="color:red;text-decoration:none;font-size:12px;">关闭</a></div>'
var AdContentHtml = '<div align="center" style="color:green;font-size:20pt;font-family:楷体;"><br>欢<br>迎<br>光<br>临<br>轻<br>院<br>一<br>系<br>网</div>';
document.write ('<div id="Javascript.LeftDiv" style="position: absolute;border: 1px solid #336699;background-color:#EEEEE2;z-index:1000;width:'+AdDivW+'px;height:'+AdDivH+'px;top:-1000px;word-break:break-all;display:none;">'+ClosebuttonHtml+'<div>'+AdContentHtml+'</div></div>');
document.write ('<div id="Javascript.RightDiv" style="position: absolute;border: 1px solid #336699;background-color:#EEEEE2;z-index:1000;width:'+AdDivW+'px;height:'+AdDivH+'px;top:-1000px;word-break:break-all;display:none;">'+ClosebuttonHtml+'<div>'+AdContentHtml+'</div></div>');
function scall(){
 if(!showad){return;}
 if (window.screen.width<MinScreenW){
  alert("临时提示：\n\n显示器分辨率宽度小于"+MinScreenW+",不显示广告");
  showad = false;
  document.getElementById("Javascript.LeftDiv").style.display="none";
  document.getElementById("Javascript.RightDiv").style.display="none";
  return;
 }
 var Borderpx = ((window.screen.width-PageWidth)/2-AdDivW)/2;

 document.getElementById("Javascript.LeftDiv").style.display="";
 document.getElementById("Javascript.LeftDiv").style.top=document.body.scrollTop+Toppx;
 document.getElementById("Javascript.LeftDiv").style.left=document.body.scrollLeft+Borderpx;
 document.getElementById("Javascript.RightDiv").style.display="";
 document.getElementById("Javascript.RightDiv").style.top=document.body.scrollTop+Toppx;
 document.getElementById("Javascript.RightDiv").style.left=document.body.scrollLeft+document.body.clientWidth-document.getElementById("Javascript.RightDiv").offsetWidth-Borderpx;
}

function hidead()
{
 showad = false;
 document.getElementById("Javascript.LeftDiv").style.display="none";
 document.getElementById("Javascript.RightDiv").style.display="none";
}
window.onscroll=scall;
window.onresize=scall;
window.onload=scall;
//-->
</SCRIPT>

第二个
<script language=JavaScript>
function close163news(){searchspe.style.visibility='hidden';searchspe2.style.visibility='hidden';} var specialcode="<DIV id=searchspe style='Z-INDEX: 100; right: 1px; POSITION: absolute; TOP: 30px;'><TABLE cellSpacing=0 cellPadding=0 width=100 style='font-size:12px;color:#ffffff'><TR><TD height=20> </TD><TD style='CURSOR: hand' width=30>关 闭</TD></TR></TABLE><a href='http://www.nt-net.cn' target='_blank'><img src=img/dl_right.gif width=100 height=300 border=0 alt=迎百年华诞></a></DIV>";document.write(specialcode);lastScrollX=0;function heartBeat0(){diffY=document.body.scrollTop;percent=.1*(diffY-lastScrollX);if(percent>0)percent=Math.ceil(percent);else percent=Math.floor(percent);document.all.searchspe.style.pixelTop+=percent;lastScrollX=lastScrollX+percent;}window.setInterval("heartBeat0()",1);var specialcode2="<DIV id=searchspe2 style='Z-INDEX: 100; left: 1px; POSITION: absolute; TOP: 30px;'><TABLE cellSpacing=0 cellPadding=0 width=100 style='font-size:12px;color:#ffffff'><TR ><TD height=20> </TD><TD style='CURSOR: hand' width=30>关 闭</TD></TR></TABLE> <a href='http://www.nt-net.cn' target='_blank'><img src=img/dl_left.gif width=100 height=300 border=0  alt=庆世纪盛典></a></DIV>";document.write(specialcode2);lastScrollY=0;function heartBeat1(){diffY=document.body.scrollTop;percent=.1*(diffY-lastScrollY);if(percent>0)percent=Math.ceil(percent);else percent=Math.floor(percent);document.all.searchspe2.style.pixelTop+=percent;lastScrollY=lastScrollY+percent;}window.setInterval("heartBeat1()",1);
</script>
第三个
<!-----以下是两侧的广告条---->
<SCRIPT LANGUAGE="JavaScript">
<!--
function initEcAd() {
document.all.AdLayer1.style.posTop = -200;
document.all.AdLayer1.style.visibility = 'visible'
document.all.AdLayer2.style.posTop = -200;
document.all.AdLayer2.style.visibility = 'visible'
MoveLeftLayer('AdLayer1');
MoveRightLayer('AdLayer2');
}
function MoveLeftLayer(layerName) {
var x = 11;
var y = 165;
var diff = (document.body.scrollTop + y - document.all.AdLayer1.style.posTop)*.40;
var y = document.body.scrollTop + y - diff;
eval("document.all." + layerName + ".style.posTop = parseInt(y)");
eval("document.all." + layerName + ".style.posLeft = x");
setTimeout("MoveLeftLayer('AdLayer1');", 20);
}
function MoveRightLayer(layerName) {
var x = 11;
var y = 165;
var diff = (document.body.scrollTop + y - document.all.AdLayer2.style.posTop)*.40;
var y = document.body.scrollTop + y - diff;
eval("document.all." + layerName + ".style.posTop = y");
eval("document.all." + layerName + ".style.posRight = x");
setTimeout("MoveRightLayer('AdLayer2');", 20);
}

document.write("<div id=AdLayer1 style='position: absolute;visibility:hidden;z-index:1'><a href='http://www.nt-net.cn/cdrom' target='_blank'><img src=img/wantou-left.gif  alt='网络通行天下'  border='0'></a></div>"
+"<div id=AdLayer2 style='position: absolute;visibility:hidden;z-index:1'><a href='http://www.npyz.net.cn/itbook/' target='_blank'><img src=img/wantou-right.gif  alt='知识创造财富' border='0'></a></div>");
initEcAd()
//-->
</SCRIPT>
<!------上面是两侧广告的代码--->