js广告随下拉框问题100分求助..急.....

Question

function initEcAd() {document.all.AdLayer2.style.visibility = 'visible';
document.all.AdLayer2.style.posTop = -200;
setTimeout("MoveRightLayer('AdLayer2');", 5000);
}function MoveRightLayer(layerName) {
var x=this.width/2;
var y =200;// 右侧广告距离页首高度
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');", 100);
}document.write("<div id=AdLayer2 class='drag' style='position: absolute;visibility:hidden;z-index:0'><table border='0' cellspacing='0' cellpadding='0'><tr><td width='439' height='27' background='images/hh01.jpg' style='font-size:12px; font-weight:bold; color:#FFFFFF'>&nbsp;&nbsp;&nbsp;&nbsp;提升企业工作效率--!</td></tr><tr><td height='130' background='images/hh04.jpg'><table width='404' height='115' border='0' align='center' cellpadding='0' cellspacing='0'><tr><td width='163'>&nbsp;</td><td width='241' colspan='2' style='font-size:12px; color:#000000; line-height:18px'>欢迎您<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;我们真诚的邀请您与我们客服交谈,如果您有需要,请进入咨询!</td></tr><tr><td height='25'>&nbsp;</td><td style='font-size:12px; color:#000000; line-height:18px' align='center'><img src='images/hh02.jpg' width='59' height='25' /></td><td style='font-size:12px; color:#000000; line-height:18px' align='center'><img src='images/hh03.jpg' width='59' height='25' /></td></tr></table></td> </tr></table></div>");
initEcAd()// JavaScript Document

Answer 1

用Ajax 吧,用Ajax 中的Jquery.js蛮好实现