function ObjectAD() {
  /* Define Variables*/
  this.ADID        = 0;
  this.ADType      = 0;
  this.ADName      = "";
  this.ImgUrl      = "";
  this.ImgWidth    = 0;
  this.ImgHeight   = 0;
  this.FlashWmode  = 0;
  this.LinkUrl     = "";
  this.LinkTarget  = 0;
  this.LinkAlt     = "";
  this.Priority    = 0;
  this.CountView   = 0;
  this.CountClick  = 0;
  this.InstallDir  = "";
  this.ADDIR       = "";
}

function CodeZoneAD(_id) {
  /* Define Common Variables*/
  this.ID          = _id;
  this.ZoneID      = 0;

  /* Define Unique Variables*/

  /* Define Objects */
  this.AllAD       = new Array();
  this.ShowAD      = null;

  /* Define Functions */
  this.AddAD       = CodeZoneAD_AddAD;
  this.GetShowAD   = CodeZoneAD_GetShowAD;
  this.Show        = CodeZoneAD_Show;

}

function CodeZoneAD_AddAD(_AD) {
  this.AllAD[this.AllAD.length] = _AD;
}

function CodeZoneAD_GetShowAD() {
  if (this.ShowType > 1) {
    this.ShowAD = this.AllAD[0];
    return;
  }
  var num = this.AllAD.length;
  var sum = 0;
  for (var i = 0; i < num; i++) {
    sum = sum + this.AllAD[i].Priority;
  }
  if (sum <= 0) {return ;}
  var rndNum = Math.random() * sum;
  i = 0;
  j = 0;
  while (true) {
    j = j + this.AllAD[i].Priority;
    if (j >= rndNum) {break;}
    i++;
  }
  this.ShowAD = this.AllAD[i];
}

function CodeZoneAD_Show() {
  if (!this.AllAD) {
    return;
  } else {
    this.GetShowAD();
  }

  if (this.ShowAD == null) return false;
  document.write(this.ShowAD.ADIntro);
}

var ZoneAD_25 = new CodeZoneAD("ZoneAD_25");
ZoneAD_25.ZoneID      = 25;
ZoneAD_25.ZoneWidth   = 0;
ZoneAD_25.ZoneHeight  = 0;
ZoneAD_25.ShowType    = 1;

var objAD = new ObjectAD();
objAD.ADID           = 49;
objAD.ADType         = 4;
objAD.ADName         = "LOGO右边导航";
objAD.ImgUrl         = "";
objAD.InstallDir     = "/";
objAD.ImgWidth       = 0;
objAD.ImgHeight      = 0;
objAD.FlashWmode     = 0;
objAD.ADIntro        = "<div align=left><A title=\"\" href=\"http://www.i3721.com/yuwen/index.html\" target=_blank>语文教案</A>|<A title=\"\" href=\"http://www.i3721.com/shuxue/index.html\" target=_blank>数学教案</A>|<A title=\"\" href=\"http://www.i3721.com/english/index.html\" target=_blank>英语教案</A>|<A title=\"\" href=\"http://www.i3721.com/lishi/index.html\" target=_blank>历史教案</A>|<A title=\"\" href=\"http://www.i3721.com/dili/index.html\" target=_blank>地理教案</A>|<A title=\"\" href=\"http://www.i3721.com/wuli/index.html\" target=_blank>物理教案</A>|<A title=\"\" href=\"http://www.i3721.com/huaxue/index.html\">化学教案</A>|<A title=\"\" href=\"http://www.i3721.com/shengwu/index.html\">生物教案</A>|<a href=\"http://bbs.i3721.com\" target=\"_blank\">论坛</a><br>\n\r  <A title=\"\" href=\"http://www.i3721.com/yuwensj/index.html\" target=_blank>语文试题</A>|<A title=\"\" href=\"http://www.i3721.com/shuxuesj/index.html\">数学试题</A>|<A title=\"\" href=\"http://www.i3721.com/englishsj/index.html\" target=_blank>英语试题</A>|<A title=\"\" href=\"http://www.i3721.com/lishisj/index.html\" target=_blank>历史试题</A>|<A title=\"\" href=\"http://www.i3721.com/dilisj/index.html\">地理试题</A>|<A title=\"\" href=\"http://www.i3721.com/wulisj/index.html\" target=_blank>物理试题</A>|<A title=\"\" href=\"http://www.i3721.com/huaxuesj/index.html\">化学试题</A>|<A title=\"\" href=\"http://www.i3721.com/shengwusj/index.html\">生物试题</A>|<a href=\"http://bbs.i3721.com\" target=\"_blank\">社区</a><BR>\n\r  <A title=\"\" href=\"http://www.i3721.com/bkzx/index.html\">备课中心</A>|<A title=\"\" href=\"http://www.i3721.com/kejian/index.html\">课件大全</A>|<A title=\"\" href=\"http://www.i3721.com/video/index.html\">视频大全</A>|<A title=\"\" href=\"http://www.i3721.com/wav/index.html\">音频大全</A>|<A title=\"\" href=\"http://www.i3721.com/chuzhongchatuguanli/index.html\" target=_blank>初中插图</A>|<A title=\"\" href=\"http://www.i3721.com/gaozhongchatu123/index.html\" target=_blank>高中插图</A>|<A title=\"\" href=\"http://www.i3721.com/gk/index.html\">高考试题</A>|<A title=\"\" href=\"http://www.i3721.com/news/index.html\">教育新闻</A>|<a href=\"http://bbs.i3721.com\" target=\"_blank\">留言</a><br>          \n\r  <script type=\"text/javascript\"><!--\n\rgoogle_ad_client = \"pub-2329678248725865\";\n\r/* 468x15, 导航下面 创建于 08-10-8 */\n\rgoogle_ad_slot = \"7763509997\";\n\rgoogle_ad_width = 468;\n\rgoogle_ad_height = 15;\n\r//-->\n\r</script>\n\r<script type=\"text/javascript\"\n\rsrc=\"http://pagead2.googlesyndication.com/pagead/show_ads.js\">\n\r</script>\n\r</div>";
objAD.LinkUrl        = "";
objAD.LinkTarget     = 1;
objAD.LinkAlt        = "";
objAD.Priority       = 1;
objAD.CountView      = 1;
objAD.CountClick     = 0;
objAD.ADDIR          = "AD";
ZoneAD_25.AddAD(objAD);

ZoneAD_25.Show();