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_21 = new CodeZoneAD("ZoneAD_21");
ZoneAD_21.ZoneID      = 21;
ZoneAD_21.ZoneWidth   = 0;
ZoneAD_21.ZoneHeight  = 0;
ZoneAD_21.ShowType    = 1;

var objAD = new ObjectAD();
objAD.ADID           = 30;
objAD.ADType         = 4;
objAD.ADName         = "频道导航";
objAD.ImgUrl         = "";
objAD.InstallDir     = "/";
objAD.ImgWidth       = 0;
objAD.ImgHeight      = 0;
objAD.FlashWmode     = 0;
objAD.ADIntro        = "|&nbsp;<a class=\'Channel\' href=\'/Index.html\'>首页</a>&nbsp;|&nbsp;<a class=\'Channel2\'  href=\'/Article/Index.html\' target=\'_self\' title=\'\'>教案设计</a>&nbsp;|&nbsp;<a class=\'Channel\'  href=\'/Soft/Index.html\' target=\'_self\' title=\'\'>课件下载</a>&nbsp;|&nbsp;<a class=\'Channel\'  href=\'/shijuan/Index.html\' target=\'_self\' title=\'\'>试卷中心</a>&nbsp;|&nbsp;<a class=\'Channel\'  href=\'/sc/Index.asp\' target=\'_blank\' title=\'\'>素材酷库</a>&nbsp;|&nbsp;<a class=\'Channel\'  href=\'/shengyin/Index.html\' target=\'_self\' title=\'\'>有声世界</a>&nbsp;|&nbsp;<a class=\'Channel\'  href=\'/yuedu/Index.html\' target=\'_self\' title=\'\'>读书频道</a>&nbsp;|&nbsp;<a class=\'Channel\'  href=\'/wenzhai/Index.html\' target=\'_self\' title=\'\'>教学文摘</a> | <a class=\'Channel\'  href=\'http://gz.xinyuwen.com/\' target=\'_self\' title=\'\'><font color=red>高中站</font></a>&nbsp;|<br> | <a class=\'Channel\'  href=\'/Reg/User_Reg.asp\' target=\'_self\' title=\'\'>注册</a> | <a class=\'Channel\'  href=\'/User/User_Login.asp\' target=\'_self\' title=\'\'>登陆</a> |&nbsp;<a class=\'Channel\'  href=\'/GuestBook/Index.asp\' target=\'_self\' title=\'\'>留言</a>&nbsp;|&nbsp;<a class=\'Channel\'  href=\'http://www.xinyuwen.com/User/Index.asp\' target=\'_self\' title=\'\'>会员中心</a>&nbsp;|&nbsp;<a class=\'Channel\'  href=\'/xinwen/Index.html\' target=\'_self\' title=\'\'>帮助</a>&nbsp;|&nbsp;<a class=\'Channel\'  href=\'/xinwen/ziliao/57904.html\' target=\'_blank\' title=\'\'><font color=red>充值</font></a>&nbsp;<!--| <a class=\'Channel\'  href=\'http://www.bc55.com\' target=\'_blank\' title=\'\'><font color=red>师友论文服务</font></a> -->|&nbsp;<a class=\'Channel\'  href=\'/bk/\' target=\'_blank\' title=\'\'><font color=red>备课中心</font></a> | \n\r";
objAD.LinkUrl        = "";
objAD.LinkTarget     = 1;
objAD.LinkAlt        = "";
objAD.Priority       = 1;
objAD.CountView      = 0;
objAD.CountClick     = 0;
objAD.ADDIR          = "xyw";
ZoneAD_21.AddAD(objAD);

ZoneAD_21.Show();