function adInit() {
	var adcontent = new Array();
	var adurl = new Array();
	var adtitle = new Array();
	adcontent[0] = "http://images.arabmmo.com/www/2011/04/14/travian728x90.jpg";  //顶部广告随机
	adcontent[1] = "http://images.arabmmo.com/www/vip/2010/05/07/co728x90.gif";
	adcontent[2] = "http://images.arabmmo.com/www/vip/2011/03/04/728x90_arab_mama.jpg";
	adurl[0] = "http://tracking.traviangames.com/100821061002728/1";
	adurl[1] = "http://qahr.91.com";
	adurl[2] = "http://contest.arabmmo.com";
	adtitle[0] = "travin";
	adtitle[1] = "Arabic Version Conquer Online";
	adtitle[2] = "contest";

	var intRand = Math.floor(Math.random()*3);
	document.getElementById("ads").src = adcontent[intRand];
	document.getElementById("ads").alt = adtitle[intRand];
	document.getElementById("ads_url").href = adurl[intRand];
}adInit();