var ie=document.all&&navigator.userAgent.indexOf("Opera")==-1;
var dom=document.getElementById&&navigator.userAgent.indexOf("Opera")==-1;

var urlstr=new Array();
//王建民建民風
urlstr[0]="http://59.120.122.53/";
urlstr[1]="http://www.google.com.tw/search?hl=zh-TW&q=%E7%8E%8B%E5%BB%BA%E6%B0%91%E5%BB%BA%E6%B0%91%E9%A2%A8&btnG=%E6%90%9C%E5%B0%8B&meta=&aq=f&oq=";
//王建民非官方網
urlstr[2]="http://tw.search.yahoo.com/search?p=王建民非官方網&fr2=sb-bot&fr=yfp";
urlstr[3]="http://www.google.com.tw/search?hl=zh-TW&q=%E7%8E%8B%E5%BB%BA%E6%B0%91%E9%9D%9E%E5%AE%98%E6%96%B9%E7%B6%B2&btnG=%E6%90%9C%E5%B0%8B&meta=&aq=f&oq=";
urlstr[4]="http://wang40.com/forum/";
//氣球快樂屋
urlstr[5]="http://tw.search.yahoo.com/search?p=%E6%B0%A3%E7%90%83%E5%BF%AB%E6%A8%82%E5%B1%8B&fr=yfp&ei=utf-8&v=0";
urlstr[6]="http://tw.search.yahoo.com/search?p=%E6%B0%A3%E7%90%83%E4%BD%88%E7%BD%AE%E5%BF%AB%E6%A8%82%E5%B1%8B";
urlstr[7]="http://tw.search.yahoo.com/search?p=婚禮快樂屋":
urlstr[8]="http://tw.search.yahoo.com/search?p=佈置快樂屋";
urlstr[9]="http://www.hpball.com.tw/";

urlstr[10]="http://tw.search.yahoo.com/search?p=高雄氣球藝術創意協會&fr=yfp&ei=utf-8&v=0";
urlstr[11]="http://tw.search.yahoo.com/search?p=氣球藝術創意協會&fr=yfp&ei=utf-8&v=0";
urlstr[12]="http://tw.search.yahoo.com/search?p=王建民建民風&fr2=sb-bot&fr=yfp";
//No need to edit after here

if (ie||dom) {
document.write('<img id="adurl" src="http://www.hpball.com.tw" height="0" width="0">');
}

function random_image(){
timer=setInterval("next_image()",(33000 + Math.floor( Math.random() * (urlstr.length+1) )*1000));
}

function next_image(){
	if (ie||dom){
		var imageobj=document.getElementById? document.getElementById("adurl") : document.all.adurl;
		imageobj.src=urlstr[Math.floor(Math.random()*(urlstr.length+1))];
	}
}

window.onload=random_image();