function adArrayban() {
for (i=0; i*2<adArrayban.arguments.length; i++) {
this[i] = new Object();
this[i].src = adArrayban.arguments[i*2];
this[i].href = adArrayban.arguments[i*2+1];
}
this.length = i;
}
function getAdNumb() {
dat = new Date();
dat = (dat.getTime()+"").charAt(8);
if (dat.length == 1)
ad_numban = dat%adsb.length;
else
ad_numban = 0;
return ad_numban;
}
var adsb = new adArrayban(
"http://www.gasthai.com/ad/gasoncar.gif","http://www.gasincar.com",
"http://www.gasthai.com/ad/hana/hana480.gif","http://www.hanangvlpg.com",
"http://www.gasthai.com/ad/engineer/engineergasbig.gif","http://www.engineergas.com",
"http://www.gasthai.com/ad/santi/santi480x80.gif","http://www.gasthai.com/shop/santi/",
"http://www.gasthai.com/ad/thc/thcnew.gif","http://www.gasthai.com/shop/thc",
"http://www.gasthai.com/ad/banner_chai.gif","http://www.gasthai.com/shop/chai",
"http://www.gasthai.com/ad/banner_ptc.gif","http://www.ptc-gas.com",
"http://www.gasthai.com/ad/banner_magicgas.gif","http://www.gasthai.com/ad/megicgas.asp",
"http://www.gasthai.com/ad/napat/napatbig.gif","http://www.gasthai.com/shop/napat",
"http://www.gasthai.com/ad/moungmai/seng.gif","http://www.gasthai.com/shop/moungmai/");

var ad_numban = getAdNumb(); 
document.write('<CENTER><TABLE CELLPADDING=0 CELLSPACING=1 BORDER=0><TR><TD '
+'ALIGN=CENTER></TD><TD>'
+'<A HREF="'+adsb[ad_numban].href+'" Target=blank><IMG SRC="'+adsb[ad_numban].src+'" '
+'HEIGHT=80 WIDTH=480 BORDER=0 ALT=Detail name=js_ad></A></TD></TR></TABLE></CENTER>');
link_numban = document.links.length-1;
function rotateSponsorban() {
if (document.images) {
ad_numban = (ad_numban+1)%adsb.length;
document.js_ad.src = adsb[ad_numban].src;
document.links[link_numban].href = adsb[ad_numban].href;
setTimeout("rotateSponsorban()",50000);
}
}
setTimeout("rotateSponsorban()",50000);