var banner=new Array();

banner[00] = new Array ("banner_ads/CRL.jpg","http://www.concrete-repairs.co.uk/");
banner[01] = new Array ("banner_ads/sika.gif","http://gbr.sika.com/");
banner[02] = new Array ("banner_ads/Makers.jpg","http://www.makers.biz/");



var bi=0;
function randad() {
	bi=Math.floor(Math.random()*banner.length);
}
randad();

var adtimer=0;
function rotatead() {
	if(adtimer!=0) {
		window.clearTimeout(adtimer);
	}
	adtimer=window.setTimeout("rotatead()",5000);
	randad();
	document.getElementById('BannerAd').innerHTML='<A HREF="'+banner[bi][1]+
	'"><img src="http://concreterepair.org.uk/image_01/'+banner[bi][0]+
	'" border=0 alt="'+banner[bi][1]+'"></a>';
}