var timerID = null;
	var bannerID = 0;
	var timeOut = 5000;
	var imgUrl = new Array();
	var imgLink = new Array();
	var imgAlt = new Array();
	var imgTarget = new Array();
	var imgHTML = '';
	var listNum = 0;
	var imgWidth = 0;
	var imgHeight = 0;

    function nextAd() {
		var maxItem = imgUrl.length;
		if(maxItem > 1) {
			if(timerID)
				clearTimeout(timerID);
	
			imgHTML = "<a href='" + imgLink[bannerID] + "' target='" + imgTarget[bannerID] + "' title='" + imgAlt[bannerID] + "'><img border='0' width='" + imgWidth + "' height='" + imgHeight + "' src='/upload/" + imgUrl[bannerID] + "'></a>"
			$("#bannerimage").empty();
			$("#bannerimage").append(imgHTML);
			
			listNum = parseInt(bannerID) + 1;
			for(var i = 1; i <= maxItem; i++)
				$("#but_" + i).attr("class","ad_" + i + "_off");
			$("#but_" + listNum).attr("class","ad_" + listNum + "_on");
			
			bannerID++;
			if(bannerID > (maxItem - 1))
				bannerID = 0;
	
			timerID = setTimeout("nextAd()", timeOut);
		}
    }
    
    function selectAd(n) {
		bannerID = n;
		nextAd();
    }