var d = document;
	var count, maxCount;
	var url = d.location.href;
	if (url.indexOf('baseball') != -1) {
		count = 5;
		maxCount = 6;
	} else if (url.indexOf('basketball') != -1) {
		count = 2;
		maxCount = 3;
	}
	
	function changeBG() {
		d.getElementById('hdr').style.backgroundImage = 'url(img/' + count + '.jpg)';
		if (count < maxCount) {
			setTimeout('changeBG(count)',5000);
		} else {
			count = 1;
			changeBG(count);
		}
		count++;
	}