function fetchAddress() {
	var loc;
	if (window.location.hostname == 'everest') {
		loc = 'http://everest:8888/VECCF/website/gallery/';
	} else {
		loc = 'http://' + document.domain + '/gallery/';
	}
	return loc;
}




function switchPhoto(dir,img) {
	
	var loc;
	var method;
	
	loc = fetchAddress();
	loc += 'gallery.php?dir=' + dir + '&img=' + img;
	
	try {
		
		if (window.XMLHttpRequest) {
			xmlhttp = new XMLHttpRequest()
			method= 'GET';
		} else {
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			method= 'POST';
		}
	}
	
	catch (e) {}
	
	xmlhttp.onreadystatechange = trigger1;
	xmlhttp.open(method, loc);
	xmlhttp.send(null);
	
}




function trigger1() {
	if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) {
		var response = xmlhttp.responseText;
		var update = [];
		
		update = response.split('|');
		
		document.getElementById("VPG_slide").innerHTML=update[0];
		document.getElementById("VPG_controls").innerHTML=update[1];
		document.getElementById("VPG_progress").innerHTML=update[2];
	}
}