function switch_img(src) {
	document.getElementById('gallery').src=src;
}

function change_img(i) {
	if(i < 10) {
		i = '0' + i;
	}

	document.getElementById('gallery').src='/italian/img/gallery/' + dir + '/' + i + '.jpg';
	index = i;

	for(var j = 1; j <= max; j++) {
		if(document.getElementById('link' + j)) {
			if(i == j) {
				document.getElementById('link' + j).innerHTML='<span id="link' + j + '" class="link black" onclick="change_img(' + j + ')">' + j + '</span>';
			} else {
				document.getElementById('link' + j).innerHTML='<span id="link' + j + '" class="link" onclick="change_img(' + j + ')">' + j + '</span>'
			}
		}
	}
}

function next_img() {
	if((index + 1) <= max) {
		index = index + 1;
	} else {
		index = 1;
	}

	if(index < 10) {
		var nextIndex = '0' + index;
	} else {
		var nextIndex = index;	
	}


	document.getElementById('gallery').src='/italian/img/gallery/' + dir + '/' + nextIndex + '.jpg';

	for(var j = 1; j <= max; j++) {
		if(document.getElementById('link' + j)) {
			if(index == j) {
				document.getElementById('link' + j).innerHTML='<span id="link' + j + '" class="link black" onclick="change_img(' + j + ')">' + j + '</span>';
			} else {
				document.getElementById('link' + j).innerHTML='<span id="link' + j + '" class="link" onclick="change_img(' + j + ')">' + j + '</span>'
			}
		}
	}
}

function prev_img() {
	if((index - 1) > 0) {
		index = index - 1;
	} else {
		index = max;
	}

	if(index < 10) {
		var prevIndex = '0' + index;
	} else {
		var prevIndex = index;	
	}

	document.getElementById('gallery').src='/italian/img/gallery/' + dir + '/' + prevIndex + '.jpg';

	for(var j = 1; j <= max; j++) {
		if(document.getElementById('link' + j)) {
			if(index == j) {
				document.getElementById('link' + j).innerHTML='<span id="link' + j + '" class="link black" onclick="change_img(' + j + ')">' + j + '</span>';
			} else {
				document.getElementById('link' + j).innerHTML='<span id="link' + j + '" class="link" onclick="change_img(' + j + ')">' + j + '</span>'
			}
		}
	}
}

function rotate() {
	next_img();
	setTimeout('rotate()', 5000);
}