var MAX = 8888;

function showImg(c, x, total){
	var id = 'img_'+x+'_' + (c);
	var stara = 'img_'+x+'_' + (current);
	var novgumb = 'square_'+x+'_' + (c);
	var stargumb = 'square_'+x+'_' + current;
	document.getElementById(stara).style.display = 'none';
	document.getElementById(stara).style.visibility = 'hidden';
	document.getElementById(id).style.display = 'block';
	document.getElementById(id).style.visibility = 'visible';
	if (current <= MAX) {change_class(stargumb, 'square-link')}
	if (c <= MAX) {change_class(novgumb, 'active-square-link')}	
	current = c*1;
	//if ( total > MAX ) {document.getElementById('picnum_'+x).innerHTML = c + '/' + total;}
}

function showPrevImg(c, y, total, step){
		var novi = c + step;
		var id = 'img_'+y+'_' + novi;
		var stara = 'img_'+y+'_' + current;
		var novgumb = 'square_'+y+'_' + novi;
		var stargumb = 'square_'+y+'_' + current;		
		if (novi > 0 & novi <= total) {
			document.getElementById(stara).style.display = 'none';
			document.getElementById(stara).style.visibility = 'hidden';
			document.getElementById(id).style.display = 'block';
			document.getElementById(id).style.visibility = 'visible';
			current = novi*1;
			//document.getElementById('picnum_'+y).innerHTML = current + '/' + total;
			if (c <= MAX) {change_class(stargumb, 'square-link')}
			if (novi <= MAX) {change_class(novgumb, 'active-square-link')}
		}
		else
		{
			current = c*1;
		}
}