function changePhoto(photoSrc,image) {
	document.getElementById('mainImg').src = photoSrc;
	
	$('#photos img').removeClass();
	image.className = 'imgHighlight';
}

function nextPhotoGroup(groupAdd){
	
	if( groupAdd > 0)
		$next = $('#photos .openGroup').removeClass('openGroup').addClass('closedGroup').next(':not(#controls)');
	else
		$next = $('#photos .openGroup').removeClass('openGroup').addClass('closedGroup').prev(':not(#controls)');
	
	if( $next.length )
		$next.removeClass('closedGroup').addClass('openGroup');
	else{
		if( groupAdd > 0 )
			$('#photos > div:not(#controls):first').removeClass('closedGroup').addClass('openGroup');
		else
			$('#photos > div:not(#controls):last').removeClass('closedGroup').addClass('openGroup');
	}

}