function show_tour(idx, aantal)
{
	for(i = 0; i < aantal; i++)
	{
		if(i == idx)
		{
			el = document.getElementById('tour_detail_'+idx);
			if(el != null)
			{
				el.className = 'tour_meer_open';
			}
			
			el = document.getElementById('tour_'+idx);
			el.className = 'tour_meer_full_detail';
		}
		else
		{
			el = document.getElementById('tour_detail_'+i);
			if(el != null)
			{
				el.className = 'tour_meer_toe';
			}				
			
			el = document.getElementById('tour_'+i);
			el.className = 'tour_meer_full_toe';
		}
	}
}