// funktion for show-hide links with arrows

function show(nr, num)
{
	for (var i = 0; i < num; i++) {
		var Name = document.getElementById('slide_info_' + i);
		var button = document.getElementById('slide_link_' + i);
		if(Name!=null){
		if(nr == i){
			Name.style.display = 'block';
			button.className = 'on';
		
		}
		else {
			Name.style.display = 'none';
			button.className = '';
		 }
		}
	}
}