var selected_item = 0;

function swap(new_selected_item)
{
	if (new_selected_item == selected_item)
		return;
		
	$("item" + new_selected_item).className = "list_item_selected";
	$("details" + new_selected_item).style.display = "block";

	if (selected_item > 0) {
        $("item" + selected_item).className = "list_item";
        $("details" + selected_item).style.display = "none";
	}
	
    $("title").innerHTML = $("item" + new_selected_item).innerHTML;

	selected_item = new_selected_item;
}