$(document).ready(function () {
	var present_item_num_a = 1;
	var present_item_num_b = 1;
	
	function hide_items_on_start(items_count, will_show_item_num, letter)
	{
		for (var a = 1; a <= items_count; a++)
		{
			if (a != will_show_item_num)
				$('#c_' + letter + '_' + a).hide();
		}
	}
	
	function switchItems (present_item_num, items_count, letter)
	{
		$('#c_' + letter + '_' + present_item_num).hide();
		if (++present_item_num > items_count)
			present_item_num = 1;
		$('#c_' + letter + '_' + present_item_num).show();
		
		return present_item_num;
	}
	
	hide_items_on_start(clients_a_count, present_item_num_a, 'a');
	$(document).everyTime(5000, 'c_a', function() {
		present_item_num_a = switchItems(present_item_num_a, clients_a_count, 'a');
	});
});