var timer_id=0;
var tmp = 0;
var data_tmp;

function init_from_us_switcher () {

	$('#ref_content').fadeOut ( "slow" );
	timer_id  = setTimeout( 'load_from_us_texts()', 1000 );
}

function load_from_us_texts () {

	$.post( 'assets/php/load_from_us.php', { id: from_us_id_list[ Math.round ( Math.random() * (from_us_id_list.length - 1) ) ] },
		function ( data ) {

			if ( ! data_tmp ) {

				$('#ref_content').html(data);
				$('#ref_content').fadeIn ( "slow" );

				data_tmp = 'set';
				return ;
			}

			$('#ref_content').fadeOut ( "slow", function () {
					$('#ref_content').html(data_tmp);
					$('#ref_content').fadeIn ( "slow" );
				});
			data_tmp = data;
	});

	tmp ++;

	if ( tmp == from_us_id_list.length )
		tmp = 0;

	timer_id  = setTimeout( 'load_from_us_texts()', 30000 );
}