function toggleDisplay( id, write_back_id, toggle_type ) 
{

	var message      = null;
	var show_display = false;

    	if ( document.getElementById( id ).style.display == "block" ) {

		show_display = false;

	} else {

		show_display = true;

	}

	if ( toggle_type == 1 ) {

		show_display = true;

	} else if ( toggle_type == 0 ) {

		show_display = false;

 	}

	if ( show_display == true ) {

		document.getElementById( id ).style.display = "block";
		message = "&laquo; <a href=\"#\" onclick=\"toggleDisplay( 'moreproductpod', 'expander' ); return false;\">Hide these Sonos Products</a>";

	} else {

		document.getElementById( id ).style.display = "none";
		message = "&raquo; <a href=\"#\" onclick=\"toggleDisplay( 'moreproductpod', 'expander' ); return false;\">Show all available Sonos Products</a>";

	}

	document.getElementById( write_back_id ).innerHTML = message;

}