function showBooking( trigger ) {
			
	var trigger_value = trigger.options[trigger.selectedIndex].value;
	
	if( trigger_value != "" && trigger_value != "#" )
		popup( trigger_value );
	

}

function popup( url ) {

	var booking_window = window.open( url, 'booking', 'width=920, height=650, scrollbars=1' );

}