var directionsService = new google.maps.DirectionsService();
var directionsDisplay = new google.maps.DirectionsRenderer();

var myOptions = {
  zoom:7,
  mapTypeId: google.maps.MapTypeId.ROADMAP
}

var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
directionsDisplay.setMap(map);

var request = {
    origin: '<?php echo $orgcitname; ?>',
    destination: '<?php echo $descitname; ?>',
    travelMode: google.maps.DirectionsTravelMode.DRIVING
};

directionsService.route(request, function(response, status) {
   if (status == google.maps.DirectionsStatus.OK) {
      directionsDisplay.setDirections(response);
   }
});

directionsDisplay.setMap();

var myOptions = {
     zoom:7,
     mapTypeId: google.maps.MapTypeId.ROADMAP
   }

   var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);