var  gdir = new GDirections();
var fromAddress = '';
var toAddress = '';
function initialize() {
      if (GBrowserIsCompatible()) {      
        
        GEvent.addListener(gdir, "load", onGDirectionsLoad);
        GEvent.addListener(gdir, "error", handleErrors);
		ons();
        //setDirections("Castrop-rauxel", "hamm","de_DE");
      }
    }


function setDirections(from, to, locale) {
		fromAddress = from;
		toAddress = to;
	 // alert(toAddress);
	  GEvent.addListener(gdir, "load", onGDirectionsLoad);
      GEvent.addListener(gdir, "error", handleErrors);
      gdir.load("from: " + fromAddress + " to: " + toAddress);
}

function handleErrors(){
	//alert('Error:' + gdir.getStatus().code );
	 	infoField = document.getElementById('route_info');
	 	 kmField = document.getElementById('km');
	 	 kmField.value = 'fehler';
	   if (gdir.getStatus().code == G_GEO_UNKNOWN_ADDRESS)
	     //alert("No corresponding geographic location could be found for one of the specified addresses. This may be due to the fact that the address is relatively new, or it may be incorrect.\nError code: " + gdir.getStatus().code);
	   	infoField.innerHTML ='Die Eingabe "<strong>'+toAddress+'</strong>" wurde nicht gefunden!';
	   else if (gdir.getStatus().code == G_GEO_SERVER_ERROR)
	     //alert("A geocoding or directions request could not be successfully processed, yet the exact reason for the failure is not known.\n Error code: " + gdir.getStatus().code);
	   		infoField.innerHTML ='Google Server Fehler: ' +gdir.getStatus().code;
	   else if (gdir.getStatus().code == G_GEO_MISSING_QUERY)
	     //alert("The HTTP q parameter was either missing or had no value. For geocoder requests, this means that an empty address was specified as input. For directions requests, this means that no query was specified in the input.\n Error code: " + gdir.getStatus().code);
			infoField.innerHTML ='Google Server Fehler: ' +gdir.getStatus().code;
	//   else if (gdir.getStatus().code == G_UNAVAILABLE_ADDRESS)  <--- Doc bug... this is either not defined, or Doc is wrong
	//     alert("The geocode for the given address or the route for the given directions query cannot be returned due to legal or contractual reasons.\n Error code: " + gdir.getStatus().code);
	     
	   else if (gdir.getStatus().code == G_GEO_BAD_KEY)
	     alert("The given key is either invalid or does not match the domain for which it was given. \n Error code: " + gdir.getStatus().code);

	   else if (gdir.getStatus().code == G_GEO_BAD_REQUEST)
	    // alert("A directions request could not be successfully parsed.\n Error code: " + gdir.getStatus().code);
	    infoField.innerHTML ='Bitte überüfen Sie Ihre Eingabe!';
	   else {
	   	//alert("An unknown error occurred.");
	   	infoField.innerHTML ='Unbekannter Google Server Fehler: ' +gdir.getStatus().code;
		}
	   
	}

	function onGDirectionsLoad(){ 
      // Use this function to access information about the latest load()
      // results.

      // e.g.
      // document.getElementById("getStatus").innerHTML = gdir.getStatus().code;
	  // and yada yada yada...
	  // alert('DISTANCE: '+(gdir.getDistance().meters / 1000 ) + " km");
	   kmField = document.getElementById('km');
	   km = (gdir.getDistance().meters / 1000 );
	   
	   km2 = Math.ceil(km);
	   kmField.value = km2;
	   infoField = document.getElementById('route_info');
	   if(km2 > 400){
	   		infoField.innerHTML = 'Die Route von ' +fromAddress +' nach ' + toAddress + ' überschreitet 400 km. Bitte setzen Sie sich mit uns in Verbindung.' ;
	   		
		} else {
			infoField.innerHTML = 'Die Route von ' +fromAddress +' nach ' + toAddress + ' beträgt ca. '+ km2 +' km.';
		}
		GUnload();
		initialize();
	}