var map;
var gdir;
var geocoder = null;
var addressMarker;

var keyStr = "ABCDEFGHIJKLMNOP" +
             "QRSTUVWXYZabcdef" +
             "ghijklmnopqrstuv" +
             "wxyz0123456789+/" +
             "=";


function initialize() {
	if (GBrowserIsCompatible()) {      
		map = new GMap2(document.getElementById("map_canvas"));
		gdir = new GDirections(map, document.getElementById("directions"));
		 map.setMapType(G_SATELLITE_MAP);
		 map.setUIToDefault();
		GEvent.addListener(gdir, "load", onGDirectionsLoad);
		GEvent.addListener(gdir, "error", handleErrors);
		map.setCenter(new GLatLng(53.32863, 6.51812), 14);
		var point = new GLatLng(53.32863, 6.51812);
		map.addOverlay(new GMarker(point));
	}
}

function setDirections() {
	var start = document.getElementById('start').value;
	if (start.length > 0) {
		gdir.load("from: " + start + " to: Borgweg 28, Winsum", { "locale" : "nl_NL" });
		document.getElementById('print').disabled = false;
	}
}

function handleErrors(){
	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);
	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);
	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);

	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);

	else alert("An unknown error occurred.");
}

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...
}
function encode64(input) {
	input = escape(input);
	var output = "";
	var chr1, chr2, chr3 = "";
	var enc1, enc2, enc3, enc4 = "";
	var i = 0;
	do {
		chr1 = input.charCodeAt(i++);
		chr2 = input.charCodeAt(i++);
		chr3 = input.charCodeAt(i++);

		enc1 = chr1 >> 2;
		enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
		enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
		enc4 = chr3 & 63;
		
		if (isNaN(chr2)) {
			enc3 = enc4 = 64;
		} else if (isNaN(chr3)) {
			enc4 = 64;
		}
		output = output +
				 keyStr.charAt(enc1) +
				 keyStr.charAt(enc2) +
				 keyStr.charAt(enc3) +
				 keyStr.charAt(enc4);

		chr1 = chr2 = chr3 = "";
		enc1 = enc2 = enc3 = enc4 = "";
	} 
	while (i < input.length);
		return output;
}

function decode64(input) {
	var output = "";
	var chr1, chr2, chr3 = "";
	var enc1, enc2, enc3, enc4 = "";
	var i = 0;
	// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
	var base64test = /[^A-Za-z0-9\+\/\=]/g;
	if (base64test.exec(input)) {
		alert("There were invalid base64 characters in the input text.\n" +
			  "Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\n" +
			  "Expect errors in decoding.");
	}
	input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

	do {
		enc1 = keyStr.indexOf(input.charAt(i++));
		enc2 = keyStr.indexOf(input.charAt(i++));
		enc3 = keyStr.indexOf(input.charAt(i++));
		enc4 = keyStr.indexOf(input.charAt(i++));
		
		chr1 = (enc1 << 2) | (enc2 >> 4);
		chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
		chr3 = ((enc3 & 3) << 6) | enc4;

		output = output + String.fromCharCode(chr1);

		if (enc3 != 64) {
			output = output + String.fromCharCode(chr2);
		}
		if (enc4 != 64) {
			output = output + String.fromCharCode(chr3);
		}

		chr1 = chr2 = chr3 = "";
		enc1 = enc2 = enc3 = enc4 = "";
	
	} 
	while (i < input.length);
	return unescape(output);
}
function openPrintPopup () {
	var start = document.getElementById('start').value;
	var toAddress = '/modules/pages/view/printroute.php?start='+encode64(start)+'&end='+encode64('Noordwolderweg 14, Bedum');
	//alert(toAddress);
	window.open(toAddress, '');
}