// Google Maps Interactivity

// Replaces the Microsoft NameSpace in the template
function addVML() {
	if (!document.namespaces) return;
	for(var i =0; i< document.namespaces.length; i++) {
		if (document.namespaces(i).name=='v' ) return;
	}
	document.namespaces.add('v', 'urn:schemas-microsoft-com:vml');
}

google.load("maps", "2");
var map;

var gmarkers 		= [];
var myListener 		= [];
var isCatSet 			= [];
var customIcons 	= [];

// Category Set Up Variables
isCatSet['VICINFO'] 			= '0';
isCatSet['APARTMENT'] 		= '0';
isCatSet['BACKPACKER'] 	= '0';
isCatSet['BEDBREAKFA'] 	= '0';
isCatSet['CABCOTTAGE'] 	= '0';
isCatSet['VANCAMP'] 			= '0';
isCatSet['FARMSTAY'] 		= '0';
isCatSet['HOLHOUSE'] 		= '0';
isCatSet['HOTEL'] 				= '0';
isCatSet['MOTEL'] 				= '0';
isCatSet['RESORT'] 			= '0';
isCatSet['RETREAT'] 			= '0';
isCatSet['SELFCONTAI'] 		= '0';
isCatSet['AMUSETHEME'] 	= '0';
isCatSet['DINEATOUT'] 		= '0';
isCatSet['ENTERTAIN'] 		= '0';
isCatSet['FRMFOODPRD'] 	= '0';
isCatSet['GALMUSECOL'] 	= '0';
isCatSet['HISTHERITG'] 		= '0';
isCatSet['LMARKBLD'] 		= '0';
isCatSet['MARKET'] 			= '0';
isCatSet['MINDUSTRY'] 		= '0';
isCatSet['NATATTRACT'] 	= '0';
isCatSet['NATPARKRES'] 	= '0';
isCatSet['OBSVPLANET'] 	= '0';
isCatSet['PKGDNCEM'] 		= '0';
isCatSet['SCENDRVWLK'] 	= '0';
isCatSet['SHOPPING'] 		= '0';
isCatSet['SPARETREAT'] 	= '0';
isCatSet['SPORTREC'] 		= '0';
isCatSet['WINVINBREW'] 	= '0';
isCatSet['ZOOSNCAQU'] 	= '0';
isCatSet['EVTMARKET'] 		= '0';
isCatSet['EXHIBIT'] 			= '0';
isCatSet['FESTIVAL'] 			= '0';
isCatSet['PERFORMANC'] 	= '0';
isCatSet['SPORT'] 				= '0';
isCatSet['EXTENDED'] 		= '0';
isCatSet['FULLDAY'] 			= '0';
isCatSet['HALFDAY'] 			= '0';
isCatSet['NIGHT'] 				= '0';
isCatSet['TAILORED'] 		= '0';
isCatSet['4WD'] 				= '0';
isCatSet['BICYCLE'] 			= '0';
isCatSet['BOAT'] 				= '0';
isCatSet['CAMPMOTOR'] 	= '0';
isCatSet['CAR'] 					= '0';
isCatSet['EQUIP'] 				= '0';
isCatSet['HOUSEBOAT'] 		= '0';
isCatSet['MINBUSCOAC'] 	= '0';
isCatSet['MOTORCYCLE'] 	= '0';
isCatSet['YACHT'] 				= '0';

myListener['VICINFO'];
myListener['APARTMENT'];
myListener['BACKPACKER'];
myListener['BEDBREAKFA'];
myListener['CABCOTTAGE'];
myListener['VANCAMP'];
myListener['FARMSTAY'];
myListener['HOLHOUSE'];
myListener['HOTEL'];
myListener['MOTEL'];
myListener['RESORT'];
myListener['RETREAT'];
myListener['SELFCONTAI'];
myListener['AMUSETHEME'];
myListener['DINEATOUT'];
myListener['ENTERTAIN'];
myListener['FRMFOODPRD'];
myListener['GALMUSECOL'];
myListener['HISTHERITG'];
myListener['LMARKBLD'];
myListener['MARKET'];
myListener['MINDUSTRY'];
myListener['NATATTRACT'];
myListener['NATPARKRES'];
myListener['OBSVPLANET'];
myListener['PKGDNCEM'];
myListener['SCENDRVWLK'];
myListener['SHOPPING'];
myListener['SPARETREAT'];
myListener['SPORTREC'];
myListener['WINVINBREW'];
myListener['ZOOSNCAQU'];
myListener['EVTMARKET'];
myListener['EXHIBIT'];
myListener['FESTIVAL'];
myListener['PERFORMANC'];
myListener['SPORT'];
myListener['EXTENDED'];
myListener['FULLDAY'];
myListener['HALFDAY'];
myListener['NIGHT'];
myListener['TAILORED'];
myListener['4WD'];
myListener['BICYCLE'];
myListener['BOAT'];
myListener['CAMPMOTOR'];
myListener['CAR'];
myListener['EQUIP'];
myListener['HOUSEBOAT'];
myListener['MINBUSCOAC'];
myListener['MOTORCYCLE'];
myListener['YACHT'];

var geoXmlTrail01;
var geoXmlTrail02;
var geoXmlTrail03;
var geoXmlTrail04;
var geoXmlTrail05;
var geoXmlTrail06;
var geoXmlTrail07;
var geoXmlTrail08;
var geoXmlTrail09;
var geoXmlTrail10;
var geoXmlTrail11;
var geoXmlTrail12;
var geoXmlTrail13;
var geoXmlTrail14;
var geoXmlTrail15;
var geoXmlTrail16;
var geoXmlTrail17;
var geoXmlTrail18;
var geoXmlMR;
var geoXmlVIC;

// Call this function when the page has been loaded
function initialize() {
	// Before anything else, reset the forms on the page to prevent caching of checkboxes
	if (!document.getElementsByTagName) return;
	var pageForms = document.getElementsByTagName("form");
	for (var i=0; i<pageForms.length; i++) {
		pageForms[i].reset();
	}

	// Initiate the Google Maps Object
	map = new google.maps.Map2(document.getElementById("map"));

	// Restricting the range of Zoom Levels
	var mt = map.getMapTypes();
	for (var i=0; i<mt.length; i++) {
		mt[i].getMinimumResolution = function() { return 7;}
		mt[i].getMaximumResolution = function() { return 17;}
	}

	// Center Map and Set Controls
	map.setCenter(new google.maps.LatLng(-33.642063,150.472241), 8);
	map.addControl(new google.maps.SmallMapControl());
	map.addControl(new google.maps.MapTypeControl());
	map.addControl(new google.maps.ScaleControl());
	map.enableScrollWheelZoom();

	// KML Files for Discovery Trails
	downloadPath 	= "http://www.greaterbluemountainsdrive.com.au/downloads/";

	geoXmlTrail01 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-01.kml");
	geoXmlTrail02 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-02.kml");
	geoXmlTrail03 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-03.kml");
	geoXmlTrail04 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-04.kml");
	geoXmlTrail05 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-05.kml");
	geoXmlTrail06 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-06.kml");
	geoXmlTrail07 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-07.kml");
	geoXmlTrail08 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-08.kml");
	geoXmlTrail09 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-09.kml");
	geoXmlTrail10 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-10.kml");
	geoXmlTrail11 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-11.kml");
	geoXmlTrail12 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-12.kml");
	geoXmlTrail13 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-13.kml");
	geoXmlTrail14 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-14.kml");
	geoXmlTrail15 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-15.kml");
	geoXmlTrail16 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-16.kml");
	geoXmlTrail17 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-17.kml");
	geoXmlTrail18 	= new google.maps.GeoXml(downloadPath+"gbmd-trail-18.kml");
	geoXmlMR 		= new google.maps.GeoXml(downloadPath+"gbmd-main-route.kml");
	geoXmlVIC 		= new google.maps.GeoXml(downloadPath+"vic.kml");

	// Load Discovery Trail from Query String
	if (trail!='') {
		trailNumber 	= (trail < 10) ? '0'+trail : trail ;
		trailXml 		= eval('geoXmlTrail'+trailNumber);
		toggleKml(trailXml, trail);
		document.getElementById('geoXmlTrail'+trailNumber).checked = true;
	}

	// Build Icon Objects
	iconVics = new google.maps.Icon();
	iconVics.image = './images/product-marker-vics.png';
	iconVics.shadow = './images/product-marker-shadow.png';
	iconVics.iconSize = new google.maps.Size(16, 16);
	iconVics.shadowSize = new google.maps.Size(32, 16);
	iconVics.iconAnchor = new google.maps.Point(0, 16);
	iconVics.infoWindowAnchor = new google.maps.Point(8, 1);

	iconAccommodation = new google.maps.Icon();
	iconAccommodation.image = './images/product-marker-accommodation.png';
	iconAccommodation.shadow = './images/product-marker-shadow.png';
	iconAccommodation.iconSize = new google.maps.Size(16, 16);
	iconAccommodation.shadowSize = new google.maps.Size(32, 16);
	iconAccommodation.iconAnchor = new google.maps.Point(0, 16);
	iconAccommodation.infoWindowAnchor = new google.maps.Point(8, 1);

	iconAttractions = new google.maps.Icon();
	iconAttractions.image = './images/product-marker-attractions.png';
	iconAttractions.shadow = './images/product-marker-shadow.png';
	iconAttractions.iconSize = new google.maps.Size(16, 16);
	iconAttractions.shadowSize = new google.maps.Size(32, 16);
	iconAttractions.iconAnchor = new google.maps.Point(0, 16);
	iconAttractions.infoWindowAnchor = new google.maps.Point(8, 1);

	iconEvents = new google.maps.Icon();
	iconEvents.image = './images/product-marker-events.png';
	iconEvents.shadow = './images/product-marker-shadow.png';
	iconEvents.iconSize = new google.maps.Size(16, 16);
	iconEvents.shadowSize = new google.maps.Size(32, 16);
	iconEvents.iconAnchor = new google.maps.Point(0, 16);
	iconEvents.infoWindowAnchor = new google.maps.Point(8, 1);

	iconTours = new google.maps.Icon();
	iconTours.image = './images/product-marker-tours.png';
	iconTours.shadow = './images/product-marker-shadow.png';
	iconTours.iconSize = new google.maps.Size(16, 16);
	iconTours.shadowSize = new google.maps.Size(32, 16);
	iconTours.iconAnchor = new google.maps.Point(0, 16);
	iconTours.infoWindowAnchor = new google.maps.Point(8, 1);

	iconHire = new google.maps.Icon();
	iconHire.image = './images/product-marker-hire.png';
	iconHire.shadow = './images/product-marker-shadow.png';
	iconHire.iconSize = new google.maps.Size(16, 16);
	iconHire.shadowSize = new google.maps.Size(32, 16);
	iconHire.iconAnchor = new google.maps.Point(0, 16);
	iconHire.infoWindowAnchor = new google.maps.Point(8, 1);

	// Custom Icons
	customIcons['VICINFO'] = iconVics;
	customIcons['APARTMENT'] = iconAccommodation;
	customIcons['BACKPACKER'] = iconAccommodation;
	customIcons['BEDBREAKFA'] = iconAccommodation;
	customIcons['CABCOTTAGE'] = iconAccommodation;
	customIcons['VANCAMP'] = iconAccommodation;
	customIcons['FARMSTAY'] = iconAccommodation;
	customIcons['HOLHOUSE'] = iconAccommodation;
	customIcons['HOTEL'] = iconAccommodation;
	customIcons['MOTEL'] = iconAccommodation;
	customIcons['RESORT'] = iconAccommodation;
	customIcons['RETREAT'] = iconAccommodation;
	customIcons['SELFCONTAI'] = iconAccommodation;
	customIcons['AMUSETHEME'] = iconAttractions;
	customIcons['DINEATOUT'] = iconAttractions;
	customIcons['ENTERTAIN'] = iconAttractions;
	customIcons['FRMFOODPRD'] = iconAttractions;
	customIcons['GALMUSECOL'] = iconAttractions;
	customIcons['HISTHERITG'] = iconAttractions;
	customIcons['LMARKBLD'] = iconAttractions;
	customIcons['MARKET'] = iconAttractions;
	customIcons['MINDUSTRY'] = iconAttractions;
	customIcons['NATATTRACT'] = iconAttractions;
	customIcons['NATPARKRES'] = iconAttractions;
	customIcons['OBSVPLANET'] = iconAttractions;
	customIcons['PKGDNCEM'] = iconAttractions;
	customIcons['SCENDRVWLK'] = iconAttractions;
	customIcons['SHOPPING'] = iconAttractions;
	customIcons['SPARETREAT'] = iconAttractions;
	customIcons['SPORTREC'] = iconAttractions;
	customIcons['WINVINBREW'] = iconAttractions;
	customIcons['ZOOSNCAQU'] = iconAttractions;
	customIcons['EVTMARKET'] = iconEvents;
	customIcons['EXHIBIT'] = iconEvents;
	customIcons['FESTIVAL'] = iconEvents;
	customIcons['PERFORMANC'] = iconEvents;
	customIcons['SPORT'] = iconEvents;
	customIcons['EXTENDED'] = iconTours;
	customIcons['FULLDAY'] = iconTours;
	customIcons['HALFDAY'] = iconTours;
	customIcons['NIGHT'] = iconTours;
	customIcons['TAILORED'] = iconTours;
	customIcons['4WD'] = iconHire;
	customIcons['BICYCLE'] = iconHire;
	customIcons['BOAT'] = iconHire;
	customIcons['CAMPMOTOR'] = iconHire;
	customIcons['CAR'] = iconHire;
	customIcons['EQUIP'] = iconHire;
	customIcons['HOUSEBOAT'] = iconHire;
	customIcons['MINBUSCOAC'] = iconHire;
	customIcons['MOTORCYCLE'] = iconHire;
	customIcons['YACHT'] = iconHire;

	// Driving Directions
	gdir = new google.maps.Directions(map, document.getElementById("route"));
	google.maps.Event.addListener(gdir, "error", handleErrors);

	// Load Product Marker from Query String
	if (atdw!='') {
		getMarkers(atdw, '', '', '', '', category, '');
	}

	// Add the 'Enlarge' Button that leads to the Main Map
	GMapDivs = document.getElementsByTagName('div');
	for(var i = 0; i < GMapDivs.length; ++i){
		if ( (GMapDivs[i].className=='gmnoprint') && (GMapDivs[i].style.left=='7px') ) {
			var enlargeDiv = document.createElement("div");
			enlargeDiv.setAttribute('id','GMapZoom');
			enlargeDiv.setAttribute('title','Zoom to minimum level required for product icons to display');
			enlargeDiv.onclick = function() { 
				zoomTo(13);
			}
			GMapDivs[i].appendChild(enlargeDiv);
		}
	}

}
google.setOnLoadCallback(initialize);

// Marker Control for the Category Search
function getMarkers(atdw, south, west, north, east, category, subcategory){
	// document.getElementById(subcategory).nextSibling.nextSibling.innerHTML = ' (0)';
	// Get the bounds of the map
	var subcategoryID = subcategory;
	var urlstr="../interactive-map-ajax.php?atdw="+atdw+"&north="+north+"&south="+south+"&west="+west+"&east="+east+"&category="+category+"&subcategory="+subcategory;
	var request = google.maps.XmlHttp.create();
	request.open('GET', urlstr , true);	// Request XML from PHP with AJAX call
	request.onreadystatechange = function () {
		if (request.readyState == 4) {
			var xmlDoc = request.responseXML;
			locations = xmlDoc.documentElement.getElementsByTagName("location");

			markers = [];
			if (locations.length) {
				locLength = '0';
				locLength = (locations.length<1) ? '0' : locations.length ;
				for (var i = 0; i < locations.length; i++) { // Cycle through locations

					var id 				= locations[i].getAttribute("id");
					var name 			= locations[i].getAttribute("name");
					var description 	= locations[i].getAttribute("description");
					var category 		= locations[i].getAttribute("category");
					var subcategory = locations[i].getAttribute("subcategory");
					var point 			= new google.maps.LatLng(parseFloat(locations[i].getAttribute("lat")), parseFloat(locations[i].getAttribute("lng")));
					var marker 		= createMarker(point, id, name, description, category, subcategory);
					map.addOverlay(marker);

					if (atdw) {
						map.setCenter(point, 15);
						google.maps.Event.trigger(marker,'click');
						document.getElementById(subcategory).nextSibling.nextSibling.innerHTML = '';
					} else {
						document.getElementById(subcategory).nextSibling.nextSibling.innerHTML = '('+locLength+')';
					}
				}
				
			} else {
				document.getElementById(subcategoryID).nextSibling.nextSibling.innerHTML = '('+locations.length+')';
			}
			

		}
	}
	request.send(null);
}

// Generate Each Marker
function createMarker(point, id, name, description, category, subcategory) {
	var marker = new google.maps.Marker(point, {title:name, icon:customIcons[subcategory]}); // draggable:true
	var html = '<span class="'+ category +' '+ subcategory +'">' + description + '<\/span>';
	var windowTitle = 'More Details for '+name;
	marker.subcategory = subcategory;
	google.maps.Event.addListener(marker, 'click', function() {
		// Added "More Info" window
		var maxContentDiv = document.createElement('div');
		maxContentDiv.innerHTML = 'Loading...'
		marker.openInfoWindowHtml(html,
			{maxContent: maxContentDiv, maxTitle: windowTitle}
		);

		var iw = map.getInfoWindow();
		// Replace Google's Buttons on InfoWindows
		var buttonParent = document.getElementById("map").childNodes[0].childNodes[0].childNodes[9].childNodes[0].childNodes;
		for (var b=0; b<buttonParent.length; b++) {
			if (b=='8') 		{ buttonParent[b].src = '../images/info-window-close.gif'; }
			if (b=='9') 		{ buttonParent[b].src = '../images/info-window-maximise.gif'; }
			if (b=='11') 		{ buttonParent[b].src = '../images/info-window-minimise.gif'; }
		}

		google.maps.Event.addListener(iw, "maximizeclick", function() {
			google.maps.DownloadUrl('product-details-ajax.php?atdw='+id, function(data) {
				maxContentDiv.innerHTML = data;
			});
		});

	});
	gmarkers.push(marker);
	return marker;
}

// Bound the Marker Generation to the Displayed Area
function getBoundMarkers(category, subcategory) {
	if (subcategory=='VICINFO') {
		bounds 	= map.getBounds();
		south 	= bounds.getSouthWest().lat();
		west 	= bounds.getSouthWest().lng();
		north 	= bounds.getNorthEast().lat();
		east 		= bounds.getNorthEast().lng();
		getMarkers('', south, west, north, east, category, subcategory);
	} else {
		if (map.getZoom() >= '13') {
			bounds 	= map.getBounds();
			south 	= bounds.getSouthWest().lat();
			west 	= bounds.getSouthWest().lng();
			north 	= bounds.getNorthEast().lat();
			east 		= bounds.getNorthEast().lng();
			getMarkers('', south, west, north, east, category, subcategory);
		} else {
			hide(category, subcategory);
		}

	}
}

// Show/Build Marker Lists
function show(category, subcategory) {
	for (var i=0; i<gmarkers.length; i++) {
		if (gmarkers[i].subcategory == subcategory) {
			gmarkers[i].show();
		}
	}
	document.getElementById(subcategory).nextSibling.nextSibling.style.display = 'inline';
}

// Hide Marker Sets
function hide(category, subcategory) {
	for (var i=0; i<gmarkers.length; i++) {
		if (gmarkers[i].subcategory == subcategory) {
			gmarkers[i].hide();
		}
	}
	document.getElementById(subcategory).nextSibling.nextSibling.style.display = 'none';
}

// Toggle Function for Marker Lists
function boxClick(box,category, subcategory) {
	if (box.checked) {
		var locLength = '0';
		show(category, subcategory);
		myListener[subcategory] = google.maps.Event.addListener(map, "moveend", function() {
			getBoundMarkers(category, subcategory);
		});
		getBoundMarkers(category, subcategory);
		isCatSet[subcategory] = '1';
	} else {
		hide(category, subcategory);
		isCatSet[subcategory] = '0';
		google.maps.Event.removeListener(myListener[subcategory]);
		// box.nextSibling.nextSibling.innerHTML = '';
	}
}

// Toggle Check/Uncheck All Lists
function checkAll(checkname, exby) {
	for (i = 1; i < checkname.length; i++) {
		isAllChecked = (exby.checked) ? true : false ;
		if (checkname[i].checked != isAllChecked) {
			checkname[i].checked = isAllChecked;
			boxClick(checkname[i],checkname[i].name,checkname[i].id);
		}
	}
}

// Zoom to Specific Level
function zoomTo(level) {
	map.setZoom(level);
}

// Driving Directions
function setDirections(fromGeoCode, toGeoCode, fromAddress, toAddress, locale) {
	// Clean the forms
	document.getElementById("toAddress").className = 'blurredInput';
	document.getElementById("toAddress").blur();
	document.getElementById("fromAddress").className = 'blurredInput';
	document.getElementById("fromAddress").blur();

	fromSubmit 	= (fromGeoCode!='') ? fromGeoCode : fromAddress ;
	toSubmit 		= (toGeoCode!='') ? toGeoCode : toAddress ;
	
	gdir.load("from: " + fromSubmit + " to: " + toSubmit, { "locale": locale });
}

// Handling Errors
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 have been incorrectly entered into the form field.\n\nAlternatively, you may simply need to supply more information. For example: 'Dundas' may not be recognised whereas 'Dundas, NSW' will.\n\nReport the Error Code to the site administrators: " + 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\nReport the Error Code to the site administrators: " + 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\nReport the Error Code to the site administrators: " + 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\nReport the Error Code to the site administrators: " + gdir.getStatus().code);
	} else if (gdir.getStatus().code == G_GEO_BAD_REQUEST) {
		alert("A directions request could not be successfully parsed. Please check to see if you entered the correct details in all the fields.\n\nReport the Error Code to the site administrators: " + gdir.getStatus().code);
	} else {
		alert("An unknown error occurred.");
	}
}

// Clear Routes
function clearRoute() {
	gdir.clear();
	fromAddress = document.getElementById("fromAddress");
	toAddress = document.getElementById("toAddress");
	fromAddress.value = '';
	fromAddress.className = '';
	fromAddress.focus();
	toAddress.value = '';
	toAddress.className = '';
}

// Driving Directions from Marker
function getDirections(direction, address, point) {
	point = point.replace(/<br \/>/, '');
	fromGeoCode 	= document.getElementById("fromGeoCode");
	toGeoCode 		= document.getElementById("toGeoCode");
	fromAddress 		= document.getElementById("fromAddress");
	toAddress 			= document.getElementById("toAddress");
	
	fromGeoCode.value = '';
	toGeoCode.value = '';
	
	fromAddress.value = '';
	fromAddress.className = '';
	toAddress.value = '';
	toAddress.className = '';
	main_tabs.setActiveTab('directions');
	if (direction=='toHere') {
		fromAddress.className = 'focusedInput';
		fromAddress.focus();
		toGeoCode.value = point;
		toAddress.value = address;
	} else {
		fromGeoCode.value = point;
		fromAddress.value = address;
		toAddress.className = 'focusedInput';
		toAddress.focus();
	}
}

// Functions for KML Files and Layering
var toggle = new Array();
toggle[1] = 'hidden';
toggle[2] = 'hidden';
toggle[3] = 'hidden';
toggle[4] = 'hidden';
toggle[5] = 'hidden';
toggle[6] = 'hidden';
toggle[7] = 'hidden';
toggle[8] = 'hidden';
toggle[9] = 'hidden';
toggle[10] = 'hidden';
toggle[11] = 'hidden';
toggle[12] = 'hidden';
toggle[13] = 'hidden';
toggle[14] = 'hidden';
toggle[15] = 'hidden';
toggle[16] = 'hidden';
toggle[17] = 'hidden';
toggle[18] = 'hidden';
toggle['MR'] = 'hidden';
toggle['VIC'] = 'hidden';

// Toggle the Layers On and Off
function toggleKml(layerName, toggleState) {
	if (toggle[toggleState] == 'visible') {
		map.removeOverlay(layerName);
		map.setCenter(new google.maps.LatLng(-33.642063,150.472241), 8);
		toggle[toggleState] = 'hidden';
	} else {
		map.addOverlay(layerName);
		layerName.gotoDefaultViewport(map);
		toggle[toggleState] = 'visible';
	}
}

// Delete ALL Google Maps Overlays
function clearAllLayers() {
	map.clearOverlays();
	for (i=0; i<toggle.length; i++) {
		toggle[i] = 'hidden';
	}
	checkboxes = document.getElementById("routes").getElementsByTagName("input");
	for (i=0; i<checkboxes.length; i++) {
		checkboxes[i].checked = false;
	}
}

// Uncheck the Trails
function uncheckAll(field) {
	for (i = 0; i < field.length; i++) {
		field[i].checked = false;
	}
}

// Functions for Non-Google Maps Interactivity

// Toggle Control Panel
function toggleControlPanel() {
	var toggleAction = document.getElementById("container");
	if ( (toggleAction.className == 'close') || ((toggleAction.className == '')) ) {
		toggleAction.className = 'open';
		map.checkResize();
	} else {
		toggleAction.className = 'close';
		map.checkResize();
	}
}

// Begin Tab Control
var main_tabs;
function tabControl () {
	main_tabs = new Control.Tabs('main_tabs');
}

// Map and Panel Height
function panelHeights() {
	var bodyWidth,bodyHeight;
	if (self.innerHeight) { // all except Explorer
		bodyWidth = self.innerWidth;
		bodyHeight = self.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		bodyWidth = document.documentElement.clientWidth;
		bodyHeight = document.documentElement.clientHeight;
	}
	else if (document.body) { // other Explorers
		bodyWidth = document.body.clientWidth;
		bodyHeight = document.body.clientHeight;
	}

	// Apply Height to Map and Panels
	bodyHeight 		= bodyHeight; //document.documentElement.clientHeight;
	navHeight 			= document.getElementById("navigation").offsetHeight;
	finalHeight 		= (bodyHeight - navHeight - 8 - 8 - 2);
	document.getElementById("panels").style.height 				= (finalHeight + 3) + 'px';
	document.getElementById("map").style.height 				= finalHeight + 'px';

	// Apply Height to Control Panels
	tabHeight 			= document.getElementById("main_tabs").offsetHeight;
	panelHeight 		= (document.getElementById("panels").offsetHeight - tabHeight - 3) + 'px'; // - 2 (if I include the tab border at the top)
	document.getElementById("legend").style.height 				= panelHeight;
	document.getElementById("routes").style.height 				= panelHeight;
	// document.getElementById("attractions").style.height 	= panelHeight;
	document.getElementById("categories").style.height 		= panelHeight;
	document.getElementById("directions").style.height 			= panelHeight;
}

// XHTML External Link Script
function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];

		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") {
			anchor.target = "_blank";
			anchor.title = (anchor.title=='') ? "Opens in a new window" : anchor.title + " [opens in a new window]";
			anchor.className+=" external";
		}

		if (anchor.className == "u") {
			anchor.onclick = anchor.onclick = function () {
				alert('Coming Soon!');
				return false;
			}
		}

	}
}

// Handle Query Strings
function QueryString(key) {
	var value = null;
	for (var i=0;i<QueryString.keys.length;i++) {
		if (QueryString.keys[i]==key) {
			value = QueryString.values[i];
			break;
		}
	}
	return value;
}
QueryString.keys = new Array();
QueryString.values = new Array();

function QueryString_Parse() {
	var query = window.parent.location.search.substring(1)
	var pairs = query.split("&");

	for (var i=0;i<pairs.length;i++) {
		var pos = pairs[i].indexOf('=');
		if (pos >= 0) {
			var argname = pairs[i].substring(0,pos);
			var value = pairs[i].substring(pos+1);
			QueryString.keys[QueryString.keys.length] = argname;
			QueryString.values[QueryString.values.length] = value;
		}
	}
}
QueryString_Parse();

// Event-Manager Script by Keith Gaughan
if (!Array.prototype.push) {
	Array.prototype.push = function(elem) {
		this[this.length] = elem;
	}
}

var EventManager = {
	_registry: null,

	Initialise: function() {
		if (this._registry == null) {
			this._registry = [];
			EventManager.Add(window, "unload", this.CleanUp);
		}
	},

	Add: function(obj, type, fn, useCapture) {
		this.Initialise();
		if (typeof obj == "string")
			obj = document.getElementById(obj);
		if (obj == null || fn == null)
			return false;
		if (obj.addEventListener) {
			obj.addEventListener(type, fn, useCapture);
			this._registry.push({obj: obj, type: type, fn: fn, useCapture: useCapture});
			return true;
		}
		if (obj.attachEvent && obj.attachEvent("on" + type, fn)) {
			this._registry.push({obj: obj, type: type, fn: fn, useCapture: false});
			return true;
		}
		return false;
	},

	CleanUp: function() {
		for (var i = 0; i < EventManager._registry.length; i++) {
			with (EventManager._registry[i]) {
				if (obj.removeEventListener)
					obj.removeEventListener(type, fn, useCapture);
				else if (obj.detachEvent)
					obj.detachEvent("on" + type, fn);
			}
		}
		EventManager._registry = null;
	}
};

// Multiple Onload Functions to be called
EventManager.Add(window,'load', externalLinks);
EventManager.Add(window,'load', tabControl);
EventManager.Add(window,'load', panelHeights);