var panorama;
	var currentYaw = 180;
	var currentPitch = 0;
	var scrollTimer;
	var scrolling = false;
	var locationTimer;
	var currentZoom = 0;
	var zoomingIn = true;
	var positions;
	var currentLocation = 0;
	var geocoder = null;
	var map = null;
	var mapAddressName;

	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			initialize_map
    // DESCRIPTION:		initializes the map
    // REMARKS:			None
	function initialize_map()
	{
		map = new GMap2(document.getElementById("map_canvas"));
		map.setCenter(new GLatLng(34, 0), 7);
		//map.setZoom(15);
	}
	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			load_map_location
    // DESCRIPTION:		shows a location on the map
    // REMARKS:			None
    function load_map_location(address, addressName) 
	{
		mapAddressName = addressName;
		geocoder.getLocations(address, addAddressToMap);
	  
    }
	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			addAddressToMap
    // DESCRIPTION:		addAddressToMap() is called when the geocoder returns an
    // answer.  It adds a marker to the map with an open info window
    // showing the nicely formatted version of the address and the country code.
    // REMARKS:			None
	function addAddressToMap(response) 
	{
		map.clearOverlays();
		if (!response || response.Status.code != 200) {
		//alert("Sorry, unable to geocode that address"); // failed to geocode the address
		} else {
		place = response.Placemark[0];
		point = new GLatLng(place.Point.coordinates[1],
							place.Point.coordinates[0]);
		marker = new GMarker(point);
		map.addOverlay(marker);
		map.setCenter(point, 15);
		//marker.openInfoWindowHtml(mapAddressName);
      }
    }
	

	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			load_home
    // DESCRIPTION:		loads the home page for streetview tours
    // REMARKS:			None
	function load_home() 
	{
		// create the geocoder object
		geocoder = new GClientGeocoder();

		// create the positions
		positions = new Array(5);
		positions[0] = "Theater District - Times Square, New York, NY, USA";
		positions[1] = "301 Front St W, Toronto, ON";
		positions[2] = "Avenue Gustave Eiffel, 75007 Paris, France";
		positions[3] = "333 Rue De la Commune Ouest, Montréal";
		positions[4] = "Tower Bridge, Tower Bridge Rd, London";


		// load our map
		panorama = new GStreetviewPanorama(document.getElementById("pano"));
		showAddress(positions[currentLocation]);

		// create scroller
		scrollTimer = window.setInterval(spiral, 200);
		scrolling = true;
		locationTimer = window.setInterval(changeLocation, 15000);
	}

	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			load_about
    // DESCRIPTION:		loads the about page for streetview tours
    // REMARKS:			None
	function load_about()
	{
		// create the geocoder object
		geocoder = new GClientGeocoder();

		// load our map
		panorama = new GStreetviewPanorama(document.getElementById("pano"));
		showPosition(40.757333,-73.986);

		// create scroller
		scrollTimer = window.setInterval(spiral, 200);
		scrolling = true;
	}
	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			load_address
    // DESCRIPTION:		loads a given address
    // REMARKS:			None
	function load_address(address, scrollEnabled, yaw)
	{
		// create the geocoder object
		geocoder = new GClientGeocoder();
		
		// set the yaw
		currentYaw = yaw;
		
		// load our map
		panorama = new GStreetviewPanorama(document.getElementById("pano"));
		showAddress(address);

		if(scrollEnabled == true)
		{
			// create scroller
			scrollTimer = window.setInterval(spiral, 200);
			scrolling = true;
		}
	}
	
	
	function loadAddressAndMap(streetViewAddress, scrollEnabled, yaw, mapAddress, mapAddressName)
	{
		// load the address
		load_address(streetViewAddress, scrollEnabled, yaw);
		
		// load the map
		initialize_map();
		load_map_location(mapAddress, mapAddressName);
		
	}
	

	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			changeLocation
    // DESCRIPTION:		changes the location
    // REMARKS:			None
	function changeLocation()
	{
		// increment the location count
		currentLocation++;
		if(currentLocation > 5) currentLocation = 0;
		
		// update the location
		showAddress(positions[currentLocation]);

	}

	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			spiral
    // DESCRIPTION:		spins us around
    // REMARKS:			None
	function spiral() 
	{
	  currentYaw += 2;
	  panorama.panTo({yaw:currentYaw, pitch:currentPitch, zoom:currentZoom});
	}

	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			spiralRight
    // DESCRIPTION:		spins us around - to the right
    // REMARKS:			None
	function spiralRight() 
	{
	  currentYaw += 2;
	  panorama.panTo({yaw:currentYaw, pitch:currentPitch, zoom:currentZoom});
	}
	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			spiralLeft
    // DESCRIPTION:		spins us around - to the left
    // REMARKS:			None
	function spiralLeft() 
	{
	  currentYaw -= 2;
	  panorama.panTo({yaw:currentYaw, pitch:currentPitch, zoom:currentZoom});
	}
	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			stopScroll
    // DESCRIPTION:		stops us from spinning
    // REMARKS:			None
	function stopScroll()
	{   
		if(scrolling == true)
		{
			window.clearInterval(scrollTimer); 
			scrolling = false;
		}
	}

	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			startScroll
    // DESCRIPTION:		starts the spinning
    // REMARKS:			None
	function startScroll()
	{ 
		if(scrolling == false)
		{
			scrollTimer = window.setInterval(spiral, 200);
			scrolling =  true;
		}
	}

	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			startScroll
    // DESCRIPTION:		starts the spinning - left
    // REMARKS:			None
	function startScrollLeft()
	{ 
		if(scrolling == true)
		{
			stopScroll();
		}

		if(scrolling == false)
		{
			scrollTimer = window.setInterval(spiralLeft, 200);
			scrolling =  true;
		}
	}
	
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			startScroll
    // DESCRIPTION:		starts the spinning - right
    // REMARKS:			None
	function startScrollRight()

	{ 
		if(scrolling == true)
		{
			stopScroll();
		}

		if(scrolling == false)
		{
			scrollTimer = window.setInterval(spiralRight, 200);
			scrolling =  true;
		}
	}

	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			zoomIn
    // DESCRIPTION:		zooms in
    // REMARKS:			None
	function zoomIn()
	{
		if(currentZoom < 3)
		{
			currentZoom++;
		}
		panorama.panTo({yaw:currentYaw, pitch:currentPitch, zoom:currentZoom});
	}
		
	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			zoomOut
    // DESCRIPTION:		zooms Out
    // REMARKS:			None
	function zoomOut()
	{
		if(currentZoom > 0)
		{
			currentZoom--;
		}
		panorama.panTo({yaw:currentYaw, pitch:currentPitch, zoom:currentZoom});
	}

	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			pitchUp
    // DESCRIPTION:		pitches Up
    // REMARKS:			None
	function pitchUp()
	{
		if(currentPitch < 50)
		{
			currentPitch-=10;
		}
		panorama.panTo({yaw:currentYaw, pitch:currentPitch, zoom:currentZoom});
	}

	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			pitchDown
    // DESCRIPTION:		pitches Down
    // REMARKS:			None
	function pitchDown()
	{
		if(currentPitch >= -50)
		{
			currentPitch+=10;
		}
		panorama.panTo({yaw:currentYaw, pitch:currentPitch, zoom:currentZoom});

	}

	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			showPosition
    // DESCRIPTION:		shows the given Position
    // REMARKS:			None
	function showPosition(latitude, longitude)
	{
		panorama.setLocationAndPOV(new GLatLng(latitude, longitude), {yaw: currentYaw, pitch: currentPitch, zoom: currentZoom});
	}

	/////////////////////////////////////////////////////////////////////////////////
    // STRUCT:			showAddress
    // DESCRIPTION:		shows the given address
    // REMARKS:		
	function showAddress(address) {
      
	  if (geocoder) 
	  {
        geocoder.getLatLng( address, function(point) {

            //panorama.setLocationAndPOV(point, {yaw: currentYaw, pitch: currentPitch, zoom: currentZoom});
			if (point) 
			{ 
				panorama.setLocationAndPOV(point, {yaw: currentYaw, pitch: currentPitch, zoom: currentZoom});
			}
			else
			{
				//alert("Location not found"); // position is not found!!!
				panorama.setLocationAndPOV(new GLatLng(-23.3103871, -51.1647943), {yaw: currentYaw, pitch: currentPitch, zoom: currentZoom});
			}
          }

        );
      }
	}