var _tooltip = document.createElement("div");
var overviewMap = new GOverviewMapControl(new GSize(150, 150)); //replace with OpenSpace.Control.OverviewMap();
var largeMapControl = new GLargeMapControl(); //Don't need in OS Openspace Map
var scaleControl = new GScaleControl(); //Don't need in OS Openspace Map
var mapTypeControl = new GMapTypeControl();//Equivalent of this does not exist in OS Openspace Map
var textualZoomControl;

//Dynamic Map class
function DynamicMap(_1, _2, _3, _4, _5) {
	this._map = new GMap2(_1);
	this._map.addControl(largeMapControl);
	this._map.addControl(scaleControl);
	this._map.addControl(overviewMap);
	textualZoomControl = new TextualZoomControl(_2, _3, _4, _5);
	this._map.addControl(textualZoomControl);
	this._map.addControl(mapTypeControl);
	this._map.enableDoubleClickZoom();
	this._isToBeVisibleFn = null;
	this.setCentre(0, 0, 0);
	this._markerMngr = new MarkerManager(this._map);
	this._dataFeeds = new Array();
	this._overlays = new Array();
	this._map.getPane(G_MAP_FLOAT_PANE).appendChild(_tooltip);
}
DynamicMap.prototype._showTooltip = function(_6) {
	_tooltip.innerHTML = _6.tooltip;
	var _7 = this._map.getCurrentMapType().getProjection().fromLatLngToPixel(
			this._map.fromDivPixelToLatLng(new GPoint(0, 0), true),
			this._map.getZoom());
	var _8 = this._map.getCurrentMapType().getProjection().fromLatLngToPixel(
			_6.getPoint(), this._map.getZoom());
	var _9 = _6.getIcon().iconAnchor;
	var _a = _6.getIcon().iconSize.width;
	var _b = _tooltip.clientHeight;
	var _c = new GControlPosition(G_ANCHOR_TOP_LEFT, new GSize(_8.x - _7.x
			- _9.x + _a, _8.y - _7.y - _9.y - _b));
	_c.apply(_tooltip);
	_tooltip.style.visibility = "visible";
};
DynamicMap.isSupported = function() {
	return GBrowserIsCompatible();
};
DynamicMap.prototype.addMapEventListener = function(_d, _e) {
	GEvent.addListener(this._map, _d, _e);
};
DynamicMap.prototype.setCentre = function(_f, lng, _11) {
	this._map.setCenter(new GLatLng(_f, lng), _11);
};
DynamicMap.prototype.addMarkerFeed = function(_12) {
	this._dataFeeds.push(new MarkerDataFeed(_12.name, _12.urlFn, this));
};
DynamicMap.prototype.addPolylineFeed = function(_13) {
	this._dataFeeds.push(new PolylineFeed(_13.name, _13.urlFn, this));
};
DynamicMap.prototype.removeFeed = function(_14) {
	var _15 = -1;
	for ( var idx = 0; idx < this._dataFeeds.length; idx++) {
		var _17 = this._dataFeeds[idx];
		if (_17._name == _14) {
			_15 = idx;
			break;
		}
	}
	if (_15 != -1) {
		this._dataFeeds.splice(_15, 1);
	}
};
DynamicMap.prototype.setIsToBeVisibleFn = function(fn) {
	this._isToBeVisibleFn = fn;
};
DynamicMap.prototype.refresh = function(_19) {   //_19 is a boolean value
	this._map.closeInfoWindow();
	if (_19) {
		this._removeAllOverlayss();
		for ( var idx = 0; idx < this._dataFeeds.length; idx++) {  //DataFeeds array should have MarkerDataFeed or PolylineFeed instances
			var _1b = this._dataFeeds[idx];
			_1b._refresh();
		}
	} else {
		for ( var idx = 0; idx < this._overlays.length; idx++) {
			var _1c = this._overlays[idx];
			this._evaluateForDisplay(_1c);
		}
	}
};
DynamicMap.prototype.focusOnMarker = function(id, _1e) {
	for ( var idx = 0; idx < this._overlays.length; idx++) {
		var _20 = this._overlays[idx];
		if ((_20.id == id) && (_20.type == _1e)) {
			this._makeOverlayVisible(_20, true);
			_20.invokeClick();
			break;
		}
	}
};
DynamicMap.prototype._evaluateForDisplay = function(_21) {
	var _22 = true;
	if (this._isToBeVisibleFn != null) {
		_22 = this._isToBeVisibleFn(_21);
	}
	this._makeOverlayVisible(_21, _22);
};
DynamicMap.prototype._makeOverlayVisible = function(_23, _24) {
	if (!_23._isVisible && _24) {
		if (_23.minZoom != null) {
			this._markerMngr.addMarker(_23._gmarker, _23.minZoom, _23.maxZoom);
		} else {
			this._map.addOverlay(_23._gmarker);
		}
		_23._isVisible = true;
	} else {
		if (_23._isVisible && !_24) {
			if (_23.minZoom != null) {
				this._markerMngr.removeMarker(_23._gmarker);
			}
			this._map.removeOverlay(_23._gmarker);
			_23._isVisible = false;
		}
	}
};
DynamicMap.prototype._addOverlay = function(_25) {
	this._overlays.push(_25);
	this._evaluateForDisplay(_25);
};
DynamicMap.prototype._addYouAreHereOverlay = function(_26) {
	this._map.addOverlay(_26);
};
DynamicMap.prototype._removeAllOverlayss = function() {
	this._map.closeInfoWindow();
	while (this._overlays.length != 0) {
		var _27 = this._overlays.pop();
		this._makeOverlayVisible(_27, false);
	}
};


//DataFeed Class a base class for Feeds
function DataFeed() {
	this._name = "";
	this._urlFn = "";
	this._map = null;
}
DataFeed._HTTP_OK = 200;
DataFeed.prototype._refresh = function() {
	this._refreshDataFeed(function() {
		alert("OVERRIDE THIS METHOD");
	});
};
DataFeed.prototype._refreshDataFeed = function(_28) {   //_28 is MarkerDataFeed._dataLoaded function
	if (this._map != null) {
		var map = this._map;
		var url = this._urlFn();   //this us the feed url which will invoke the velocity view resolver
		if (url != null) {
			GDownloadUrl(url, function(_2b, _2c) {  //similiar to openlayer LoadURL Ajax call but may not need to replace, _2b is the returned xml
				if (_2c == DataFeed._HTTP_OK) {
					_28(map, _2b);
				}
			});
		}
	}
};


//Marker Data Feed class is a subclass of DataFeed base class
function MarkerDataFeed(_2d, _2e, map) {
	this._name = _2d;
	this._urlFn = _2e;
	this._map = map;
}
MarkerDataFeed.prototype = new DataFeed();
MarkerDataFeed.prototype._refresh = function() {
	this._refreshDataFeed(MarkerDataFeed._dataLoaded);
};
MarkerDataFeed._dataLoaded = function(map, _31) {
	var xml = GXml.parse(_31);
	var _33 = xml.documentElement.getElementsByTagName("item");
	for ( var idx = 0; idx < _33.length; idx++) {
		var _35 = _33[idx];
		var id = _35.getAttribute("id");
		var _37 = _35.getAttribute("icon");
		var _38 = _35.getAttribute("type");
		var _39 = _35.getAttribute("tooltip");
		var lat = parseFloat(_35.getAttribute("lat"));
		var lng = parseFloat(_35.getAttribute("lng"));
		var _3c = null;
		var _3d = null;
		var _3e = _35.getAttribute("minZoom");
		if (_3e != null) {
			_3c = parseInt(_3e);
		}
		_3e = _35.getAttribute("maxZoom");
		if (_3e != null) {
			_3d = parseInt(_3e);
		}
		var _31 = "";
		for ( var _3f = 0; _3f < _35.childNodes.length; _3f++) {
			var _40 = _35.childNodes[_3f];
			if (_40.nodeType == 4) {
				_31 = _40.nodeValue;
			}
		}
		
		//This will need os openspace specific functionality
		//_38 type, _37 icon, _31 iframe, _3c minzoom, _3d max zoom
		var _41 = new DataMarker(id, _38, _37, lat, lng, _31, _3c, _3d);
		//_39 tooltip data
		_41._gmarker.tooltip = "<div class=\"tooltip\">" + _39 + "</div>";
		GEvent.addListener(_41._gmarker, "mouseover", function() {
			map._showTooltip(this);
		});
		GEvent.addListener(_41._gmarker, "mouseout", function() {
			_tooltip.style.visibility = "hidden";
		});
		map._addOverlay(_41); //_42 datamarker instance
	}
};



//PolylineFeed class
function PolylineFeed(_42, _43, map) {
	this._name = _42;
	this._urlFn = _43;
	this._map = map;
}
PolylineFeed.prototype = new DataFeed();
PolylineFeed.prototype._refresh = function() {
	this._refreshDataFeed(PolylineFeed._dataLoaded);
};
PolylineFeed._dataLoaded = function(map, _46) {
	var xml = GXml.parse(_46);
	var _48 = xml.documentElement.getElementsByTagName("polyline");
	for ( var idx = 0; idx < _48.length; idx++) {
		var _4a = _48[idx];
		var id = _4a.getAttribute("id");
		var _4c = _4a.getAttribute("type");
		var _4d = _4a.getAttribute("colour");
		var _4e = parseFloat(_4a.getAttribute("weight"));
		var _4f = parseFloat(_4a.getAttribute("opacity"));
		var _50 = _4a.getElementsByTagName("point");
		var _51 = new Array();
		for ( var jdx = 0; jdx < _50.length; jdx++) {
			var _53 = _50[jdx];
			var lat = parseFloat(_53.getAttribute("lat"));
			var lng = parseFloat(_53.getAttribute("lng"));
			_51.push(new GLatLng(lat, lng));
		}
		map._addOverlay(new Polyline(id, _4c, xml, _51, _4d, _4e, _4f));
	}
};



function GoogleOverlay() {
	this.id = "";
	this.type = "";
	this.data = null;
	this._isVisible = false;
}

//DataMarker class
function DataMarker(id, _57, _58, lat, lng, _5b, _5c, _5d) {
	this.id = id;
	this.type = _57;
	this.data = _5b;
	this.minZoom = _5c;
	this.maxZoom = _5d;
	var _5e = new GIcon(G_DEFAULT_ICON);
	_5e.image = _58;
	var _5f = new GLatLng(lat, lng);
	this._gmarker = new GMarker(_5f, _5e); // needs to be OS Open space specific
	this._gmarker.id = id;
	var _60 = this._gmarker;
	GEvent.addListener(_60, "click", function() { //GEvent needs to replaced with os space specific
		DataMarker.onClick(_60, _5b);
	});
}
DataMarker.prototype = new GoogleOverlay();
DataMarker.prototype.invokeClick = function() {
	DataMarker.onClick(this._gmarker, this.data);
};
DataMarker.onClick = function(_61, _62) { //_62 data, _61 is gmarker instance
	_61.openInfoWindowHtml(_62);
};


//Polyline Class
function Polyline(id, _64, _65, _66, _67, _68, _69) {
	this.id = id;
	this.type = _64;
	this.data = _65;
	this._gmarker = new GPolyline(_66, _67, _68, _69);
}
Polyline.prototype = new GoogleOverlay();


//TextualZoomControl
function TextualZoomControl(_6a, lat, lng, _6d) {
	this._area = _6a;
	this._lat = lat;
	this._lng = lng;
	this._zoom = _6d;
}
TextualZoomControl.prototype = new GControl();
TextualZoomControl.prototype.initialize = function(map) {
	var _6f = document.createElement("div");
	var _70 = document.createElement("div");
	this.setButtonStyle_(_70);
	_6f.appendChild(_70);
	_70.appendChild(document.createTextNode("View " + this._area));
	var _71 = new GLatLng(this._lat, this._lng);
	var _72 = this._zoom;
	GEvent.addDomListener(_70, "click", function() {
		map.setCenter(_71, _72);
	});
	map.getContainer().appendChild(_6f);
	return _6f;
};
TextualZoomControl.prototype.getDefaultPosition = function() {
	return new GControlPosition(G_ANCHOR_TOP_LEFT, new GSize(47, 7));
};
TextualZoomControl.prototype.setButtonStyle_ = function(_73) {
	_73.style.color = "black";
	_73.style.backgroundColor = "white";
	_73.style.font = "small Arial";
	_73.style.border = "1px solid black";
	_73.style.padding = "0px";
	_73.style.marginBottom = "0px";
	_73.style.textAlign = "center";
	_73.style.width = "10em";
	_73.style.cursor = "pointer";
};

//remaining functions for dynamicmap class
DynamicMap.prototype.removeOverviewMap = function(_74) {
	this._map.removeControl(overviewMap);
};
DynamicMap.prototype.disableInfoWindow = function() {
	this._map.disableInfoWindow();
};
DynamicMap.prototype.removeLargeMapControl = function() {
	this._map.removeControl(largeMapControl);
};
DynamicMap.prototype.removeScaleControl = function() {
	this._map.removeControl(scaleControl);
};
DynamicMap.prototype.removeMapTypeControl = function() {
	this._map.removeControl(mapTypeControl);
};
DynamicMap.prototype.removeTextualZoomControl = function() {
	this._map.removeControl(textualZoomControl);
};