// Dickson Holiday Park Modules Javascript Code

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
	d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() { //v4.0 Modified by Peter
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
	if (val) { nm=val.name; if ((val=val.value)!="") {
	  if (test.indexOf('isEmail')!=-1) { p=val.search(/^[^@]+@[^@]+.[a-z]{2,}$/i);
		if (p<0 || p==(val.length-1) || val.indexOf(' ')!=-1) errors+='- '+nm+' must contain an e-mail address.\n';
	  } else if (test!='R') { num = parseFloat(val);
		if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
		if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
		  min=test.substring(8,p); max=test.substring(p+1);
		  if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
	} } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}	gMarkers = Array();
		gIcons = Array();
		gRegions = Array();
		map = null;
		mapid = 0;
		markerOver = false;
		function Googlemap_createMap(Glat, Glng, Gzoom) {
			GPolygon.prototype.Contains = function(point) {
			var j=0;
			var oddNodes = false;
			var x = point.lng();
			var y = point.lat();
			for (var i=0; i < this.getVertexCount(); i++) {
			  j++;
			  if (j == this.getVertexCount()) {j = 0;}
			  if (((this.getVertex(i).lat() < y) && (this.getVertex(j).lat() >= y))
			  || ((this.getVertex(j).lat() < y) && (this.getVertex(i).lat() >= y))) {
				if ( this.getVertex(i).lng() + (y - this.getVertex(i).lat())
				/  (this.getVertex(j).lat()-this.getVertex(i).lat())
				*  (this.getVertex(j).lng() - this.getVertex(i).lng())<x ) {
				  oddNodes = !oddNodes
				}
			  }
			}
			return oddNodes;
			}
			if (GBrowserIsCompatible()) {
				map = new GMap2(document.getElementById("Googlemap_map"));
				Googlemap_customiseMap();
				map.setCenter(new GLatLng(Glat, Glng), Gzoom);
				// Setup Regions 
				gRegions = Googlemap_getRegions();
				// Setup icons
				var icons = Googlemap_getIcons();
				for(var iconid in icons) {
					var icon = new GIcon();
					icon.image = "../uploads/Googlemap/" + icons[iconid][1];
					icon.iconSize = new GSize(icons[iconid][2], icons[iconid][3]);
					if(icons[iconid][4] == 1) {
						icon.iconAnchor = new GPoint((icons[iconid][2] / 2), (icons[iconid][3])); 
					} else {
						icon.iconAnchor = new GPoint((icons[iconid][2] / 2), (icons[iconid][3] / 2)); 
					}
					icon.infoWindowAnchor = new GPoint((icons[iconid][2] / 2), (icons[iconid][3] / 2));
					gIcons[iconid] = icon;
				}
				GEvent.addListener(map, "zoom", function() {
					Googlemap_showMarkers();
				});

				GEvent.addListener(map, "moveend", function() {
					Googlemap_showMarkers();
				});	
				Googlemap_getMarkers();
			}
		}
		
		function Googlemap_markerOver(i) {
			if(gMarkers[i].displayLabel == 0) map.addOverlay(gMarkers[i].label);
		}
		
		function Googlemap_markerOut(i) {
			if(gMarkers[i].displayLabel == 0) map.removeOverlay(gMarkers[i].label);
		}
		function Googlemap_getMarkers() {
			var request = GXmlHttp.create();
			request.open("GET", "/modules/display.php?modulename=Googlemap&action=getMarkers&mapid=" + mapid, true);
			request.onreadystatechange = function () {
				if (request.readyState == 4) {
					var xmlDoc = request.responseXML;
					var markers = xmlDoc.documentElement.getElementsByTagName("marker");
					if(markers.length) {
						for(var i = 0; i < markers.length; i++) { 
							var marker = Googlemap_createMarker(markers[i], i);
							if(marker)gMarkers[i] = marker;
						}
						Googlemap_showMarkers();
						Googlemap_showBoxes();
					}
				}
			}
			request.send(null);
		}
		function Googlemap_createMarker(markerDetails, i) {
			var iconid = parseInt(markerDetails.getAttribute("iconid"));
			var icon = gIcons[iconid];
			var marker = new GMarker(new GLatLng(markerDetails.getAttribute("latitude"),markerDetails.getAttribute("longitude")), icon);
			marker.id = markerDetails.getAttribute("id");
			marker.name = markerDetails.getAttribute("name");
			marker.categoryid = markerDetails.getAttribute("categoryid");
			marker.description = markerDetails.getAttribute("description");
			marker.display = false;
			marker.displayLabel = parseInt(markerDetails.getAttribute("label_display"));
			marker.label = Googlemap_createLabel(marker.name, new GLatLng(markerDetails.getAttribute("latitude"),markerDetails.getAttribute("longitude")),markerDetails.getAttribute("label_offset_x"),markerDetails.getAttribute("label_offset_y"), iconid);
			GEvent.addListener(marker, "click", function() {
				Googlemap_markerClick(i);
			});
			GEvent.addListener(marker, "mouseover", function() { Googlemap_markerOver(i); });
			GEvent.addListener(marker.label, "click", function() { Googlemap_markerClick(i); });
			GEvent.addListener(marker.label, "mouseover", function() { markerOver = true; });
			GEvent.addListener(marker.label, "mouseout", function() { markerOver = false; Googlemap_markerOut(i); });
			return marker;
		}
		
		function Googlemap_createLabel(label, latLng, offsetX, offsetY, iconid) {
			var icons = Googlemap_getIcons();
			offsetX = parseInt(offsetX);
			offsetY = parseInt(offsetY);
			if(iconid > 0) {
				if(offsetX == 0) offsetX = (icons[iconid][2] / 2) + 5;
				if(offsetY == 0) offsetY = -(icons[iconid][3] / 2);
			} else {
				if(offsetX == 0) offsetX = 20;
				if(offsetY == 0) offsetY = -30;
			}
			var icon = new GIcon();
			icon.image = "";
			icon.iconAnchor = new GPoint(20, 15);
			icon.iconSize = new GSize(100, 12);
			opts = {
				"icon": icon,
				"clickable": true,
				"labelText": label.replace(" ", "&nbsp;"),
				"labelClass": Googlemap_marker_label,
				"labelOffset": new GSize(offsetX, offsetY)
			};
			var markerLabel = new LabeledMarker(latLng, opts);
			return markerLabel;
		}
		
		function Googlemap_markerClick(i) {
			// Close current info window
			map.closeInfoWindow();
			// If the marker is not displayed then center in on the marker and reload the visible markers
			if(!gMarkers[i].display) {
				var point = gMarkers[i].getPoint();
				map.setCenter(new GLatLng(point.lat(), point.lng()));
				Googlemap_showMarkers();
			}
			if(gMarkers[i].description) gMarkers[i].openInfoWindowHtml(gMarkers[i].description, GSize(10, 10));
			googlemap_markerClickCustomisation(i);
		}
		function Googlemap_showMarkers() {
			for(var a = 0; a < gMarkers.length; a++) {
				var bounds = map.getBounds(); 
				var sw = bounds.getSouthWest(); 
				var ne = bounds.getNorthEast(); 
				var point = gMarkers[a].getPoint();
				
				if(bounds.contains(point)) {
					if(!gMarkers[a].display) {
						map.addOverlay(gMarkers[a]);
						gMarkers[a].display = true;
						if(gMarkers[a].displayLabel == 1) map.addOverlay(gMarkers[a].label);
					}
				} else {
					map.removeOverlay(gMarkers[a]);
					gMarkers[a].display = false;
				}
			}
		}