var scripts=document.getElementsByTagName("script");
var CurrentScript=scripts[scripts.length-1];

addEvent(window, "load", function(){
	GMW.create(); 
	GMW_MAP.init(GMW.EXT_PARAMS.map_holder);
});

var GMW_MAP={
	init:function(id){
		if (!GBrowserIsCompatible()) return;
		addEvent(window, "unload", GUnload);
		
		this.block=document.getElementById(id);
		
		map = new GMap2(this.block);
		
		geocoder = new GClientGeocoder();
		
        //map.setUIToDefault();

		map.enableScrollWheelZoom();
		map.enableContinuousZoom();
		map.disableInfoWindow();
		var latlng=GMW.EXT_PARAMS.latlng;
		map.setCenter(new GLatLng(GMW.EXT_PARAMS.latlng&&GMW.EXT_PARAMS.latlng[0]?GMW.EXT_PARAMS.latlng[0]:52.527000, GMW.EXT_PARAMS.latlng&&GMW.EXT_PARAMS.latlng[1]?GMW.EXT_PARAMS.latlng[1]:13.408000), GMW.EXT_PARAMS.zoom || 11);
		
	},
	

	//create single marker and attach event on it
	createMarker:function(point){
		var cIcon=this.marker("gmw_m"+GMW.res.categories[point.cId].icon+".png");

		var opts = {
			"icon": cIcon,	
			"clickable": true,
			"draggable": false
		};
		var marker = new GMarker(new GLatLng(point.lat, point.lon), opts);
		
		marker.href=point.href;
		marker.tooltip=point.tooltip;
		if(point.url || point.link)
			GEvent.addListener(marker, "click", function() {
				 location.href=point.url || point.link;
			});
		GEvent.addListener(marker, "mouseover", function() {
			GMW_Tooltip.show(marker, point);
		});
		GEvent.addListener(marker, "mouseout", function() {
			GMW_Tooltip.hide();		
		});
	
		return marker;
	},
	
	// draw/redraw markers on the map
	drawMarkers:function(points){
		this.clear();
		var markers=[];
		for(var i in points){
			var marker=this.createMarker(points[i]);
			markers.push(marker);
			map.addOverlay(marker);
		}
		this.setViewPort(points);
	},
	
	clear:function clearMarkers(){
		if(map) map.clearOverlays();
	},
	
	getViewPort:function(){
		var bounds = Map.boundsNormalize(map.getBounds());
		var southWest = bounds.getSouthWest();
		var northEast = bounds.getNorthEast();
		return {n:{lng:northEast.lng(),lat:northEast.lat()},s:{lng:southWest.lng(),lat:southWest.lat()}};
	},
	
	setViewPort:function(points){
		if(!points || !points[0]) return false;
		//get markers view zone on map, return rectangle bounds
		var exists, n_lng, n_lat, s_lng, s_lat;
		for(var i in points){
			n_lng=!exists || (exists && Number(points[i]["lon"])>n_lng)?Number(points[i]["lon"]):n_lng;
			n_lat=!exists || (exists && Number(points[i]["lat"])>n_lat)?Number(points[i]["lat"]):n_lat;
			s_lng=!exists || (exists && Number(points[i]["lon"])<s_lng)?Number(points[i]["lon"]):s_lng;
			s_lat=!exists || (exists &&  Number(points[i]["lat"])<s_lat)?Number(points[i]["lat"]):s_lat;
			exists=true;
		}
		if(!exists) return false;
	
		var bounds=new GLatLngBounds(new GLatLng(s_lat,  s_lng), new GLatLng(n_lat, n_lng));	
		//bounds=boundsNormalize(bounds);
		
		//set move/zoom map to ViewPort
		//map.setCenter(bounds.getCenter(), map.getBoundsZoomLevel(bounds));
		//map.setCenter(new GLatLng(52.527000, 13.408000), 11);
	},
	marker:function(img){
		if(!this.icon){
			this.icon=new GIcon();
			this.icon.shadow=GMW.script_path+"marker.png";
		//	this.icon.iconSize=new GSize(35, 36);
			this.icon.shadowSize=new GSize(35, 40);
			this.icon.iconAnchor=new GPoint(18, 37);
			this.icon.infoWindowAnchor=new GPoint(0, 0);
		}
		this.icon.image=GMW.script_path+img;
		return this.icon;
	}
};



var GMW_Tooltip={
	init:function(){
		this.tooltip=makeHTML({tag:"div", className:"gmw_tooltip"}, GMW_MAP.block.parentNode, GMW_MAP.block);
		this.hdr=makeHTML({tag:"div", className:"gmw_hdr"}, this.tooltip);
		this.pointer=makeHTML({tag:"div", className:"gmw_pointer"}, this.tooltip);
		this.corner=makeHTML({tag:"div", className:"gmw_corner"}, this.tooltip);
		this.content=makeHTML({tag:"div", className:"gmw_content"}, this.tooltip);
		this.name=makeHTML({tag:"div", className:"gmw_name"}, this.content);
		this.addr=makeHTML({tag:"div", className:"gmw_addr"}, this.content);
		this.inited=1;
	},
	show:function(marker, point){
		if(!this.inited) this.init();
		var parent_pos=this.offset(GMW_MAP.block);
		var cc=this.pos(marker);
		this.tooltip.style.top=(parent_pos.top+cc.y+(BROWSER.ie?3:5))+"px";
		this.tooltip.style.left=(parent_pos.left+cc.x-(BROWSER.ie?15:12))+"px";
		this.hdr.innerHTML=GMW.res.categories[point.cId].name;
		this.name.innerHTML=point.name;
		this.addr.innerHTML=point.address?point.address:GMW.get_addr(point, marker, this.addr);
		this.tooltip.style.display="block";
		if(BROWSER.ie) this.hdr.style.width=(this.tooltip.offsetWidth-32)+"px";
	},
	hide:function(){
		if(BROWSER.ie) this.hdr.style.width="auto";
		this.tooltip.style.display="none";
	},
	pos:function(marker){
		return map.fromLatLngToContainerPixel(marker.getLatLng());
	},
	offset:function(obj){
		var left=0, top=0;
		if(obj.getBoundingClientRect){
			var box=obj.getBoundingClientRect();
			left=box.left+Math.max(document.documentElement.scrollLeft, document.body.scrollLeft);
			top=box.top+Math.max(document.documentElement.scrollTop, document.body.scrollTop);
		}
		else{
			
		}
		return {left:left, top:top};
	}
};



var GMW={
	create:function(){
	
		var _this=this;
		this.place=CurrentScript;
		this.EXT_PARAMS=(new Function('return ('+this.place.innerHTML+')'))();
		
		this.load_mode=location.href.replace(new RegExp(this.EXT_PARAMS["base"]), "");
		if(/^http:\/\//.test(this.load_mode)) this.load_mode="";
		var url_params=this.load_mode?this.load_mode.split("/"):[];
		this.res=[];
		this.list=[];
		this.url_items=[];
		this.url_items["areas"]=url_params[0] && url_params[0]!="-"?url_params[0].split("&"):[];
		this.url_items["filter"]=url_params[1] && url_params[1]!="-"?url_params[1].split("&"):[];
		this.url_items["categories"]=url_params[2] && url_params[2]!="-"?url_params[2].split("&"):[];
		
		this.script_path=this.place.src.replace(/[a-z]+\.js$/,"");

		this.css=makeHTML({tag:"link", rel:"stylesheet", type:"text/css", href:this.place.src.replace(/\.js$/,".css")}, this.place.parentNode, this.place);
	
		this.root= document.getElementById('gmw_root')
		this.body=makeHTML({tag:"div", className:"gmw_body"}, this.root);
			
if(this.EXT_PARAMS["showFilter"] == 1){
this.gmw_frame1=makeHTML({tag:"div", className:"gmw_frame1"}, this.body);

			this.sizer=makeHTML({tag:"div", className:"gmw_sizer"}, this.root);
		/*	this.but_a=makeHTML({tag:"a",  className:"gmw_but_a",  innerHTML:this.EXT_PARAMS["but_a"], type:"block", arr:"arr_a", onmouseover:function(){return _this.showhide(this.root)}}, this.body);*/

			this.but_a=makeHTML({tag:"a",  className:"gmw_but_a",  innerHTML:this.EXT_PARAMS["but_a"], type:"block", arr:"arr_a", onmouseover:function(){return _this.showhide(this)}}, this.body);
		
		
		
		
			this.arr_a=makeHTML({tag:"i"}, this.but_a);
			this.block=makeHTML({tag:"div", className:"gmw_block"}, this.body);
			this.gmw_frame2=makeHTML({tag:"div", className:"gmw_frame2"}, this.block);
			this.but_close=makeHTML({tag:"a",  className:"gmw_frame3",  innerHTML:this.EXT_PARAMS["but_close"], type:"block", arr:"arr_a", onclick:function(){return _this.showhideclick(this)}}, this.block);
			this.hdr=makeHTML({tag:"div", className:"gmw_hdr", innerHTML:this.EXT_PARAMS["hdr_1"]}, this.block);
			this.place_categories=makeHTML({tag:"div"}, this.block);
}

			this.hdr=makeHTML({tag:"div", className:"gmw_hdr"}, this.block);
			this.but_submit_a1=makeHTML({tag:"a", className:"gmw_submit", href:"", innerHTML:this.EXT_PARAMS["but_submit"]}, this.block);


/*  Detail box  auskommentiert wegen auf und zu klappen*/

this.detail= document.getElementById('gmw_detail')
		this.body=makeHTML({tag:"div", className:"gmw_body"}, this.detail);
			
if(this.EXT_PARAMS["showFilter"] == 1){
			this.sizer=makeHTML({tag:"div", className:"gmw_sizer"}, this.detail);
		/*	this.but_a=makeHTML({tag:"a", className:"gmw_but_a", innerHTML:this.EXT_PARAMS["but_a"], type:"block", arr:"arr_a", onclick:function(){return _this.showhide(this)}}, this.body);*/

			/*this.arr_a=makeHTML({tag:"i"}, this.but_a);*/
			/*this.block=makeHTML({tag:"div", className:"gmw_block"}, this.body);*/
			

			/*this.hdr=makeHTML({tag:"div", className:"gmw_hdr", innerHTML:this.EXT_PARAMS["hdr_2"]}, this.block);*/
			this.sub_block=makeHTML({tag:"div", className:"gmw_sub_block", id:"gmw_sub_block"}, this.body);
			this.place_areas=makeHTML({tag:"div"}, this.sub_block);
			/*this.hdr=makeHTML({tag:"div", className:"gmw_hdr"}, this.block);*/
			this.but_submit_a2=makeHTML({tag:"a", className:"gmw_submit", href:"", innerHTML:this.EXT_PARAMS["but_submit"]}, this.sub_block);
}

/*  Tag box  */
this.tag= document.getElementById('gmw_tag')
		this.body=makeHTML({tag:"div", className:"gmw_body"}, this.tag);

if(this.EXT_PARAMS["showTags"] == 1){
		if(this.load_mode){
			this.sizer=makeHTML({tag:"div", className:"gmw_sizer"}, this.detail);

			
			this.sub_block=makeHTML({tag:"div", className:"gmw_sub_block", id:"gmw_sub_block"}, this.body);
			this.place_filters=makeHTML({tag:"div"}, this.sub_block);

			this.but_submit_b=makeHTML({tag:"a", className:"gmw_submit", innerHTML:this.EXT_PARAMS["but_submit"]}, this.sub_block);
		
		}
}
/* Ausgabe für WO sucht du und WAS suchst du */		
		this.get_data("categories", this.place_categories);
		this.get_data("areas", this.place_areas);
	
	},
	get_data:function(type, place){
		var _this=this;
		this.list[type]=[];
		var func=function(response){
			_this.res[type]=response;
			switch(type){
				case "spots": GMW_MAP.drawMarkers(response); break;
				case "filter": _this.make_filters(response, place, type); break;
				default:  
					_this.make_cat_areas(response, place, type);
					if(_this.load_mode && !_this.spots_loaded){
						_this.get_data("filter", _this.place_filters);
						_this.get_data("spots");
						_this.spots_loaded=1;
					}
			}
			_this.parse_url(type);
		}
		this.get_json(this.EXT_PARAMS["json_"+type], func);
	},
	get_json:function(url, func){
		new AJAX({file:url, onready:func, send:1});
	},
	get_length:function(hash){
		var k=0;
		for(var i in hash) k++;
		return k;
	},

// Hier kann man die spalten anlegen wieviele nebeneinander seine sollen
	make_cat_areas:function(response, place, type){
		var _this=this;
		var len=this.get_length(response);
		var items_per_col=Math.round(len/2);
		var k=0;
		for(var i in response){
			if(!k){
				k=items_per_col;
				var span=makeHTML({tag:"span"}, place);
			}
			k--;
			this.list[type][response[i].seo]=makeHTML({tag:"a", innerHTML:response[i].name || "null", value:i, onclick:function(){_this.checkbox(this);}}, span);
		}
	},
	make_filters:function(response, place, type){
		var _this=this;
		for(var i in response){
		/*	if(!this.res["categories"][i]) continue; */
			var span=makeHTML({tag:"span"}, place);
			/* makeHTML({tag:"div", className:"gmw_hdr", innerHTML:this.res["categories"][i].name || "null"}, span); */
			var items=response[i];
		
			for(var i in items){
				this.list[type][items[i].seo]=makeHTML({tag:"a", innerHTML:items[i].name || "null", value:i, onclick:function(){_this.checkbox(this);}}, span);
			}
		}
	},
	showhide:function(obj, b){
		var bb=b!=undefined ? b : this[obj.type].style.display!="block";
		this[obj.type].style.display=bb?"block":"block";
		this[obj.arr].className=bb?"gmw_act":"";
		if(b!=undefined) return false;
		if(obj.type=="block"){ if(this.but_b) this.showhide(this.but_b, 0);}
		else this.showhide(this.but_a, 0);
		return false;
	},
	showhideclick:function(obj, b){
		var bb=b!=undefined ? b : this[obj.type].style.display!="block";
		this[obj.type].style.display=bb?"block":"none";
		this[obj.arr].className=bb?"gmw_act":"";
		if(b!=undefined) return false;
		if(obj.type=="block"){ if(this.but_b) this.showhide(this.but_b, 0);}
		else this.showhide(this.but_a, 0);
		return false;
	},
	checkbox:function(obj){
		if(!obj) return false;
		obj.checked=obj.checked?false:true;
		obj.className=obj.checked?"gmw_act":"";
		this.set_url();
		return false;
	},
	get_addr:function(point, marker, holder){
		if(geocoder)
		geocoder.getLocations(
			point.lat+", "+point.lon,
			function(res){
				holder.innerHTML=marker.addr=res.Placemark[0].address;
			}
		);
		return "...";
	},
	set_url:function(point, marker, holder){
		var url=this.EXT_PARAMS["base"]+this.EXT_PARAMS["submit_url"];
		url+=this.make_url_params("areas");
		url+=this.make_url_params("filter");
		url+=this.make_url_params("categories");
		
		/* detail links */
		this.but_submit_a1.href=url;
		if(this.but_submit_b){
			this.but_submit_b.href=url;
		}
		/* area links */
		this.but_submit_a2.href=url;
		if(this.but_submit_b){
			this.but_submit_b.href=url;
		}
	},
	make_url_params:function(type){
		var url="";
		for(var i in this.list[type]){
			if(this.list[type][i].checked){
				if(url) url+="&";
				url+=i;
			}
		}
		return (url?url:"-")+"/";
	},
	parse_url:function(type){
		for(var i in this.url_items[type]){
			this.checkbox(this.list[type][this.url_items[type][i]]);
		}
	}
};



// universal HTML creator
function makeHTML(OBJ,root,before){
	var tag=root;
	for(var i in OBJ){
		if(i=="tag") tag=document.createElement(OBJ[i]);
		else if(i=="append") 
			for(var j in OBJ[i]){ 
				if(OBJ[i][j].tag) 
					tag.appendChild(makeHTML(OBJ[i][j]));
			}
		else if(tag) tag[i]=OBJ[i];
	}
	if(root && root!=tag){
		if(before) root.insertBefore(tag, before);
		else root.appendChild(tag);
	}
	return tag;
};



function addEvent(el, evname, func) {
	if(!el["on"+evname] && el!=window && el!=document) return el["on"+evname]=func;
	if(el.attachEvent) el.attachEvent("on"+evname, func); // IE
	else if(el.addEventListener) el.addEventListener(evname, func, true); // Gecko / W3C
	else el["on"+evname]=func;
};

var BROWSER={
	ie:document.all && !window.opera,
	ie6:navigator.appVersion.indexOf("MSIE 6")!=-1,
	ie7:navigator.appVersion.indexOf("MSIE 7")!=-1,
	chrome:navigator.appVersion.indexOf("Chrome")!=-1,
	safari:navigator.appVersion.indexOf("Safari")!=-1 && navigator.appVersion.indexOf("Chrome")==-1,
	opera:window.opera
};

(AJAX=function(opt){this.init.apply(this, arguments)}).prototype={
	
	CACHE:{},
	
	init:function(opt){
		opt=opt || {};
		this.method=opt.method || "http";
		this.file=opt.file || "";
		this.query=opt.query || "";
		this.caching=opt.caching || false;
		this.hash=opt.hash || {};
		this.onready=opt.onready || function(){};
		if(opt.onready) this.send();
	},
		
	send:function(){
		//add hash to query
		this.query+=this.json2query(this.hash);
		//if cache==true > call data from cache & return
		try{if(this.caching && this.CACHE[this.query]) return this.ondata(this.CACHE[this.query]);}catch(e){};
		
		var _this=this;
		var request, response;
		var SID=(new Date()).getTime()+Math.round(Math.random()*1000);
		
		switch(this.method){
			case "http":
				request=window.XMLHttpRequest?new XMLHttpRequest():(new ActiveXObject("Msxml2.XMLHTTP") || null); // ||"Microsoft.XMLHTTP" - ie5x
				if(request){
					request.open('POST', this.file, true);
					request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); // $_POST[] || $_REQUEST[]
					request.onreadystatechange=function(){
						if(request.readyState==4){
							try{
								if(request.getResponseHeader('Content-Type') && request.getResponseHeader('Content-Type').indexOf("/xml")!=-1) 
									response=_this.xml2json(request); //xml
								else 
									response=(new Function('return '+request.responseText))(); //json
							}
							catch(e){_this.onerror(request.responseText)}
							_this.ondata(response);
						}
					};
					request.send(this.query); //request send 
					break;
				}
				
			case "script":
				request=document.createElement("script");
				if(request){
					request.id=SID;
					var src=this.file+"?"+"_scriptID_="+request.id+"&"+this.query;
					if(BROWSER.ie) request.src=src.substr(0,2048); //MAX msie:2kb
					else{request.src=src; request.src=request.src.substr(0,4096)}; //MAX gesko:4Kb
					request.onreadystatechange=function(response){
						if(response && !response.initEvent){
							_this.ondata(response);
							setTimeout(function(){request.parentNode.removeChild(request)},13);
						}
					};
					document.body.appendChild(request); //request send 
					break;
				}
				
			default: return request;
		}
	},
	
	ondata:function(response){
		if(this.caching || this.CACHE[this.query]) this.CACHE[this.query]=response; //cache response data
		this.response=response;
		this.onready(response);
	},
	
	json2query:function(hash, pref){
		var query="";
		for(var i in hash){
			if(!i) continue;
			var key=(pref?pref+"["+i+"]":i);
			query+=(typeof hash[i]=="object" ? this.json2query(hash[i],key) : "&"+key+"="+hash[i].toString().replace(/&/g, "%26"));
		}
		return query;
	},
	
	xml2json:function(request){
		var parseXML=function(node){
			if(node.childNodes.length==1 && (node.firstChild.nodeType==3 || node.firstChild.nodeType==4)) return node.firstChild.data; //if text node
			var hash={};
			for(var i=0, childs=node.childNodes, l=childs.length; i<l; i++)
				if(childs[i].nodeType==1)
					if(hash[childs[i].tagName]){ //if node has array type
						if(typeof hash[childs[i].tagName]=="string" || (typeof hash[childs[i].tagName]=="object" && !hash[childs[i].tagName].length)) 
							hash[childs[i].tagName]=[hash[childs[i].tagName]]; //reinit node (set array type)
						hash[childs[i].tagName][hash[childs[i].tagName].length]=parseXML(childs[i]);
						}
					else hash[childs[i].tagName]=parseXML(childs[i]);
			return hash;
		};
		var doc=BROWSER.ie?request.responseXML:(new DOMParser()).parseFromString(request.responseText, "text/xml"); //get XML content
		var response={obj:{}, text:''};
		if(doc && doc.documentElement) response.obj=parseXML(doc);
		
		return response;
	},
	
	/* onerror:function(message){alert("Server output error...\n"+message) */
	  onerror:function(message){ 
	
	}
};



/*
Array.prototype.toString =
Object.prototype.toString = function() {
	var cont = [];
	var addslashes=function(s){return s.split('\\').join('\\\\').split('"').join('\\"');};
	for (var k in this) { 
		if (cont.length) cont[cont.length-1] += ",";
		var v = this[k];
		var vs = ''; 
		if (v.constructor == String) vs = '"' + addslashes(v) + '"';
		else vs=v.toString();
		cont[cont.length]=k + ": " + vs;
	}
	cont = "	" + cont.join("\n").split("\n").join("\n	");
	var s = cont;
	if (this.constructor == Object) s = "{\n"+cont+"\n}";
	if (this.constructor == Array) s = "[\n"+cont+"\n]";
	return s;
};

*/