// JavaScript Document
var xmlHttp;
var response;
var update=true;
var map;
var lat;
var lon;
var chart_index=0;
var xmlDoc=null;
var parser=null;
var overlays = [];


function create_map(target) {
	map=create(target);
}

function update_map(lat,lon,zoom) {
//	alert("lat: "+lat+" Lon: "+lon);
return;
	telmap_setcenter(map,lat,lon,zoom);
}

function overlay_map(statefips,countyfips,zip,zoom) {
	overlay(map,statefips,countyfips,zip,zoom);
}

function atlas_unload() {
	cleanup("state_links");
	cleanup("city_links");
	cleanup("zip_links");
	map_cleanup(map);
	swfobject.removeSWF("explorer_chart");
}

function cleanup(target) {
	 var t=document.getElementById(target);
	
	while(t.hasChildNodes()) {
		t.removeChild(t.lastChild);
	}
}

function update_list(div,type) {
	
	var state=document.getElementById("state").value;
	var county=document.getElementById("county").value;
	var zip=document.getElementById("zip").value;
	
	var script_url=nav_ajax_location+'?c=get_list&type='+type+"&state="+state+"&county="+county+"&zip="+zip;

	var r=doAjax(script_url);
	
	document.getElementById(div).innerHTML=r;
}

function get_counties_select(target,state) {

	var script_url='explorer_ajax.php?c=get_county_select&state='+state;

	var r=doAjax(script_url);
	var county_select=document.getElementById(target);
	
	county_select.innerHTML=r;
	
	if(update) {
		get_chart_data('atlas_vote_count.php?x=',state,'','');
		
		if(state > 0) {
			overlay_map(state,'','',7);
		}else{
			overlay_map('','','',4);
		}
	}
}

function search_city(target,city) {

	var script_url=nav_ajax_location+'?c=search_city&search='+city;
	
	var r=doAjax(script_url);
	var xmlDoc=get_xml_doc(r);

	var node;
  	var t=document.getElementById(target);
	
	while(t.hasChildNodes()) {
		t.removeChild(t.lastChild);
	}

    var result = xmlDoc.documentElement.getElementsByTagName("result");
	var state;
	var statefips;
	var countyfips;
	var city;
	var county;
	var a =[];

	if(result.length > 0) {
		cleanup("state_links");
		cleanup("city_links");
		cleanup("zip_links");
	}else{
		return false;
	}
	
	for(var i = 0; i < result.length; i++) {
		state=result[i].getElementsByTagName("state")[0].childNodes[0].nodeValue;
		state_name=result[i].getElementsByTagName("state_name")[0].childNodes[0].nodeValue;
		statefips=result[i].getElementsByTagName("statefips")[0].childNodes[0].nodeValue;
		county=result[i].getElementsByTagName("county")[0].childNodes[0].nodeValue;
		countyfips=result[i].getElementsByTagName("countyfips")[0].childNodes[0].nodeValue;
		city=result[i].getElementsByTagName("city")[0].childNodes[0].nodeValue;
		//lat=result[i].getElementsByTagName("lat")[0].childNodes[0].nodeValue;
		//lon=result[i].getElementsByTagName("lon")[0].childNodes[0].nodeValue;
		
		a[i]=document.createElement("a");

		a[i].onclick=function() {
			//alert(countyfips);
			var splitup=this.id.split("-");
			update=false;
			/*
			get_chart_data('atlas_vote_count.php?x=',splitup[0],splitup[1],'');
			get_zip_select('zip',splitup[0],splitup[1]);
			get_counties_select('county',splitup[0]);
			
			set_state(splitup[0]);
			set_county(splitup[1]);
			*/
			
			//update_selects(splitup[0],splitup[1]);
			
			get_chart_data('atlas_vote_count.php?x=',splitup[0],splitup[1],'');
			set_zip_links('zip_links',splitup[0],splitup[1]);
			update_selects(splitup[0],splitup[1],'');
			
			update=true;
			
			return false;
		}
		
		a[i].setAttribute("href","#");
		a[i].id=statefips+"-"+countyfips;
		a[i].innerHTML=state+" - "+city+" ("+county+")<br>";
		t.appendChild(a[i]);
		
		set_county_onclick(a[i].id);
		set_state_link(state_name,statefips);
	}
	
	if(result.length == 1) {
		update=false;
		
		get_chart_data('atlas_vote_count.php?x=',statefips,countyfips,'');
		update_selects(statefips,countyfips,'');
		set_zip_links('zip_links',statefips,countyfips);
		//update_map(lat,lon,10);
		overlay_map(statefips,countyfips,'',10);
		update=true;	
	}
	
	return false;
	//document.getElementById(target).innerHTML=r;
}

function update_selects(state,county,zip) {
	update=false;
	state_select=document.getElementById('state_select');
	county_select=document.getElementById('county_select');
	zip_select=document.getElementById('zip_select');
	
	if(county_select == null) {
		get_counties_select('county',state,county);
		county_select=document.getElementById('county_select');
	}	
	
	if(state_select.value != state && state != '') {
		set_state(state);
	}
	/*
	if(county_select.value != county && county != '') {
		set_county(state,county);
	}
	
	if(zip_select == null) {
		get_zip_select('zip',state,county);
		zip_select=document.getElementById('zip_select');
	}
	
	if(zip_select.value != zip && zip != '') {
		set_zip(state,county,zip);
	}
	
	if(zip == '') {
		get_zip_select('zip',state,county);
	}
	*/
	update=true;
}

//////////////////////////////////////////////////
// STATE
//////////////////////////////////////////////////

function set_state(state) {
	list=document.getElementById('state_select');
	
	var opts=list.getElementsByTagName("option");
	
	for(var i=0;i<opts.length;i++) {
		if(opts[i].value == state) {
			opts[i].selected="true";
		}
	}
}

function set_state_link(state,statefips) {
	
	var target=document.getElementById("state_links");
	
	var links=target.getElementsByTagName("a");
	
	for(i=0;i<links.length;i++) {
		if(links[i].id == statefips) {
			return;
		}
	}
	
	a=document.createElement("a");
	a.setAttribute("href","#");
	a.id=statefips;
	a.style.marginRight = "10px";
	a.innerHTML=state+"<br>";
	target.appendChild(a);
	
	a.onclick=function() {
		//alert(countyfips);
		var state=this.id;
		update=false;
		
		get_chart_data(chart_ajax_location+'?x=',state,'','');
		//set_zip_links('zip_links',splitup[0],splitup[1]);
		set_state(state);
		overlay_map(state,'','',7);
		update=true;
		
		return false;
	}
}

////////////////////////////////////////////////
// COUNTY
////////////////////////////////////////////////
function set_county(state,county) {
	return;
	list=document.getElementById('county_select');
	var opts=list.getElementsByTagName("option");
	
	if(opts[0].id != state) {
		get_counties_select('county',state);
		list=document.getElementById('county_select');
		opts=list.getElementsByTagName("option");
	}

	for(var i=0;i<opts.length;i++) {
		if(opts[i].value == county) {
			opts[i].selected="true";
		}
	}
	//overlay_map(state,county,'',10);
}

function set_county_onclick(element) {
	a=document.getElementById(element);
	
	a.onclick=function() {
		update=false;
		var splitup=this.id.split("-");
		var statefips=splitup[0];
		var countyfips=splitup[1];
		
		get_chart_data(chart_ajax_location+'?x=',statefips,countyfips,'');
		set_zip_links('zip_links',statefips,countyfips);
		update_selects(statefips,countyfips,'');
		overlay_map(statefips,countyfips,'',10);
		update=true;
		return false;
	}
}

////////////////////////////////////////////////
// ZIP
////////////////////////////////////////////////
function get_zip_select(target,state,county) {
	
	//var script_url=nav_ajax_location+'?c=get_zip_select&state='+state+'&county='+county;

	//var r=doAjax(script_url);
	
	//document.getElementById(target).innerHTML=r;
	
	if(update) {
		get_chart_data(chart_ajax_location+'?x=',state,county,'');
		overlay_map(state,county,'',10);
	}
}

function get_zip(target,zip) {
	get_chart_data('atlas_vote_count.php?x=','','',zip);
}

function set_zip(state,county,zip) {
	list=document.getElementById('zip_select');
	var opts=list.getElementsByTagName("option");
	var found=false;
	
	for(var i=0;i<opts.length;i++) {
		if(opts[i].value == zip) {
			found=true;
			opts[i].selected="true";
		}
	}
	
	if(!found) {
		get_zip_select('zip',state,county);
		list=document.getElementById('zip_select');
		opts=list.getElementsByTagName("option");
		found=false;
	
		for(var i=0;i<opts.length;i++) {
			if(opts[i].value == zip) {
				found=true;
				opts[i].selected="true";
			}
		}	
	}
}

function set_zip_links(target,state,county) {
	return false;
	var script_url=nav_ajax_location+'?c=search_countyid&state='+state+'&county='+county;
	
	var r=doAjax(script_url);
	var xmlDoc=get_xml_doc(r);
	var t=document.getElementById(target);
	var links=t.getElementsByTagName("a");
	
	while(t.hasChildNodes()) {
		t.removeChild(t.lastChild);
	}
	
    var result = xmlDoc.documentElement.getElementsByTagName("result");
	var zip;
	var a =[];
	
	for(var i = 0; i < result.length; i++) {
		zip=result[i].getElementsByTagName("zip")[0].childNodes[0].nodeValue;
		//lat=result[i].getElementsByTagName("lat")[0].childNodes[0].nodeValue;
		//lon=result[i].getElementsByTagName("lon")[0].childNodes[0].nodeValue;
		
		a[i]=document.createElement("a");

		a[i].setAttribute("href","#");
		a[i].id=state+"-"+county+"-"+zip;
		a[i].style.marginLeft='10px';

		if(i%3) {
			a[i].innerHTML=zip;
		}else{
			a[i].innerHTML=zip+"<br>";
		}
		
		t.appendChild(a[i]);
		set_zip_onclick(a[i].id);
	}
	
	return false;
}

function set_zip_onclick(element) {
		 document.getElementById(element).onclick=function() {
			//alert(countyfips);
			update=false;
			
			var splitup=this.id.split("-");

			update=false;
			var state=splitup[0];
			var county=splitup[1];
			var zip=splitup[2];
			
			update_selects(state,county,zip);
			overlay_map(state,county,zip,12);
			update=true;
			
			return false;
		}
}

///////////////////////////////////////////////////////
/// CHART 
///////////////////////////////////////////////////////
function get_chart_data(base_url,state,county,zip) {
	var url=base_url+'&state='+state+'&county='+county+'&zip='+zip;
	
	var r=doAjax(url);

	if(r == '') {
		return;
	}
	
	tmp=findSWF("explorer_chart");
	
	var new_data=eval("(" + r + ")" );

//chart_data["elements"][0]["values"][++chart_index]=new_data["elements"][0]["values"][0];
	//chart_data["x_axis"]["labels"]["labels"][chart_index]=new_data["x_axis"]["labels"]["labels"][0];
	/*
	chart_data["elements"][0]["values"]=[];
	chart_data["x_axis"]["labels"]["labels"]=[];
	
	for(var i=0;i < new_data["elements"][0]["values"].length;i++) {
		chart_data["elements"][0]["values"][i]=new_data["elements"][0]["values"][i];
		chart_data["x_axis"]["labels"]["labels"][i]=new_data["x_axis"]["labels"]["labels"][i];
	}
	
	x=tmp.load(JSON.stringify(chart_data)); */
	x=tmp.load(JSON.stringify(new_data));
}

function get_chart_data_onload() {
	var geturl=chart_ajax_location+'?foo=';
	
	var r=doAjax(geturl);

	return r;
}

function refresh_chart(localeid) {

}

function get_xml_doc(xmlstring) {
	
	try //Internet Explorer
  	{
		if(xmlDoc == null) {
	  		xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
  			xmlDoc.async="false";
		}
 		xmlDoc.loadXML(xmlstring);
  	}
	catch(e)
  	{
  		try // Firefox, Mozilla, Opera, etc.
    	{
			if(parser == null) {
	    		parser=new DOMParser();
			}
    		xmlDoc=parser.parseFromString(xmlstring,"text/xml");
    	}
  		catch(e)
    	{
    		alert("Error:"+e.message);
    		return false;
    	}
	}
	
	return xmlDoc;
}

function urlencode( str ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Philip Peterson
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: AJ
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: travc
    // +      input by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Lars Fischer
    // +      input by: Ratheous
    // %          note 1: info on what encoding functions to use from: http://xkr.us/articles/javascript/encode-compare/
    // *     example 1: urlencode('Kevin van Zonneveld!');
    // *     returns 1: 'Kevin+van+Zonneveld%21'
    // *     example 2: urlencode('http://kevin.vanzonneveld.net/');
    // *     returns 2: 'http%3A%2F%2Fkevin.vanzonneveld.net%2F'
    // *     example 3: urlencode('http://www.google.nl/search?q=php.js&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-US:unofficial&client=firefox-a');
    // *     returns 3: 'http%3A%2F%2Fwww.google.nl%2Fsearch%3Fq%3Dphp.js%26ie%3Dutf-8%26oe%3Dutf-8%26aq%3Dt%26rls%3Dcom.ubuntu%3Aen-US%3Aunofficial%26client%3Dfirefox-a'
                             
    var hash_map = {}, unicodeStr='', hexEscStr='';
    var ret = (str+'').toString();
    
    var replacer = function(search, replace, str) {
        var tmp_arr = [];
        tmp_arr = str.split(search);
        return tmp_arr.join(replace);
    };
    
    // The hash_map is identical to the one in urldecode.
    hash_map["'"]   = '%27';
    hash_map['(']   = '%28';
    hash_map[')']   = '%29';
    hash_map['*']   = '%2A';
    hash_map['~']   = '%7E';
    hash_map['!']   = '%21';
    hash_map['%20'] = '+';
    hash_map['\u00DC'] = '%DC';
    hash_map['\u00FC'] = '%FC';
    hash_map['\u00C4'] = '%D4';
    hash_map['\u00E4'] = '%E4';
    hash_map['\u00D6'] = '%D6';
    hash_map['\u00F6'] = '%F6';
    hash_map['\u00DF'] = '%DF';
    hash_map['\u20AC'] = '%80';
    hash_map['\u0081'] = '%81';
    hash_map['\u201A'] = '%82';
    hash_map['\u0192'] = '%83';
    hash_map['\u201E'] = '%84';
    hash_map['\u2026'] = '%85';
    hash_map['\u2020'] = '%86';
    hash_map['\u2021'] = '%87';
    hash_map['\u02C6'] = '%88';
    hash_map['\u2030'] = '%89';
    hash_map['\u0160'] = '%8A';
    hash_map['\u2039'] = '%8B';
    hash_map['\u0152'] = '%8C';
    hash_map['\u008D'] = '%8D';
    hash_map['\u017D'] = '%8E';
    hash_map['\u008F'] = '%8F';
    hash_map['\u0090'] = '%90';
    hash_map['\u2018'] = '%91';
    hash_map['\u2019'] = '%92';
    hash_map['\u201C'] = '%93';
    hash_map['\u201D'] = '%94';
    hash_map['\u2022'] = '%95';
    hash_map['\u2013'] = '%96';
    hash_map['\u2014'] = '%97';
    hash_map['\u02DC'] = '%98';
    hash_map['\u2122'] = '%99';
    hash_map['\u0161'] = '%9A';
    hash_map['\u203A'] = '%9B';
    hash_map['\u0153'] = '%9C';
    hash_map['\u009D'] = '%9D';
    hash_map['\u017E'] = '%9E';
    hash_map['\u0178'] = '%9F';
    
    // Begin with encodeURIComponent, which most resembles PHP's encoding functions
    ret = encodeURIComponent(ret);
 
    for (unicodeStr in hash_map) {
        hexEscStr = hash_map[unicodeStr];
        ret = replacer(unicodeStr, hexEscStr, ret); // Custom replace. No regexing
    }
    
    // Uppercase for full PHP compatibility
    return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
        return "%"+m2.toUpperCase();
    });
}