// JavaScript Document

function addEvents() {
	if(document.getElementById('location_edit_link').addEventListener) {
		document.getElementById('location_edit_link').addEventListener('click',editLocation,false);}
	if(document.getElementById('location_edit_link').attachEvent) {
		document.getElementById('location_edit_link').attachEvent('onclick',editLocation);}}

function addTime() {
	var falls = document.getElementById('falls_name').innerHTML;
	var url = "http://waterfalls.jacobemerick.com/php/checktime.php?falls="+escape(falls)+"&sid="+Math.random();
	try {
		xmlHttp=new XMLHttpRequest();}
	catch(e) {
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");}
		catch(e) {
			try {
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");}
			catch(e) {
				alert("Your browser does not support AJAX. We cannot save a new location for you.");
				return false;}}}
	xmlHttp.onreadystatechange = function() {
		if(xmlHttp.readyState==4) {
			document.getElementById('drive_time').innerHTML = xmlHttp.responseText;}}
	xmlHttp.open('get',url,true);
	xmlHttp.send(null);
	return true;}

function editLocation() {
	var currentLocation = document.getElementById('location').innerHTML;
	var editLocationHtml = '<input id="location_input" type="text" name="location" value="'+currentLocation+'" /> (<a href="Javascript: //Saves the default location" id="location_save_link">save</a>)<br /><span class="tiny">Provide an address, city/state, or zip</span>';
	document.getElementById('location_span').innerHTML = editLocationHtml;
	if(document.getElementById('location_save_link').addEventListener) {
		document.getElementById('location_save_link').addEventListener('click',saveLocation,false);}
	if(document.getElementById('location_save_link').attachEvent) {
		document.getElementById('location_save_link').attachEvent('onclick',saveLocation);}}

function saveLocation() {
	var loc = document.getElementById('location_input').value;
	var url = "http://waterfalls.jacobemerick.com/php/setcookie.php?loc="+escape(loc)+"&sid="+Math.random();
	try {
		xmlHttp=new XMLHttpRequest();}
	catch(e) {
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");}
		catch(e) {
			try {
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");}
			catch(e) {
				alert("Your browser does not support AJAX. We cannot save a new location for you.");
				return false;}}}
	xmlHttp.onreadystatechange = function() {
		if(xmlHttp.readyState==4) {
			if(xmlHttp.responseText=='Geocode Error') {
				alert('There was an error with the address you entered. Please try again.');}
			else {
				document.getElementById('location_span').innerHTML = '<span id="location">'+xmlHttp.responseText+'</span> <span class="tiny">(<a href="Javascript: //Changes the default location" id="location_edit_link">change</a>)</span>';
				if(document.getElementById('drive_time')) {
					addTime();}
				addEvents();}}}
	xmlHttp.open('get',url,true);
	xmlHttp.send(null);
	return true;}

if(document.addEventListener) {
	document.addEventListener("DOMContentLoaded",addEvents,false);}
else {
	if (document.all && !window.opera){
		document.write('<script type="text/javascript" id="contentloadtag" defer="defer" src="javascript:void(0)"><\/script>');
		var contentloadtag=document.getElementById("contentloadtag");
		contentloadtag.onreadystatechange=function() {
			if (this.readyState=="complete") {
				addEvents();}}}}