/*****************************************************
Function: add/remove elements from the document
******************************************************/

function removeElement(parentID,elementID){
	var parent = document.getElementById(parentID);
	var child = document.getElementById(elementID);

	parent.removeChild(child);
}
function addElement(parentID,elementID,elementType){
	var newElement = document.createElement(elementType);
	newElement.setAttribute('id',elementID);
	var parent = document.getElementById(parentID);
	
	parent.appendChild(newElement);
}

function font_size_adjust(size) {
	var i = 1;
	while($('video'+i) != null) {
		$('video'+i).style.fontSize = size;	
		i++;
	}
	
	if($('font_size') != null) {
		$('font_size').style.fontSize = size;
	}
	
	if($('linksSheetDiv') != null){
		$('linksSheetDiv').style.fontSize = size;
	}
	//divdate, divevent, day
	var elements = document.getElementsByName("dvdate");
	var i = 0;
	for(i=0; i<elements.length; i++) {
		elements[i].style.fontSize = size;
	}

}


function addElementTop(parentID,elementID,elementType,content){
	var newElement = document.createElement(elementType);
	newElement.setAttribute('id',elementID);
	var parent = document.getElementById(parentID);
	
	var list = parent.getElementsByTagName("div");
	
	if(list.length ==0){
		parent.appendChild(newElement);
	}else{	
		parent.insertBefore(newElement,list[0]);
	}
	
	newElement.innerHTML = content;	
}

function setElementAttribute(id,stype,text){
	var element = document.getElementById(id);
	
	element.setAttribute(stype,text);
}
/*****************************************************
Function: confirm delete
******************************************************/
function confirmDelete(delUrl) {
  if (confirm("Are you sure you want to delete?")) {
    document.location = delUrl;
  }
}


function checkPaper(){
	var paper = $("Paper");
	if(!paper.value){
		alert("Please enter how many paper entries there are");
		return false;
	}else{
		var agree = confirm("Selecting a winner will close the competition. No more entries will be allowed. Do you want to continue?");
		
		if(agree){
			return true;
		}else{
			return false;
		}
	}
}

/*****************************************************
Function: validate form
******************************************************/
function validateForm(formName) {
	
	if(formName == 'EnquiryAddEdit') {
		if($('event_title').value == '') {
			alert('Please enter your name.');
			return false;
		}
		if(!CheckEmail('address_email')) {
			return false;
		}
		if($('event_text').value == '') {
			alert('Please leave us a message.');
			return false;
		}
		
		return true;
	}
	
	if(formName == 'RequestAQuote') {
		if($('event_title').value == '') {
			alert('Please enter your name.');
			return false;
		}
		if($('address_mobile').value == '') {
			alert('Please enter a contact mobile number.');
			return false;
		}
		if($('address_address2').value == '') {
			alert('Please enter a destination.');
			return false;
		}
		if($('address_address1').value == '') {
			alert('Please enter a pickup address.');
			return false;
		}
		if(!CheckEmail('address_email')) {
			return false;
		}
		if($('event_start_date').value == '') {
			alert('Please enter the a pickup date.');
			return false;
		}
		if($('event_end_date').value == '') {
			alert('Please enter a return date.');
			return false;
		}
		return true;
	}
	
	if(formName == 'KeywordSearch') {
		if($('keyword_search').value == '') {
			alert('Enter some keywords.');
			return false;
		}
		return true;
	}
	
	if(formName == 'AddEditVehicle') {
		if($('event_title').value == '') {
			alert('Please enter the vehicle name.');
			return false;
		}
		if($('address_address1').value == '') {
			alert('Please enter a short description.');
			return false;
		}
		return true;
	}
	
	if(formName == 'ContactUs') {
		if($('FirstName').value == '') {
			alert('Please enter your first name.');
			return false;
		}
		if($('LastName').value == '') {
			alert('Please enter your last name.');
			return false;
		}
		if($('Email').value == '') {
			alert('Please enter your email address.');
			return false;
		}
		if($('Message').value == '') {
			alert('Please leave us a message.');
			return false;
		}
		return true;
	}
	
	//check the emails are valid and match
	//check the passwords are the same or empty if ID is set
	if(formName == 'UsersAddEdit') {
		
		if(!CheckEmail('users_email')) {
			return false;
		}
		
		if($('users_firstname').value == '') {
			alert('Please enter a first name.');
			return false;
		}
		
		if($('users_lastname').value == '') {
			alert('Please enter a last name.');
			return false;
		}
			
		if($('users_password').value != $('ReEnterPassword').value){
			alert('Passwords do not match.');
			return false;
		}
		
		if($('users_id') != null) {
			if(!$('users_id').value && $('users_password').value == '' && $('ReEnterPassword').value == '') {
				alert('Enter a password.');
				return false;
			}	
		}
		else {
			if($('users_password').value == '' && $('ReEnterPassword').value == '') {
				alert('Enter a password.');
				return false;
			}
		}
		
		return true;
	}
	
	if(formName == 'AddEditTrader') {
		if($('event_title').value == '') {
			alert('Please enter the trader name.');
			return false;
		}
		if($('address_phone').value == '') {
			alert('Please enter the traders phone number.');
			return false;
		}
		if($('address_address1').value == '') {
			alert('Please enter the traders address.');
			return false;
		}
		if($('address_suburb').value == '') {
			alert('Please enter the traders suburb.');
			return false;
		}
		if($('address_postcode').value == '') {
			alert('Please enter the traders postcode.');
			return false;
		}
		if(!CheckEmail('address_email')) {
			return false;
		}
		
		return true;
	}
	
	
	if(formName == 'AddEditEvent') {
		if($('event_title').value == '') {
			alert('Please enter the event title.');
			return false;
		}
		if($('event_start_date').value == '') {
			alert('Please enter the event start date.');
			return false;
		}
		if($('event_end_date').value == '') {
			alert('Please enter the event end date.');
			return false;
		}
		return true;
	}
	
	if(formName == 'AddEditNews') {
		if($('event_title').value == '') {
			alert('Please enter the event title.');
			return false;
		}
		if($('event_start_date').value == '') {
			alert('Please enter the event start date.');
			return false;
		}
		return true;
	}
	
}

var search_clear = false;

/*****************************************************
Function: redirect to page
*****************************************************/
function redirect(page){
	if(page) document.location.href = page;	
}
/*****************************************************
Function: check value agains regular expression
******************************************************/
function checkRegExpress(reg,id,format){
	var element = document.getElementById(id);
	
	if(!element.value.match(reg)){
		showError(format);
		return false;
	}else{
		return true;	
	}
}

/*****************************************************
Function: show hide registration info
******************************************************/
function showHideWithImg(element,imageElement){
	var div = document.getElementById(element);
	var image = document.getElementById(imageElement);
	
	if(div.style.display == 'none'){ // show the div and put image to "-"
		div.style.display = 'block';
		image.src = "../images/buttons/minus.gif";
	}else{
		div.style.display = 'none';
		image.src = "../images/buttons/plus.gif";
	}
}

/*****************************************************
Function: show/hide div
******************************************************/
function showHideElement(element,bstate){ //state: true = show ; false = hide
	var div = document.getElementById(element);
	
	if(bstate){
		div.style.display = 'block';
	}else{
		div.style.display = 'none';
	}
}

function showHideElementAuto(element){ //state: true = show ; false = hide
	var div = document.getElementById(element);
	
	if(div.style.display == 'none'){
		div.style.display = 'block';
	}else{
		div.style.display = 'none';
	}
}

function fadeDiv(divID){
	new Effect.Opacity(divID, { from: 1.0, to: 0, duration: 0.5 });	
}

/*****************************************************
Function: page information
******************************************************/
if(document.all) { 
	document.onmousemove = UpdateCursorPositionDocAll; 
}else {
	document.onmousemove = UpdateCursorPosition; 
}

var cX = 0; var cY = 0;

function UpdateCursorPosition(e){
	cX = e.pageX; 
	cY = e.pageY;
}
function UpdateCursorPositionDocAll(e){
	cX = event.clientX; 
	cY = event.clientY;
}


function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = window.innerWidth + window.scrollMaxX;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	

	if (self.innerHeight) {	// all except Explorer
		if(document.documentElement.clientWidth){
			windowWidth = document.documentElement.clientWidth; 
		} else {
			windowWidth = self.innerWidth;
		}
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = xScroll;		
	} else {
		pageWidth = windowWidth;
	}

	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}
function getPageScroll(){

	var xScroll, yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
		xScroll = self.pageXOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
		xScroll = document.documentElement.scrollLeft;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
		xScroll = document.body.scrollLeft;	
	}

	arrayPageScroll = new Array(xScroll,yScroll) 
	return arrayPageScroll;
}

/*****************************************************
Function: check to see if an element is in an array
******************************************************/
function inArray(arr,value){
	var found = false;
	
	for(x in arr){
		if(arr[x] == value){
			found = true;
			break;
		}
	}
	
	return found;
}

/*****************************************************
Function: get vars from URL
******************************************************/
function getURLHash() {
	var q = document.location.hash;
	if(q) {
		alert(q.substring(1,q.length));
	}
	return "";
}

function go(url,w,h) {
	var dim = eval('"width=' + w + ',height=' + h + ',toolbar=0, location=0,directories=0,status=0, menubar=0,scrollbars=0,resizable=0"');
	Npop = window.open(url,"instruct",dim);
	Npop.moveTo(0,0);
	oldWin = Npop.opener;
}

function goScroll(url,w,h) {
	var dim = eval('"width=' + w + ',height=' + h + ',toolbar=0, location=0,directories=0,status=0, menubar=0,scrollbars=1,resizable=0"');
	Npop = window.open(url,"instruct",dim);
	oldWin = Npop.opener;
}

function goEverything(url,w,h) {
	var dim = eval('"width=' + w + ',height=' + h + ',toolbar=1, location=1,directories=1,status=1, menubar=1,scrollbars=1,resizable=1"');
	Npop = window.open(url,"instruct",dim);
	oldWin = Npop.opener;
}

function showHideAnimated(div, links, path){
	
	//change div around to fit browser and
	//use different gif for plus minus
	
	// /images/boxes/minus_sand.jpg
	
	
	var minus_button = '';
	if(path == 'riverine') {
		var minus_button = '/images/boxes/minus_green.jpg';
		var plus_button = '/images/boxes/plus_green.jpg';
	}
	else if(path == 'lower') {
		var minus_button = '/images/boxes/minus_sand.jpg';
		var plus_button = '/images/boxes/plus_sand.jpg';
	}
	else if(path == 'pipeline') {
		var minus_button = '/images/boxes/minus_blue.jpg';
		var plus_button = '/images/boxes/plus_blue.jpg';
	}
	else if(path == 'industry') {
		var minus_button = '/images/boxes/minus_ochre.jpg';
		var plus_button = '/images/boxes/plus_ochre.jpg';
	}
	else if(path == 'publications') {
		var plus_button = '/images/content/plus.gif';
		var minus_button = '/images/content/minus.gif';
	}
	
	
	var temp = $(div);
	if(temp.style.display == 'none'){
		Effect.BlindDown(div);
		//temp.style.display = 'block';
		$(div+'link').src = minus_button;
		return false;
	}else{
		Effect.BlindUp(div);
		//temp.style.display = 'none';
		$(div+'link').src = plus_button;
		return false;
	}
}

function newsletter_signup(name, email) {
	if(name == '') {
		alert('Please enter your name.');
		return false;
	}
	if(!CheckEmail('newsletter_email')) {
		return false;
	}
	$('newsletter_signup').innerHTML = '<img src="/images/ajax-loader.gif">';
	var vars = "Action=NewsletterSignup&name="+name+"&email="+email;
	new Ajax.Request('/includes/handler.php', {parameters:vars, onSuccess:success_news});
}

function success_news(t) {
	$('newsletter_signup').innerHTML = t.responseText;
}
function CheckEmail(sEmail){
	str = document.getElementById(sEmail).value;
	var Errors = false;
	var Emailerrors = false;
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	if(str == ""){
		Emailerrors = true;	
	}
	if (str.indexOf(at)==-1){
	  Emailerrors = true;
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   Emailerrors = true;
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		Emailerrors = true;
	}

	 if (str.indexOf(at,(lat+1))!=-1){
		Emailerrors = true;
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		Emailerrors = true;
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
		Emailerrors = true;
	 }
	
	 if (str.indexOf(" ")!=-1){
		Emailerrors = true;
	 }
	 if(Emailerrors){
		alert("Sorry, your email address is invalid!");
		return false;
	 }else{
		return true;	 
	 }
}