//style Sheet Functions=========================================================
//==============================================================================
function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

//General Functions=============================================================
//==============================================================================

//Add guest functions ==========================================================
//==============================================================================

// clearForm -------------------------------------------------------------------
// -----------------------------------------------------------------------------
	function clearForm() {
		var firstName = $('guestFirstName');
		var lastName = $('guestLastName');		
		var company = $('guestCompany');		
		var email = $('guestEmail');
		var phone = $('guestPhone');
		var foodOptionR = $('guestFoodOptionR');
		var foodOptionV = $('guestFoodOptionV');
		
		firstName.value = '';
		lastName.value = '';		
		company.value = '';
		email.value = '';
		phone.value = '';
		foodOptionR.checked = 'true';
	} // createHiddenInput

// createHiddenInput ------------------------------------------------------------
//	creates a hidden input with name/value
// -----------------------------------------------------------------------------
	function createHiddenInput(name, value) {
		var input = document.createElement('input');
		input.setAttribute('type','hidden');		
		input.setAttribute('name', name);
		input.setAttribute('id', name);
		input.setAttribute('value', value);
		
		return input;
	} // createHiddenInput
	
// createX ---------------------------------------------------------------------
//	creates and X button
// -----------------------------------------------------------------------------
	function createX(id) {
			var div = document.createElement('div');
			//div.setAttribute('class', 'delete');
			
			var a = document.createElement('a');
			var text = document.createTextNode('X');			
			//var img = createImg('images/icon-delete.gif', 'Delete');
			
			//a.appendChild(img);
			a.appendChild(text);
			a.setAttribute('href', '#');
			a.setAttribute('class', 'deleteGuest');
			a.setAttribute('id', 'deleteGuest-' + id);
			div.appendChild(a);
			
		return div;
	}	// createX	

// createGuestListItem()
// -----------------------------------------------------------------------------
// adds a li to an existing ul or creates the ul if it doesn't exist.
// -----------------------------------------------------------------------------
	function createGuestListItem() {
	
		var id = $('guestId').value;
		var firstName = $('guestFirstName');
		var lastName = $('guestLastName');		
		var company = $('guestCompany');		
		var email = $('guestEmail');
		var phone = $('guestPhone');
		var foodOptionR = $('guestFoodOptionR');
		var foodOptionV = $('guestFoodOptionV');	
		
		//sort out food options
		if(foodOptionR.checked) {
			var foodOption = foodOptionR.value;
		} else {
			var foodOption = foodOptionV.value;
		}
		
		var li = document.createElement('li');
		li.setAttribute('id', 'guest-' + id);
		var text = document.createTextNode(firstName.value + ' ' + lastName.value);
		var x = createX(id);
		
		var iFirstName = createHiddenInput('guestFirstName-' + id, firstName.value);	
		var iLastName = createHiddenInput('guestLastName-' + id, lastName.value);			
		var iCompany = createHiddenInput('guestCompany-' + id, company.value);	
		var iEmail = createHiddenInput('guestEmail-' + id, email.value);	
		var iPhone = createHiddenInput('guestPhone-' + id, phone.value);	
		var iFoodOption = createHiddenInput('guestFoodOption-' + id, foodOption);								
	
		li.appendChild(iFirstName);
		li.appendChild(iLastName);		
		li.appendChild(iCompany);
		li.appendChild(iEmail);
		li.appendChild(iPhone);
		li.appendChild(iFoodOption);		
		
		li.appendChild(text);
		li.appendChild(x);
		
		
		return li;
	} // createGuestListItem

// addListItem
// -----------------------------------------------------------------------------
// adds a li to an existing ul or creates the ul if it doesn't exist.
// -----------------------------------------------------------------------------
	function addListItem() {
		var div = $('guestList');
		
		if(div.innerHTML == '') {
			var tUl = document.createElement('ul');
			div.appendChild(tUl);		
		}
		
		// add an item to the list
		var ul = div.getElementsByTagName('ul')[0];
		var item = createGuestListItem();
		ul.appendChild(item);
		
		//add one to the number of guests attending
		var id = $('numberOfGuests');
		id.innerHTML = 1 + parseInt($('numberOfGuests').innerHTML);
		
		//increase global id
		var gid = $('guestId');
		gid.value = 1 + parseInt($('guestId').value);
		
		//clear and toggle form and do stuff with behavior
		Effect.toggle('guestForm', 'blind');

		Behaviour.apply();

		clearForm();
		
		
			
		//getElementsByTagName('input');
	} // addListItem
	
// deleteListItem
// -----------------------------------------------------------------------------
// adds a li to an existing ul or creates the ul if it doesn't exist.
// -----------------------------------------------------------------------------
	function deleteListItem(id) {
		var li = $('guest-' + id);
		var ul = li.parentNode;
		
		ul.removeChild(li);
		
		//subtract one from the number of guests attending
		var id = $('numberOfGuests');
		id.innerHTML = parseInt($('numberOfGuests').innerHTML) - 1;
	} // deleteListItem

// validateForm
// -----------------------------------------------------------------------------
// makes sure the required for fields are filled out
// -----------------------------------------------------------------------------
	function validateForm(cn) {
		var requiredLabels = document.getElementsByClassName(cn);
			
		var tempArray = new Array();
		for(var i = 0; i < requiredLabels.length; i ++) {
			var input = $(requiredLabels[i].htmlFor);
			if(input.value == '') {
				//alert(input.id);
				tempArray.push(requiredLabels[i]);
			}
		}
		
		if(tempArray.length < 1) {
			return true;
		} else {
			var strError = '';
			for(var j = 0; j < tempArray.length; j ++) {
				strError = strError + ', ' + tempArray[j].innerHTML;
			}
			
			alert("Please fill out the following required fields \n\n " + strError);
			
			return false;
		}
	} // validateForm

// prepareFormForPayPal
// -----------------------------------------------------------------------------
// clears form and sets the action to PayPal
// -----------------------------------------------------------------------------
	function prepareFormForPayPal() {
		$('ccName').disabled = 'disabled';
		$('ccNumber').disabled = 'disabled';		
		$('ccExpMonth').disabled = 'disabled';		
		$('ccExpYear').disabled = 'disabled';		
		$('ccCVV').disabled = 'disabled';		
		$('ccAddress1').disabled = 'disabled';	
		$('ccAddress2').disabled = 'disabled';	
		$('ccCity').disabled = 'disabled';		
		$('ccState').disabled = 'disabled';		
		$('ccZip').disabled = 'disabled';		
		
		//get form and decide the action
		var form = $('paymentForm');
		if(form.hasClassName('renewal')) {
			$('paymentForm').action = 'server.php?m=renewal-paypal';			
		} else {
			$('paymentForm').action = 'server.php?m=paypal';			
		}		

	} // prepareFormForPayPal
	
// openUpForm
// -----------------------------------------------------------------------------
// opens form and sets the action to normal
// -----------------------------------------------------------------------------
	function openUpForm() {

		$('ccName').disabled = false;
		$('ccNumber').disabled = false;		
		$('ccExpMonth').disabled = false;		
		$('ccExpYear').disabled = false;		
		$('ccCVV').disabled = false;		
		$('ccAddress1').disabled = false;	
		$('ccAddress2').disabled = false;	
		$('ccCity').disabled = false;		
		$('ccState').disabled = false;		
		$('ccZip').disabled = false;		
		
		//get form and decide the action
		var form = $('paymentForm');
		if(form.hasClassName('renewal')) {
			$('paymentForm').action = 'renewal-paymentReceipt.php';			
		} else {
			$('paymentForm').action = 'paymentReceipt.php';
		}
	} // openUpForm
	
//Behaviour rules===============================================================
//==============================================================================
	var myrules = {
		'#firstSubmit' : function(element){
			element.onclick = function(){
				if(validateForm('required')) {
					$('informationForm').submit();
					return false;
				}
			}
		},
		'#secondSubmit' : function(element){
			element.onclick = function(){
				if(validateForm('required')) {
					$('informationForm').submit();
					return false;
				}
			}
		},		
		'#addGuest' : function(element){
			element.onclick = function(){
				Effect.toggle('guestForm', 'blind');
				
				return false;
			}
		},
		'#addGuestButton' : function(element){
			element.onclick = function(){
				if(validateForm('guestRequired')) {
					addListItem();
				}
			
				return false;
			}		
		},		
		'#cancelGuestButton' : function(element){
			element.onclick = function(){
				Effect.toggle('guestForm', 'blind');
				clearForm();				
			}
		},
		/*'#guestList li div a' : function(element){
			element.onclick = function(){
				var id = element.id.split('-')[1];
				deleteListItem(id);
				
				return false;
			}
		},*/
		'#guestList li div' : function(element){
			element.onclick = function(){
				var a = element.getElementsByTagName('a');
				a = a[0];
				var id = a.id.split('-')[1];
				deleteListItem(id);
				
				return false;
			}
		},			
		'.radio' : function(element){
			element.onclick = function(){
				var li = element.parentNode;
				var ul = li.parentNode;
				
				var radios = ul.getElementsByTagName('input');
				
				for(i = 0; i < radios.length; i ++) {
					var tLi = radios[i].parentNode;
					if(Element.hasClassName(tLi, 'selected')) {
						Element.removeClassName(tLi, "selected"); 						
					}
				}
				
				Element.addClassName(li, "selected"); 
				return true;
			}
		},		
		'#ccType' : function(element){
			element.onchange = function(){
				if(element.value == 'PayPal') {
					prepareFormForPayPal();
				} else {
					openUpForm();
				}
			}
		},		
		'#specialSessionYes' : function(element){
			element.onchange = function(){
				var value = Form.Element.getValue(element);
				if(value == 'Yes') {
					var display = $('sessions').getStyle('display');
					if(display == 'none') {
						if($('seatingQuestions').getStyle('display') != 'none') {
							new Effect.BlindUp($('seatingQuestions'), {duration: .3, queue: 'end'}); 						
						}					
						new Effect.BlindDown($('sessions'), {duration: .3, queue: 'end'});
						new Effect.ScrollTo('sessions', {duration: .5, queue: 'end'});							
					}
				}
			}
		},		
		'#specialSessionNo' : function(element){
			element.onchange = function(){
				var value = Form.Element.getValue(element);
				if(value == 'No') {
					var display = $('seatingQuestions').getStyle('display');
					if(display == 'none') {
						if($('sessions').getStyle('display') != 'none') {
							new Effect.BlindUp($('sessions'), {duration: .3, queue: 'end'}); 						
						}					
						new Effect.BlindDown($('seatingQuestions'), {duration: .3, queue: 'end'});
						new Effect.ScrollTo('seatingQuestions', {duration: .5, queue: 'end'});							
					}					
				}
			}
		}		
	};
	Behaviour.register(myrules);
	Behaviour.addLoadEvent(function() { 
	});	

//General ======================================================================
//==============================================================================
	window.onunload = function(e) {
		var title = getActiveStyleSheet();
		createCookie("style", title, 365);
	}

	var cookie = readCookie("style");
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);