// JavaScript Document

function validate_login(){

if (document.login.username.value == "" || document.login.password.value == ""){
alert("Please enter a username and password!");
return false;
}
else
{
return true;
}
}

function validate_forum(){
if (document.reply.name.value == "" || document.reply.title.value == "" || document.reply.message.value == ""){
alert("Please fill in all required fields!");
return false;
}
else
{
return true;
}
}

function validate_resource(){
if (document.resource.title.value == "" || document.resource.subject.options[0].selected == true || document.resource.about.value == ""){
alert("Please fill in all required fields!");
return false;
}
else
{
return true;
}
}

function validate_resource_doc(){
if (document.reply.file.value == "" ){
alert("Please choose a document to upload!");
return false;
}
else
{
return true;
}
}

function validate_diary(){
var dtDayFrom = document.register.dayfrom.value;
var dtMonthFrom = document.register.monthfrom.value;
var dtYearFrom = document.register.yearfrom.value;

var dtDayTo = document.register.dayto.value;
var dtMonthTo = document.register.monthto.value;
var dtYearTo = document.register.yearto.value;

var arrMonths = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");

if (document.register.event.value == "" || document.register.about.value == "" || document.register.dayfrom.options[0].selected == true || document.register.monthfrom.options[0].selected == true || document.register.yearfrom.options[0].selected == true || document.register.dayto.options[0].selected == true || document.register.monthto.options[0].selected == true || document.register.yearto.options[0].selected == true){
alert("Please complete all required fields!");
return false;
}
else if (dtMonthFrom == 2 && dtDayFrom == 29 && dtYearFrom % 4 != 0){
alert("There are not " + dtDayFrom + " days in February when it is not a leap year!");
return false;
}
else if (dtMonthFrom == 2 && dtDayFrom >= 30){
alert("There are not " + dtDayFrom + " days in February!");
return false;
}
else if (dtDayFrom == 31 && (dtMonthFrom == 4 || dtMonthFrom == 6 || dtMonthFrom == 9 || dtMonthFrom == 11)){
alert("There are not " + dtDayFrom + " days in " + arrMonths[dtMonthFrom-1] + "!");
return false;
}
else if (dtMonthTo == 2 && dtDayTo == 29 && dtYearTo % 4 != 0){
alert("There are not " + dtDayTo + " days in February when it is not a leap year!");
return false;
}
else if (dtMonthTo == 2 && dtDayTo >= 30){
alert("There are not " + dtDayTo + " days in February!");
return false;
}
else if (dtDayTo == 31 && (dtMonthTo == 4 || dtMonthTo == 6 || dtMonthTo == 9 || dtMonthTo == 11)){
alert("There are not " + dtDayTo + " days in " + arrMonths[dtMonthTo-1] + "!");
return false;
}
else
{
return true;
}
}

function validate_link(){
if (document.register.title.value == "" || document.register.type.options[0].selected == true || document.register.url.value == "" || document.register.url.value == "http://" || document.register.about.value == ""){
alert("Please complete all required fields!");
return false;
}
else
{
return true;
}
}

function validate_contact(){
if (document.reply.contact.value == "" || document.reply.subgroup.options[0].selected == true || document.reply.address1.value == "" || document.reply.address1.value == "" || document.reply.town.value == "" || document.reply.county.value == "" || document.reply.postcode.value == ""){
alert("Please fill in all required fields!");
return false;
}
else
{
return true;
}
}

function unCheck(fld){
if (fld.value != ""){
document.searchbox.where[1].checked = false;
}
}

function doCheck(){
document.searchbox.where[2].checked = false;
document.searchbox.where[3].checked = false;
document.searchbox.where[4].checked = false;
document.searchbox.where[5].checked = false;
document.searchbox.where[6].checked = false;
}

function validate_search(){
if (document.searchbox.keywords.value == ""){
alert("Please include keywords in your search!");
return false;
}
else if (document.searchbox.where[1].checked == false && document.searchbox.where[2].checked == false && document.searchbox.where[3].checked == false && document.searchbox.where[4].checked == false && document.searchbox.where[5].checked == false && document.searchbox.where[6].checked == false){
alert("Please check one of the 'Search For' boxes!");
return false;
}
else
{
return true;
}
}

function validate_contact(){
var str=document.contact.email.value
var at="@"
var dot="."
var lat=str.indexOf(at)
var lstr=str.length
var ldot=str.indexOf(dot)

if (document.contact.name.value == "" || document.contact.enquiry.value == ""){
alert("Please complete all required fields!");
return false;
}
else if (document.contact.email.value == "" && document.contact.telephone.value == ""){
alert("Please include either an email address or telephone number!");
return false;
}
else if (str != ""){
if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
alert("Please enter a valid email address!")
return false
}
else if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
alert("Please enter a valid email address!")
return false
}
else if (str.indexOf(dot,(lat+2))==-1){
alert("Please enter a valid email address!")
return false
}
else if (str.indexOf(" ")!=-1){
alert("Please enter a valid email address!")
return false
}
}
else
{
return true;
}
}