// check form for register.php
function checkform(){
	var frm =document.input;

	if(frm.email.value	==	""){
		alert("Please input your email address!");
		frm.email.focus();
		return false;
	}
	
	if(!emailCheck(frm.email.value)){
		frm.email.focus();
		return false;	
	
	}

	if(frm.firstname.value	==	""){
		alert("Please input your First Name!");
		frm.firstname.focus();
		return false;
	}
	if(frm.lastname.value	==	""){
		alert("Please input your Last Name!");
		frm.lastname.focus();
		return false;
	}
	if(frm.password.value	==	""){
		alert("Please input your password!");
		frm.password.focus();
		return false;
	}
	if(frm.password2.value	==	""){
		alert("Please input your confirm password!");
		frm.password2.focus();
		return false;
	}
	if(frm.password2.value != frm.password.value){
		alert("Please check your password!");
		frm.password2.focus();
		return false;
	}

	if(frm.address.value	==	""){
		alert("Please input your address!");
		frm.address.focus();
		return false;
	}
	if(frm.city.value	==	""){
		alert("Please input your city!");
		frm.city.focus();
		return false;
	}
	if(frm.province.value	==	""){
		if(!frm.other_province_check.checked){

			alert("Please select your province or input other province!");
			frm.province.focus();
			return false;
		}
		else if(frm.other_province_check.checked && frm.other_province.value == ""){
			alert("Please input other province!");
			frm.province.focus();
			return false;

		}

	}
	if(frm.postcode.value	==	""){
		alert("Please input your postal code!");
		frm.postcode.focus();
		return false;
	}
	if(frm.phone.value	==	""){
		alert("Please input your phone!");
		frm.phone.focus();
		return false;
	}
	if(frm.country.value	==	""){
		alert("Please select your country!");
		frm.country.focus();
		return false;
	}

}


function loginfieldcheck(p1)
{
	if(p1.email.value=="")
	{
		alert("Please type in your email address!");
		return false;
	}
	if(!emailCheck(p1.email.value))
		return false;
	if(p1.password.value=="")
	{
		alert("Please type in your password!");
		return false;
	}
	return true;
}

function forgotfieldcheck(p1)
{
	if(p1.email_forgot.value=="")
	{
		alert("Please type in your email address!");
		return false;
	}
	return true;
}

function newsignfieldcheck(p1)
{
	if(p1.newEmail.value=="")
	{
		alert("The Email for registering as a new customer is required");
		return false;
	}
	if(!emailCheck(p1.newEmail.value))
		return false;
	return true;
}

function emailCheck (emailStr)
{
	//return true;
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null)
	{
		alert("Email address seems incorrect (check @ and .'s)");
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	for (i=0; i<user.length; i++)
	{
		if (user.charCodeAt(i)>127)
		{
			alert("Ths username contains invalid characters.");
			return false;
		}
	}
	for (i=0; i<domain.length; i++)
	{
		if (domain.charCodeAt(i)>127)
		{
			alert("Ths domain name contains invalid characters.");
			return false;
		}
	}
	// user is not valid
	if (user.match(userPat)==null)
	{
		alert("The username doesn't seem to be valid.");
		return false;
	}

	/* if the e-mail address is at an IP address (as opposed to a symbolic
	host name) make sure the IP address is valid. */

	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null)
	{
	// this is an IP address
		for (var i=1;i<=4;i++) 
		{
			if (IPArray[i]>255)
			{
				alert("Destination IP address is invalid!");
				return false;
			}
		}
		return true;
	}

	// Domain is symbolic name.  Check if it's valid.
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++)
	{
		if (domArr[i].search(atomPat)==-1)
		{
			alert("The domain name does not seem to be valid.");
			return false;
		}
	}


	if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1)
	{
		alert("The address must end in a well-known domain or two letter " + "country.");
		return false;
	}

	// Make sure there's a host name preceding the domain.

	if (len<2)
	{
		alert("This address is missing a hostname!");
		return false;
	}

	// If we've gotten this far, everything's valid!
	return true;
}

//check shipping address form at checkout step 1
function check_shipadress(){
	var frm =document.input;
	
	useOption = -1;
	var i=0;
	for(;i<frm.option.length;i++){
		if(frm.option[i].checked){
			useOption = i;
		}
	}
	if(useOption == -1){
	
		alert("Please choose an address for shipping!");
		return false;
	}
	
	if(frm.option[i-1].checked){

		if(frm.firstname.value	==	""){
			alert("Please input your First Name!");
			frm.firstname.focus();
			return false;
		}
		if(frm.lastname.value	==	""){
			alert("Please input your Last Name!");
			frm.lastname.focus();
			return false;
		}

		if(frm.address.value	==	""){
			alert("Please input your address!");
			frm.address.focus();
			return false;
		}
		if(frm.city.value	==	""){
			alert("Please input your city!");
			frm.city.focus();
			return false;
		}
		if(frm.province.value	==	""){
			if(!frm.other_province_check.checked){
		
				alert("Please select your province or input other province!");
				frm.province.focus();
				return false;
			}
			else if(frm.other_province_check.checked && frm.other_province.value == ""){
				alert("Please input other province!");
				frm.other_province.focus();
				return false;
			
			}

		}
		if(frm.postcode.value	==	""){
			alert("Please input your postal code!");
			frm.postcode.focus();
			return false;
		}
		if(frm.phone.value	==	""){
			alert("Please input your phone!");
			frm.phone.focus();
			return false;
		}
		if(frm.country.value	==	""){
			alert("Please select your country!");
			frm.country.focus();
			return false;
		}


	}

}


// check option at checkout step 2
function check_shipping(){
	var frm  = document.input;
	var useOption = -1;
	if(frm.option.value >= 5){
		return true;
	}
	else{
		for(i=0;i<frm.option.length;i++){
			if(frm.option[i].checked){
				useOption = frm.option[i].value;
			}
		}//problem here with international shipping
		if(useOption == -1){

			alert("Please choose a shipping option!");
			return false;
		}
		return true;
	}
}

function check_frame_pickup(){
	var frm  = document.input;
	var pickup = -1;
	
	for(i=0;i<frm.frame_pickup.length;i++){
		if(frm.frame_pickup[i].checked){
			pickup = 1;
		}
	}
	if(pickup == -1){

		alert("Please choose a Advance Frame Order option!");
		return false;
	}
	return true;	


}

//check preference at checkout step 4
function check_prefer(){
	var frm =document.input;

	preferOption = "";
	for(i=0;i<frm.preference.length;i++){
		if(frm.preference[i].checked){
			preferOption = frm.option[i].value;
		}
	}
	if(preferOption == ""){

		alert("Please choose an option of your preference!");
		return false;
	}
}

function checkUpdate(data){

	if(data.old_pass.value == ""){
		alert("Please type in Old Password.");
		data.old_pass.focus();
		return false;	
	}
	if(data.user_pass.value == ""){
		alert("Please type in New Password.");
		data.user_pass.focus();
		return false;	
	}
	if(data.pass2.value == ""){
		alert("Please re-type in New Password.");
		data.pass2.focus();
		return false;	
	}
	if(data.pass2.value != data.user_pass.value ){
		alert("The two New Passwords did not match, please type in again.");
		data.pass2.focus();
		return false;	
	}	
	
}