// This is a Java Script Validation File

//This function validates email id
function checkemail(email)
{
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=email.match(emailPat);
if (matchArray==null) {
return false;
}
var user=matchArray[1];
var domain=matchArray[2];
for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
return false;
   }
}
if (user.match(userPat)==null) {
return false;
}
var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {
for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
return false;
   }
}
return true;
}

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) {
return false;
   }
}
if (checkTLD && domArr[domArr.length-1].length!=2 && 
domArr[domArr.length-1].search(knownDomsPat)==-1) {
return false;
}
if (len<2) {
  return false;
   }
  return true;
}


//This function is to check validations of contact page
function validate_contact()
{
	if(document.formcontact.txtname.value=="")
	{
		alert("Please input your name.");
		document.formcontact.txtname.focus();
		return false;
	}
	if(document.formcontact.txtemail.value=="")
	{
		alert("Please input your e-mail id.");
		document.formcontact.txtemail.focus();
		return false;
	}
	else
	{
		if(!checkemail(document.formcontact.txtemail.value))
		{
			alert("Please input valid email");	
			document.formcontact.txtemail.focus();
			return false;
		}
	}
	if(document.formcontact.txtaddress.value=="")
	{
		alert("Please input your address.");
		document.formcontact.txtaddress.focus();
		return false;
	}
	if(document.formcontact.txtcity.value=="")
	{
		alert("Please input your city.");
		document.formcontact.txtcity.focus();
		return false;
	}
	if(document.formcontact.txtstate.value=="")
	{
		alert("Please input your state.");
		document.formcontact.txtstate.focus();
		return false;
	}
	if(document.formcontact.txtcountry.value=="")
	{
		alert("Please input your country.");
		document.formcontact.txtcountry.focus();
		return false;
	}
	if(document.formcontact.txtphone.value=="")
	{
		alert("Please input your phone no.");
		document.formcontact.txtphone.focus();
		return false;
	}
	if(document.formcontact.tarcomments.value=="")
	{
		alert("Please input some comment or query.");
		document.formcontact.tarcomments.focus();
		return false;
	}
	return true;
}


//This function is to check validations of testimonials page
function validate_testimonials()
{
	if(document.formtestimonials.txtname.value=="")
	{
		alert("Please input your name.");
		document.formtestimonials.txtname.focus();
		return false;
	}
	if(document.formtestimonials.txtcountry.value=="")
	{
		alert("Please input your country.");
		document.formtestimonials.txtcountry.focus();
		return false;
	}
	if(document.formtestimonials.txtemail.value=="")
	{
		alert("Please input your e-mail id.");
		document.formtestimonials.txtemail.focus();
		return false;
	}
	else
	{
		if(!checkemail(document.formtestimonials.txtemail.value))
		{
			alert("Please input valid email");	
			document.formtestimonials.txtemail.focus();
			return false;
		}
	}
	if(document.formtestimonials.tarcomments.value=="")
	{
		alert("Please input some comment or query.");
		document.formtestimonials.tarcomments.focus();
		return false;
	}
	return true;
}

//this is rating validation function
function rating_validation()
{
	//alert(document.formhome.rdbrate.lenght);
	for(var i=0; i < 3; i++) 
	{
		if(document.formhome.rdbrate[i].checked)
		{
			return true;
		}
	}
	alert("Please select atleast one value.");
	return false;
}

//this is newsletter validation function
function validate_newsletter()
{
	if(document.formhome.txtnewletter.value=="")
	{
		alert("Please enter your e-mail id.");
		document.formhome.txtnewletter.focus();
		return false;
	}
	else
	{
		if(!checkemail(document.formhome.txtnewletter.value))
		{
			alert("Please input valid email");	
			document.formhome.txtnewletter.focus();
			return false;
		}
	}
	return true;
}

//this function is for card validations
function card_validations()
{
	if(document.card.txtfname.value=="")	
	{
		alert("Please input card holder's first name");	
		document.card.txtfname.focus();
		return false;
	}
	if(document.card.txtlname.value=="")	
	{
		alert("Please input card holder's last name");	
		document.card.txtlname.focus();
		return false;
	}
	if(document.card.txtcardno.value=="")	
	{
		alert("Please input card no.");	
		document.card.txtcardno.focus();
		return false;
	}
	else
	{
		if (!validateCreditCard(document.card.txtcardno.value)) 
		{
	  		alert('Invalid credit card number');
	  		return false;
		}
	}
	if(document.card.drpmonth.value=="")	
	{
		alert("Please select card expiry month");	
		return false;
	}
	if(document.card.drpyear.value=="")	
	{
		alert("Please select card expiry year");	
		return false;
	}
	if(document.card.drpmonth.value!="" && document.card.drpyear.value!="")
	{
		tmpmonth = document.card.drpmonth.value;
		tmpyear = "20" + document.card.drpyear.value;
		if (!isExpiryDate(tmpyear, tmpmonth))
		{
			alert("This card has already expired.");
			return false;
		}
	}
	if(document.card.txtsecuritycode.value=="")	
	{
		alert("Please input security code");	
		document.card.txtsecuritycode.focus();
		return false;
	}
	else
	{
		if (!isNum(document.card.txtsecuritycode.value))
		{
			alert("Incorrect security code");	
			return false;
		}
	}
}
function validateCreditCard(s) 
{
	var v = "0123456789";
	var w = "";
	for (var i=0; i < s.length; i++) 
	{
		x = s.charAt(i);
		if (v.indexOf(x,0) != -1)
		w += x;
	}
	var j = w.length / 2;
	if (j < 6.5 || j > 8 || j == 7) 
		return false;
	var k = Math.floor(j);
	var m = Math.ceil(j) - k;
	var c = 0;
	for (var i=0; i<k; i++) 
	{
		a = w.charAt(i*2+m) * 2;
		c += a > 9 ? Math.floor(a/10 + a%10) : a;
	}
	for (var i=0; i<k+m; i++) 
		c += w.charAt(i*2+1-m) * 1;
	return (c%10 == 0);
}
function isExpiryDate() 
{
	var argv = isExpiryDate.arguments;
	var argc = isExpiryDate.arguments.length;
	
	year = argc > 0 ? argv[0] : this.year;
	month = argc > 1 ? argv[1] : this.month;
	
	if (!isNum(year+""))
		return false;
	if (!isNum(month+""))
		return false;
	today = new Date();
	expiry = new Date(year, month);
	if (today.getTime() > expiry.getTime())
		return false;
	else
		return true;
}
function isNum(argvalue) 
{
	argvalue = argvalue.toString();
	
	if (argvalue.length == 0)
		return false;
	
	for (var n = 0; n < argvalue.length; n++)
		if (argvalue.substring(n, n+1) < "0" || argvalue.substring(n, n+1) > "9")
			return false;
	
	return true;
}

//this function is to check if the quantity entered is 0

function check0(txtval)
{
	//alert(txtnamevar);
	var thevalue = document.formcartitems.txtqty.value
	var thelength=thevalue.length
	if(thevalue=="0")
	{
		alert("Quantity must be greater then 0");
		document.formcartitems.txtqty.value=txtval;
		return false;
	}
	else if(thevalue=="")
	{
		alert("Quantity can not be blank");
		document.formcartitems.txtqty.value=txtval;
		return false;
	}
	else if(thelength>0)
	{
		for(i=0;i<=thelength-1;i++)
		  {
			if(thevalue.charAt(i)<"0"||thevalue.charAt(i)>"9")
			{
				alert("Invalid Quantity");
				document.formcartitems.txtqty.value=txtval;
				return false;
			}   
		 }
	}
	return true;
}

function updateqty()
{
	document.formcartitems.hidupdqty.value="true";
	document.formcartitems.submit();
	
}
function caltax()
{
	if(document.formcartitems.selcountry.value=="CA")
	{
		document.formcartitems.hidcountry.value="canada";
	}
	else
	{
		document.formcartitems.hidcountry.value="";
	}
	document.formcartitems.submit();
}
function delcartid(cart_id)
{
	if(confirm("Are you sure you want to remove this item?"))
	{
		document.formcartitems.hiddelid.value=cart_id;
		document.formcartitems.submit();
	}
	
}

//This function is used to validate check out data in basket.php
function validate_chkout()
{
	if(document.formcartitems.card_num.value=="")	
	{
		alert("Please input credit card number.");	
		document.formcartitems.card_num.focus();
		return false;
	}
	else
	{
		if (!validateCreditCard(document.formcartitems.card_num.value)) 
		{
	  		alert('Invalid credit card number.');
	  		return false;
		}
	}
	
	
	
	if(document.formcartitems.exp_month.value=="")	
	{
		alert("Please select card expiry month");	
		return false;
	}
	if(document.formcartitems.exp_year.value=="")	
	{
		alert("Please select card expiry year");	
		return false;
	}
	if(document.formcartitems.exp_month.value!="" && document.formcartitems.exp_year.value!="")
	{
		tmpmonth = document.formcartitems.exp_month.value;
		tmpyear = "20" + document.formcartitems.exp_year.value;
		if (!isExpiryDate(tmpyear, tmpmonth))
		{
			alert("This card has already expired.");
			return false;
		}
	}
	if(document.formcartitems.card_code.value=="")	
	{
		alert("Please input security code");	
		document.formcartitems.card_code.focus();
		return false;
	}
	else
	{
		if (!isNum(document.formcartitems.card_code.value))
		{
			alert("Incorrect security code");	
			return false;
		}
	}
	
	
	
	if(document.formcartitems.txtemail.value=="")	
	{
		alert("Please input your e-mail id.");	
		document.formcartitems.txtemail.focus();
		return false;
	}
	else
	{
		if(!checkemail(document.formcartitems.txtemail.value))
		{
			alert("Please input valid email");	
			document.formcartitems.txtemail.focus();
			return false;
		}
	}
	if(document.formcartitems.txtconemail.value=="")	
	{
		alert("Please input your e-mail id again to confirm.");	
		document.formcartitems.txtconemail.focus();
		return false;
	}
	if(document.formcartitems.txtemail.value!=document.formcartitems.txtconemail.value)
	{
		alert("e-mail ids do not match.");
		document.formcartitems.txtconemail.focus();
		return false;
	}
	if(document.formcartitems.txtfname.value=="")	
	{
		alert("Please input your first name.");	
		document.formcartitems.txtfname.focus();
		return false;
	}
	if(document.formcartitems.txtlname.value=="")	
	{
		alert("Please input your last name.");	
		document.formcartitems.txtlname.focus();
		return false;
	}
	if(document.formcartitems.txtzipcode.value=="")	
	{
		alert("Please input the Zip / postal code.");	
		document.formcartitems.txtzipcode.focus();
		return false;
	}
	if(document.formcartitems.txtaddress.value=="")	
	{
		alert("Please input your address.");	
		document.formcartitems.txtaddress.focus();
		return false;
	}
	if(document.formcartitems.txtcity.value=="")	
	{
		alert("Please input the name of your city.");	
		document.formcartitems.txtcity.focus();
		return false;
	}
	if(document.formcartitems.txtstate.value=="")	
	{
		alert("Please input the name of your state.");	
		document.formcartitems.txtstate.focus();
		return false;
	}
	if(document.formcartitems.selcountry.value=="")	
	{
		alert("Please select the name of your country.");	
		document.formcartitems.selcountry.focus();
		return false;
	}
	if(!(document.formcartitems.chkterms.checked))
	{
		alert("Please agree to terms and conditions.");	
		return false;
	}
	return true;
}

//this function is called on click of buy now image
function submitbuy(item_id)
{
	
	
}
function validateCreditCard(s) 
{
	var v = "0123456789";
	var w = "";
	for (var i=0; i < s.length; i++) 
	{
		x = s.charAt(i);
		if (v.indexOf(x,0) != -1)
		w += x;
	}
	var j = w.length / 2;
	if (j < 6.5 || j > 8 || j == 7) 
		return false;
	var k = Math.floor(j);
	var m = Math.ceil(j) - k;
	var c = 0;
	for (var i=0; i<k; i++) 
	{
		a = w.charAt(i*2+m) * 2;
		c += a > 9 ? Math.floor(a/10 + a%10) : a;
	}
	for (var i=0; i<k+m; i++) 
		c += w.charAt(i*2+1-m) * 1;
	return (c%10 == 0);
}
function isExpiryDate() 
{
	var argv = isExpiryDate.arguments;
	var argc = isExpiryDate.arguments.length;
	
	year = argc > 0 ? argv[0] : this.year;
	month = argc > 1 ? argv[1] : this.month;
	
	if (!isNum(year+""))
		return false;
	if (!isNum(month+""))
		return false;
	today = new Date();
	expiry = new Date(year, month);
	if (today.getTime() > expiry.getTime())
		return false;
	else
		return true;
}
function isNum(argvalue) 
{
	argvalue = argvalue.toString();
	
	if (argvalue.length == 0)
		return false;
	
	for (var n = 0; n < argvalue.length; n++)
		if (argvalue.substring(n, n+1) < "0" || argvalue.substring(n, n+1) > "9")
			return false;
	
	return true;
}