// JavaScript Document

//field validation -----------------------------------------

function fieldCheck(field,alerttxt)
{
with (field)
  {
  if (value==null||value=="")
    {
    alert(alerttxt);return false;
    }
  else
    {
    return true;
    }
  }
}

//-----------------------------------------------------------

//email validation -------------------------------------------

function emailCheck(email, alerttxt)
{
	if (email == '' || email == null)	{
		alert(alerttxt);
		return false;
	}
	else {
//alert(email);
var at=email.indexOf('@');
var dot=email.lastIndexOf('.');
var atpos=email.lastIndexOf('@');
var emlen=email.length;
if (at<1||dot-at<2||atpos+1==emlen||dot+1==emlen||emlen-dot<3) 
  {
  alert(alerttxt);
  return false
  }
}
return true;
} 

//-----------------------------------------------------------------

//for phone number check ------------------------------------------

function phoneCheck(pnum, alerttxt)
  {
	  if (pnum == '' || pnum == null)	{
		alert(alerttxt);
		return false;
	}
	else {
  var phchar="1234567890 -_+.()";
  for (i=0;i<=pnum.length;i++)
    {	
	if(phchar.indexOf(pnum.charAt(i))==-1)
	  {	  
	  alert(alerttxt);
	  return false ;
	  }	
	}
	}
  return true ;
  }
  
//----------------------------------------------------------------

//for number check------------------------------------------------

function numCheck(pnum, alerttxt)
  {
	if (pnum == '' || pnum == null)	{
		alert(alerttxt);
		return false;
	}
	else {
  var phchar="1234567890";
  for (i=0; i<=pnum.length; i++)
    {	
	if(phchar.indexOf(pnum.charAt(i))==-1)
	  {	  
	  alert(alerttxt);
	  return false ;
	  }	
	}
	}
  return true ;
  }
  
//-----------------------------------------------------------------

//Radio butoon check boxes ---------------------------------------

function checkBox(chkname, alerttxt)
{ 
 alert(chkname);
   var inputs = document.getElementsByTagName("input");
   a=0;
   for(var t = 0;t < inputs.length;t++){
     if(inputs[t].type == "checkbox" && inputs[t].checked == true && inputs[t].name===chkname)
	 {	
       a=1;	   
	 }	   
   } 
   //alert(a) ;
   if(a==0)
   {
   alert(alerttxt);
   return false ;
	}else 
	{
	return true ;
	}
}

//----------------------------------------------------------------


//For radio boxes
 function radio(radname,alerttxt)
{ 
//alert(chkname);
   var inputs = document.getElementsByTagName("input");
   a=0;
   for(var t = 0;t < inputs.length;t++){
     if(inputs[t].type == "radio" && inputs[t].checked == true && inputs[t].name===radname)
	 {	
       a=1;	   
	 }	   
   } 
   //alert(a) ;
   if(a==0)
   {
   alert(alerttxt);
   return false ;
	}else 
	{
	return true ;
	}
}

//-----------------------------------------------------------------


//form validation -------------------------------------------------

/*function validate_form(thisform)
{
	//alert(thisform) ;
with (thisform)
  {
	  if (fieldCheck(name,"Name must be filled out!")==false)
	  {name.focus();return false;}
	  
	  if (fieldCheck(add1,"Address must be filled out!")==false)
	  {add1.focus();return false;}
	  
	  if (fieldCheck(city,"City must be filled out!")==false)
	  {city.focus();return false;}
	  
	  if (fieldCheck(state,"State must be filled out!")==false)
	  {state.focus();return false;}
	  
	  if (numCheck(zip.value,"Zip must be filled out with numbers!")==false)
	  {zip.value=''; zip.focus(); return false;}
	  
	  if (fieldCheck(country,"Country must be filled out!")==false)
	  {country.focus();return false;}
	  
	  if (phoneCheck(phone.value,"Phone must be filled out!")==false)
	  {phone.value=''; phone.focus(); return false;}
	  
	  if (emailCheck(email.value,"Valid email must be filled out!")==false)
	  {email.value=''; email.focus();return false;}
	  
	  if (fieldCheck(ccname,"Credit card holder name must be filled out!")==false)
	  {ccname.focus();return false;}
	  
	  if (fieldCheck(cctype,"Select the type of credit card!")==false)
	  {cctype.focus();return false;}
	  
	  if (isValidCreditCard(ccnum.value, cctype.value, "Credit card number must be valid!")==false)
	  {ccnum.value=''; ccnum.focus();return false;}
	  
	  if (fieldCheck(ccmonth,"Expiry month must be selecte!")==false)
	  {ccmonth.focus();return false;}
	  
	  if (fieldCheck(ccyear,"Expiry year must be selecte!")==false)
	  {ccyear.focus();return false;}
	  
	   if (isExpiryDate(ccmonth.value, ccyear.value, "Card was expired. Sorry!")==false)
	  {shipping.focus();return false;}
	  
	   if (radio('order[]', "Check your order!")==false)
	  {document.getElementById('order').focus();return false;}
	  
	   if (fieldCheck(shipping,"Select your shipping!")==false)
	  {shipping.focus();return false;}	  
	  
  }
}
*/
//----------------------------------------------------------------

function createElements(cntry)
	{
		//alert(cntry) ;
		document.getElementById('austate').style.visibility='hidden';
		if(cntry == 'AU'){
			//document.getElementById('austate').innerHTML = '' ;
							//document.getElementById('austate').innerHTML = 'jfsadfsadjfsl' ;
			document.getElementById('austate').style.visibility='visible';	
			}
		
	}

//Credit card validation-------------------------------------------

function isValidCreditCard(ccnum, type, alerttxt) {
// alert(ccnum);
//alert(type);
   if (type == "Visa") {
      // Visa: length 16, prefix 4, dashes optional.
      var re = /^4\d{3}-?\d{4}-?\d{4}-?\d{4}$/;
   } else if (type == "MasterCard") {
      // Mastercard: length 16, prefix 51-55, dashes optional.
      var re = /^5[1-5]\d{2}-?\d{4}-?\d{4}-?\d{4}$/;
   } else if (type == "Amex") {
      // American Express: length 15, prefix 34 or 37.
      var re = /^3[4,7]\d{13}$/;
   } else if (type == "Diners") {
      // Diners: length 14, prefix 30, 36, or 38.
      var re = /^3[0,6,8]\d{12}$/;
   }else if (type == "Disc") {
      // Discover: length 16, prefix 6011, dashes optional.
      var re = /^6011-?\d{4}-?\d{4}-?\d{4}$/;
   }
      
   if (!re.test(ccnum))
   {
   alert(alerttxt);
   return false;
   }
   // Remove all dashes for the checksum checks to eliminate negative numbers
   ccnum = ccnum.split("-").join("");
   // Checksum ("Mod 10")
   // Add even digits in even length strings or odd digits in odd length strings.
   var checksum = 0;
   for (var i=(2-(ccnum.length % 2)); i<=ccnum.length; i+=2) {
      checksum += parseInt(ccnum.charAt(i-1));
   }
   // Analyze odd digits in even length strings or even digits in odd length strings.
   for (var i=(ccnum.length % 2) + 1; i<ccnum.length; i+=2) {
      var digit = parseInt(ccnum.charAt(i-1)) * 2;
      if (digit < 10) { checksum += digit; } else { checksum += (digit-9); }
   }
   if ((checksum % 10) == 0)
   {
   //alert("Success");
   return true;  
   }
   else 
   {
   alert(alerttxt);
   return false;
}
return true;
}

//------------------------------------------------------

//date validation --------------------------------------
function isExpiryDate(month, year, alerttxt)
 {
// alert(year);
  today = new Date();
expiry = new Date(year, month);
//alert(expiry);
if (today.getTime() > expiry.getTime())
{
alert(alerttxt)
return false;
}
else
{
//alert("success")
return true;
}
}

//---------------------------------------------------------