// JavaScript Document
function frmValidation(){
var obj='';
obj=document.careers;
if(is_empty(trim(obj.name.value))){
	   alert("Please enter your contact name!");
	   obj.name.focus();
	   return false;
}
else if(is_empty(trim(obj.company.value))){
	   alert("Please enter your company name!");
	   obj.company.focus();
	   return false;
}
else if(is_empty(trim(obj.phone_number.value))){
	   alert("Please enter your phone number!");
	   obj.phone_number.focus();
	   return false;
}	    
else if(!is_number(trim(obj.phone_number.value)))
	   {
	   alert("Please enter phone in numeric!");
	   obj.phone_number.focus();
	   return false;
	   }  
else if(is_empty(trim(obj.email.value)))
	   {
	   alert("Please enter your email-address!");
	   obj.email.focus();
	   return false;
	   } 
		   
 else if(!is_email(trim(obj.email.value)))
	   {
	   alert("Please enter your valid email-address!");
	   obj.email.focus();
	   return false;
	   }
else if(is_empty(trim(obj.find.value)))
	   {
	   alert("Please enter How did you find out about N2growth?");
	   obj.find.focus();
	   return false;
	   } 
	 
else
	{
	return true;
	}

}

function contactusValidation(){
	obj=document.contactus;
	if(is_empty(trim(obj.name.value)))
	   {
	   alert("Please enter your contact name!");
	   obj.name.focus();
	   return false;
	   }
   

	   
  else if(is_empty(trim(obj.company.value)))
	   {
	   alert("Please enter your company name!");
	   obj.company.focus();
	   return false;
	   }

else if(is_empty(trim(obj.phone_number.value)))
	   {
	   alert("Please enter your phone number!");
	   obj.phone_number.focus();
	   return false;
	   }	    
else if(!is_number(trim(obj.phone_number.value)))
	   {
	   alert("Please enter phone in numeric!");
	   obj.phone_number.focus();
	   return false;
	   }  
else if(is_empty(trim(obj.email.value)))
	   {
	   alert("Please enter your email-address!");
	   obj.email.focus();
	   return false;
	   } 
		   
 else if(!is_email(trim(obj.email.value)))
	   {
	   alert("Please enter your valid email-address!");
	   obj.email.focus();
	   return false;
	   }
	 else if(is_empty(trim(obj.find.value)))
	   {
	   alert("Please enter How did you find out about N2growth?");
	   obj.find.focus();
	   return false;
	   } 
else
	{
	return true;
	}
}

function loginValidation(){
	obj=document.login;
	if(is_empty(trim(obj.name.value)))
	   {
	   alert("Please enter your name!");
	   obj.name.focus();
	   return false;
	   }
	 else if(is_empty(trim(obj.pass.value)))
	   {
	   alert("Please enter password!");
	   obj.pass.focus();
	   return false;
	   } 
   
   else if(is_empty(trim(obj.email.value)))
	   {
	   alert("Please enter your email-address!");
	   obj.email.focus();
	   return false;
	   } 

else if(is_empty(trim(obj.email.value)))
	   {
	   alert("Please enter your email-address!");
	   obj.email.focus();
	   return false;
	   } 
		   
 else if(!is_email(trim(obj.email.value)))
	   {
	   alert("Please enter your valid email-address!");
	   obj.email.focus();
	   return false;
	   }
	   
 

else if(is_empty(trim(obj.phone_number.value)))
	   {
	   alert("Please enter your phone number!");
	   obj.phone_number.focus();
	   return false;
	   }	    
else if(!is_number(trim(obj.phone_number.value)))
	   {
	   alert("Please enter phone in numeric!");
	   obj.phone_number.focus();
	   return false;
	   }  

	
else
	{
	return true;
	}
}

function passValidation(){
	obj=document.pass;
	
	obj=document.login;
	if(is_empty(trim(obj.name.value)))
	   {
	   alert("Please enter your name!");
	   obj.name.focus();
	   return false;
	   }
   else if(is_empty(trim(obj.email.value)))
	   {
	   alert("Please enter your email-address!");
	   obj.email.focus();
	   return false;
	   } 

else if(is_empty(trim(obj.email.value)))
	   {
	   alert("Please enter your email-address!");
	   obj.email.focus();
	   return false;
	   } 
		   
 else if(!is_email(trim(obj.email.value)))
	   {
	   alert("Please enter your valid email-address!");
	   obj.email.focus();
	   return false;
	   }
	   
 

else if(is_empty(trim(obj.phone_number.value)))
	   {
	   alert("Please enter your phone number!");
	   obj.phone_number.focus();
	   return false;
	   }	    
else if(!is_number(trim(obj.phone_number.value)))
	   {
	   alert("Please enter phone in numeric!");
	   obj.phone_number.focus();
	   return false;
	   }  

	
else
	{
	return true;
	}
}




function courseValidation(){
	
	
	obj=document.course;
	if(document.course.fname.value=='')
	   {
	   alert("Please enter your first name!");
	   obj.fname.focus();
	   return false;
	   }
	   
	else if(document.course.lastname.value=='')
	   {
	   alert("Please enter your last name!");
	   obj.lastname.focus();
	   return false;
	   }
	  
  else if(document.course.email.value=='')
	   {
	   alert("Please enter your email address!");
	   obj.email.focus();
	   return false;
	   }
	   
 else if(document.course.phone_number.value=='')
	   {
	   alert("Please enter your phone number!");
	   obj.phone_number.focus();
	   return false;
	   }
	   


else if(document.course.CreditcardNumber.value=='')
	   {
	   alert("Please enter credit card number!");
	   obj.CreditcardNumber.focus();
	   return false;
	   }
		var len=obj.CreditcardNumber.length;
   if (len<16)
	        {
			alert("Please enter valid credit card number!");
	   		obj.CreditcardNumber.focus();
	   		return false;
			}
			
else if(document.course.credit_card_mm.value=='')
	   {
	   alert("Please enter credit card expiry month!");
	   obj.credit_card_mm.focus();
	   return false;
	   }  
else if(document.course.credit_card_yy.value=='')
	   {
	   alert("Please enter credit card expiry year!");
	   obj.credit_card_yy.focus();
	   return false;
	   }	   
else if(document.course.cvv.value=='')
	   {
	   alert("Please enter cvv number!");
	   obj.cvv.focus();
	   return false;
	   } 
else if(document.course.billAddress.value=='')
	   {
	   alert("Please enter billing address!");
	   obj.billAddress.focus();
	   return false;
	   } 
else if(document.course.billCity.value=='')
	   {
	   alert("Please enter billing address city!");
	   obj.billCity.focus();
	   return false;
	   }
else if(document.course.billState.value=='')
	   {
	   alert("Please enter billing address state!");
	   obj.billState.focus();
	   return false;
	   }
else if(document.course.billZip.value=='')
	   {
	   alert("Please enter billing address zipcode!");
	   obj.billZip.focus();
	   return false;
	   }
else if(document.course.billCountry.value=='')
	   {
	   alert("Please select your country!");
	   obj.billCountry.focus();
	   return false;
	   }
	   
else if((document.course.CreditcardNumber.value!="") && (document.course.CreditcardType.value!=""))
			{
				if (!checkCreditCard(document.course.CreditcardNumber.value,document.course.CreditcardType.value)) {
					 alert(ccErrors[ccErrorNo]);
					 return false;
				} 
			}	   
	
else
	{
	return true;
	}
}

var ccErrorNo = 0;
var ccErrors = new Array ()

ccErrors [0] = "Unknown card type";
ccErrors [1] = "No card number provided";
ccErrors [2] = "Credit card number is in invalid format";
ccErrors [3] = "Credit card number is invalid";
ccErrors [4] = "Credit card number has an inappropriate number of digits";

function checkCreditCard (cardnumber, cardname) {
     
  // Array to hold the permitted card characteristics
  var cards = new Array();
//alert(cardname);
  // Define the cards we support. You may add addtional card types.
  
  //  Name:      As in the selection box of the form - must be same as user's
  //  Length:    List of possible valid lengths of the card number for the card
  //  prefixes:  List of possible prefixes for the card
  //  checkdigit Boolean to say whether there is a check digit

  
  	cards [0] = {name: "Visa", 
               length: "13,16", 
               prefixes: "4",
               checkdigit: true};
	cards [1] = {name: "MasterCard", 
               length: "16", 
               prefixes: "51,52,53,54,55",
               checkdigit: true};	
   cards [2] = {name: "AmericanExpress", 
               length: "15", 
               prefixes: "34,37",
               checkdigit: true};
	cards [3] = {name: "DinersClub", 
               length: "14,16", 
               prefixes: "300,301,302,303,304,305,36,38,55",
               checkdigit: true};
    cards [4] = {name: "CarteBlanche", 
               length: "14", 
               prefixes: "300,301,302,303,304,305,36,38",
               checkdigit: true};
   cards [5] = {name: "Discover", 
               length: "16", 
               prefixes: "6011,650",
               checkdigit: true};
  cards [6] = {name: "JCB", 
               length: "15,16", 
               prefixes: "3,1800,2131",
               checkdigit: true};
  cards [7] = {name: "enRoute", 
               length: "15", 
               prefixes: "2014,2149",
               checkdigit: true};
  cards [8] = {name: "Solo", 
               length: "16,18,19", 
               prefixes: "6334, 6767",
               checkdigit: true};
  cards [9] = {name: "Switch", 
               length: "16,18,19", 
               prefixes: "4903,4905,4911,4936,564182,633110,6333,6759",
               checkdigit: true};
  cards [10] = {name: "Maestro", 
               length: "16", 
               prefixes: "5020,6",
               checkdigit: true};
  cards [11] = {name: "VisaElectron", 
               length: "16", 
               prefixes: "417500,4917,4913",
               checkdigit: true};
               
  // Establish card type

  var cardType = -1;
  for (var i=0; i<cards.length; i++) {

    // See if it is this card (ignoring the case of the string)
    if (cardname.toLowerCase () == cards[i].name.toLowerCase()) {
      cardType = i;
      //break;
    }
  }
  
  // If card type not found, report an error
  if (cardType == -1) {
     ccErrorNo = 0;
     return false; 
  }
   
  // Ensure that the user has provided a credit card number
  if (cardnumber.length == 0)  {
     ccErrorNo = 1;
     return false; 
  }
    
  // Now remove any spaces from the credit card number
  cardnumber = cardnumber.replace (/\s/g, "");
  
  // Check that the number is numeric
  var cardNo = cardnumber
  var cardexp = /^[0-9]{13,19}$/;
  if (!cardexp.exec(cardNo))  {
     ccErrorNo = 2;
     return false; 
  }
       
  // Now check the modulus 10 check digit - if required
  if (cards[cardType].checkdigit) {
    var checksum = 0;                                  // running checksum total
    var mychar = "";                                   // next char to process
    var j = 1;                                         // takes value of 1 or 2
  
    // Process each digit one by one starting at the right
    var calc;
    for (i = cardNo.length - 1; i >= 0; i--) {
    
      // Extract the next digit and multiply by 1 or 2 on alternative digits.
      calc = Number(cardNo.charAt(i)) * j;
    
      // If the result is in two digits add 1 to the checksum total
      if (calc > 9) {
        checksum = checksum + 1;
        calc = calc - 10;
      }
    
      // Add the units element to the checksum total
      checksum = checksum + calc;
    
      // Switch the value of j
      if (j ==1) {j = 2} else {j = 1};
    } 
  
    // All done - if checksum is divisible by 10, it is a valid modulus 10.
    // If not, report an error.
    if (checksum % 10 != 0)  {
     ccErrorNo = 3;
     return false; 
    }
  }  

  // The following are the card-specific checks we undertake.
  var LengthValid = false;
  var PrefixValid = false; 
  var undefined; 

  // We use these for holding the valid lengths and prefixes of a card type
  var prefix = new Array ();
  var lengths = new Array ();
    
  // Load an array with the valid prefixes for this card
  prefix = cards[cardType].prefixes.split(",");
      
  // Now see if any of them match what we have in the card number
  for (i=0; i<prefix.length; i++) {
    var exp = new RegExp ("^" + prefix[i]);
    if (exp.test (cardNo)) PrefixValid = true;
  }
      
  // If it isn't a valid prefix there's no point at looking at the length
  if (!PrefixValid) {
     ccErrorNo = 3;
     return false; 
  }
    
  // See if the length is valid for this card
  lengths = cards[cardType].length.split(",");
  for (j=0; j<lengths.length; j++) {
    if (cardNo.length == lengths[j]) LengthValid = true;
  }
  
  // See if all is OK by seeing if the length was valid. We only check the 
  // length if all else was hunky dory.
  if (!LengthValid) {
     ccErrorNo = 4;
     return false; 
  };   
  
  // The credit card is in the required format.
  return true;
}

/*============================================================================*/