function ValidateEMAIL(sender, args)
{
    args.IsValid = isValidEmail(args.Value);
}

function isValidEmail(str) {
   return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
 
}




function ValidateNIF(sender, args)
{
    args.IsValid = IsValidNIF(args.Value);
}

//
function IsValidNIF(nif)
{
    var c;
    var checkDigit = 0;
    
    //Check if is not null, is numeric and if has 9 numbers
    if(nif != null && IsNumeric(nif) && nif.length == 9)
    {
        //Get the first number of NIF
        c = nif.charAt(0);
        
        //Check firt number is (1, 2, 5, 6, 8 or 9)
        if(c == '1' || c == '2' || c == '5' || c == '6' || c == '8' || c == '9')
        {
            //Perform CheckDigit calculations
            checkDigit = c * 9;
            var i = 0;
            for(i = 2; i <= 8; i++)
            {
                checkDigit += nif.charAt(i-1) * (10-i);
            }
            checkDigit = 11 - (checkDigit % 11);
            
            //if checkDigit is higher than ten set it to zero
            if(checkDigit >= 10)
                checkDigit = 0;
            
            //Compare checkDigit with the last number of NIF
            //If equal the NIF is Valid.            
            if(checkDigit == nif.charAt(8))
                return true;            
        }        
    }
    return false;
}

function IsNumeric(ObjVal)
{
return /^\d+$/.test(ObjVal);
}