// JavaScript Document

// email

function checkEmail (strng) {
var error="";
if (strng == "") {
   error = "You didn't enter an email address.\n";
}

    var emailFilter=/^.+@.+\..{2,3}$/;
    if (!(emailFilter.test(strng))) { 
       error = "Please enter a valid email address.\n";
    }
    else {
//test email for illegal characters
       var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/
         if (strng.match(illegalChars)) {
          error = "The email address contains illegal characters.\n";
       }
    }
return error;    
}


// phone number - strip out delimiters and check for 10 digits
function checkPhone (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a phone number.\n";
}

var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = "The phone number contains illegal characters.\n";
  
    }
    if (!(stripped.length == 10)) {
	error = "The phone number is the wrong length. Make sure the length is 10 numbers and includes an area code.\n";
    } 
return error;
}


// emergency phone number - strip out delimiters and check for 10 digits
function checkEPhone (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter an emergency phone number.\n";
}

var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = "The emergency phone number contains illegal characters.\n";
  
    }
    if (!(stripped.length == 10)) {
	error = "The emergency phone number is the wrong length. Make sure the length is 10 numbers and includes an area code.\n";
    } 
return error;
}

// SS# - strip out delimiters and check for 9 digits

function checkSSN (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a social security number.\n";
}

if (null != strng || "undefined" != typeof(strng)) {
var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
 //   if (isNaN(parseInt(stripped))) {
     //  error = "The social security number contains illegal characters.";
   // }
    if (!(stripped.length == 9) & !(stripped.length == 0)) {
	error = "The social security number is the wrong length.\n";
    } 
	else if (stripped == "000000000" || stripped == "111111111" || stripped == "222222222" || stripped == "333333333" || stripped == "444444444" || stripped == "555555555" || stripped == "666666666" || stripped == "777777777" || stripped == "888888888" || stripped == "999999999" || stripped == "123456789") {
	error = "You entered an illegal social security number.\n";
	}
return error;
}
}

// Birth Day - strip out delimiters and check for numbers

function checkBday (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a complete birth date.\n";
}

var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = "The birth date contains illegal characters.\n";
    }
return error;
}


// zip code - strip out delimiters and check for at least 5 digits
function checkZipCode (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a zip code.\n";
}

var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = "The zip code contains illegal characters.\n";
  
    }
    if (!(stripped.length == 5)) {
	error = "The zip code is the wrong length. Make sure the length is 5 numbers.\n";
    } 
return error;
}

// password - between 6-8 chars, uppercase, lowercase, and numeral

function checkPassword (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a password.\n";
}

    var illegalChars = /[\W_]/; // allow only letters and numbers
    
    if ((strng.length < 6) || (strng.length > 18)) {
       error = "The password is the wrong length.\n";
    }
    else if (illegalChars.test(strng)) {
      error = "The password contains illegal characters.\n";
    } 
    else if (!((strng.search(/(a-z)+/)) && (strng.search(/(A-Z)+/)) && (strng.search(/(0-9)+/)))) {
       error = "The password must contain at least one uppercase letter, one lowercase letter, and one numeral.\n";
    }  
return error;    
}    


// username - 4-10 chars, uc, lc, and underscore only.

function checkUsername (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a username.\n";
}


    var illegalChars = /\W/; // allow letters, numbers, and underscores
    if ((strng.length < 4) || (strng.length > 10)) {
       error = "The username is the wrong length.\n";
    }
    else if (illegalChars.test(strng)) {
    error = "The username contains illegal characters.\n";
    } 
return error;
}       


// non-empty textbox

function isEmpty(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The mandatory text area has not been filled in.\n"
  }
return error;	  
}

// non-empty textbox

function checkName(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The name fields have not been filled in.\n"
  }
return error;	  
}

// non-empty textbox
function checkFName(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The first name field has not been filled in.\n"
  }
return error;	  
}

// non-empty textbox
function checkLName(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The last name field has not been filled in.\n"
  }
return error;	  
}

// non-empty textbox
function checkAddress(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The address field has not been filled in.\n"
  }
return error;	  
}

// non-empty textbox
function checkForeign(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The foreign address field has not been filled in.\n"
  }
return error;	  
}

// non-empty textbox
function checkCity(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The city field has not been filled in.\n"
  }
return error;	  
}

// non-empty textbox
function checkState(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The state field has not been filled in.\n"
  }
return error;	  
}

// non-empty textbox
function checkCounty(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The county field has not been filled in.\n"
  }
return error;	  
}

// non-empty textbox
function checkEFName(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The emergency first name field has not been filled in.\n"
  }
return error;	  
}

// non-empty textbox
function checkELName(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The emergency last name field has not been filled in.\n"
  }
return error;	  
}

// was textbox altered
function isDifferent(strng) {
var error = ""; 
  if (strng != "Can\'t touch this!") {
     error = "You altered the inviolate text area.\n";
  }
return error;
}

// exactly one radio button is chosen
function checkRadio(checkvalue) {
var error = "";
   if (!(checkvalue)) {
       error = "Please check a radio button.\n";
    }
return error;
}

// valid selector from dropdown list

function checkDropdown(choice) {
var error = "";
    if (choice == 0) {
    error = "You didn't choose an option from the drop-down list.\n";
    }    
return error;
}