// Copyright  2001 by Apple Computer, Inc., All Rights Reserved.
//
// You may incorporate this Apple sample code into your own code
// without restriction. This Apple sample code has been provided "AS IS"
// and the responsibility for its operation is yours. You may redistribute
// this code, but you are not permitted to redistribute it as
// "Apple sample code" after having made changes.

// 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.";
  
    }
    if (!(stripped.length == 10)) {
	error = "The phone number is the wrong length. Make sure you included an area code.\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 > 8)) {
       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;
}       


// 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;
}

// non-empty textbox, textfield
function isEmpty(strng) {
var error = "";
//sample...
  //if (strng.length == 0) {
     //error = "The mandatory text area has not been filled in.\n"
  //}
   if ((strng.firstname.value.length==0)||(strng.firstname.value==null)) {
     error += "- First name\n"
  }
	if ((strng.lastname.value.length==0)||(strng.lastname.value==null)) {
     error += "- Last name\n"
  }
   if ((strng.street.value.length==0)||(strng.street.value==null)) {
     error += "- Street Address\n"
  }
  
  if ((strng.city.value.length==0)||(strng.city.value==null)) {
     error += "- City\n"
  }
  
  if ((strng.state.value.length==0)||(strng.state.value==null)) {
     error += "- State\n"
  }
  
  if ((strng.zip.value.length==0)||(strng.zip.value==null)) {
     error += "- Zip Code\n"
  }
	 
return error;	  
}
/*
((aTextField.value.length==0) ||
   (aTextField.value==null))
*/


// valid selector from dropdown list
function checkDropdown(choice) {
var error = "";
    if (choice == 0) {
    error = "- County of residence\n";
    }    
return error;
}

/*
//my test
function testButtons(str) { //check radio buttons to see if any are left unchecked...
var error = "";

	radioOption = -1;
	//identity
	for (i=0; i<str.identity.length; i++) {
	if (str.identity[i].checked) radioOption = i;
	}      
	if (radioOption == -1) error += "- I am a...\n";
	radioOption = -1;
	//MRSys
	for (i=0; i<str.MRSys.length; i++) {
	if (str.MRSys[i].checked) radioOption = i;
	}
	if (radioOption == -1) error += "- 1. Training: MR System\n";
	radioOption = -1;
	//waivers
	for (i=0; i<str.waivers.length; i++) {
	if (str.waivers[i].checked) radioOption = i;
	}
	if (radioOption == -1) error += "- 2. Training: Waivers\n";
	radioOption = -1;
	//estate
	for (i=0; i<str.estate.length; i++) {
	if (str.estate[i].checked) radioOption = i;
	}
	if (radioOption == -1) error += "- 3. Training: Estate & Long-Term Planning\n";
	radioOption = -1;
	//transition
	for (i=0; i<str.transition.length; i++) {
	if (str.transition[i].checked) radioOption = i;
	}
	if (radioOption == -1) error += "- 4. Training: Transitioning to Adulthood\n";
	radioOption = -1;

	
return error;
	}
	
	*/