//checker list
function validateFormOnSubmit(contactform) {
var reason = "";

/*
  reason += validateUsername(contactform.username);
  reason += validatePassword(contactform.pwd);
*/
  reason += validateName(contactform.name);
  reason += validateEmail(contactform.email);
  reason += validatePhone(contactform.phone);
  reason += validateComments(contactform.comments);
      
  if (reason != "") {
    alert("Some fields need correction:\n \n" + reason);
    return false;
  }

  return true;
}


//username
function validateUsername(fld) {
    var error = "";
    var illegalChars = /\W/;
 
    if (fld.value == "") {
        fld.style.background = '#ffe3a6'; 
        error = "You didn't enter a username.\n";
    } else if ((fld.value.length < 5) || (fld.value.length > 15)) {
        fld.style.background = '#ffe3a6'; 
        error = "The username is the wrong length.\n";
    } else if (illegalChars.test(fld.value)) {
        fld.style.background = '#ffe3a6'; 
        error = "The username contains illegal characters.\n";
    } else {
        fld.style.background = 'White';
    } 
    return error;
}


//password
function validatePassword(fld) {
    var error = "";
    var illegalChars = /[\W_]/; // allow only letters and numbers 
 
    if (fld.value == "") {
        fld.style.background = '#ffe3a6';
        error = "You didn't enter a password.\n";
    } else if ((fld.value.length < 7) || (fld.value.length > 15)) {
        error = "The password is the wrong length. \n";
        fld.style.background = '#ffe3a6';
    } else if (illegalChars.test(fld.value)) {
        error = "The password contains illegal characters.\n";
        fld.style.background = '#ffe3a6';
    } else if (!((fld.value.search(/(a-z)+/)) && (fld.value.search(/(0-9)+/)))) {
        error = "The password must contain at least one numeral.\n";
        fld.style.background = '#ffe3a6';
    } else {
        fld.style.background = 'White';
    }
   return error;
}  


//empty name
function validateName(fld) {
    var error = "";
  
    if (fld.value.length == 0) {
        error = "You didn't enter your name.\n";
        fld.style.background = '#ffe3a6' 
    } else {
        fld.style.background = 'White';
    }
    return error;   
}


//email
function trim(s)
{
  return s.replace(/^\s+|\s+$/, '');
} 

function validateEmail(fld) {
    var error="";
    var tfld = trim(fld.value);
    var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
    var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;
    
    if (fld.value == "") {
        fld.style.background = '#ffe3a6';
        error = "You didn't enter an email address.\n";
    } else if (!emailFilter.test(tfld)) {
        fld.style.background = '#ffe3a6';
        error = "Please enter a valid email address.\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = '#ffe3a6';
        error = "The email address contains illegal characters.\n";
    } else {
        fld.style.background = 'White';
    }
    return error;
}


//phone
function validatePhone(fld) {
    var error = "";
    var stripped = fld.value.replace(/[\(\)\.\-\ ]/g, '');     

   if (fld.value == "") {
        error = "You didn't enter a phone number.\n";
        fld.style.background = '#ffe3a6';
    } else if (isNaN(parseInt(stripped))) {
        error = "The phone number contains illegal characters.\n";
        fld.style.background = '#ffe3a6';
    } else if (!(stripped.length > 10)) {
        error = "The phone numberis the wrong length. Make sure you included an area code.\n";
        fld.style.background = '#fe3a6';
    } else {
        fld.style.background = 'White';
    }
    return error;   
}


//empty comments
function validateComments(fld) {
    var error = "";
  
    if (fld.value.length == 0) {
        error = "The comments field has not been filled in.\n";
        fld.style.background = '#ffe3a6' 
    } else {
        fld.style.background = 'White';
    }
    return error;   
}