// JavaScript Document
function checkName (strng, nameStrng) {
	var error="";
	if (strng ==""){
		error = nameStrng + "is empty.\n";
	}
	else{
	}
	return error;
}

function checkChar (strng, nameStrng) {
	
	var error="";
if (strng == "") {
   error = nameStrng + "is empty.\n";
}
else{

    var illegalChars = /[\W\x20]+$/; // allow letters, numbers, and underscores
  if (illegalChars.test(strng)) {
    error = nameStrng + "contains illegal characters.\n";
    }
}
return error;
}

function checkChars (strng, nameStrng){
	var error="";
	var illegalChars = /[\W\x20]+$/; // allow letters, numbers, and underscores
  if (illegalChars.test(strng)) {
    error = nameStrng + "contains illegal characters.\n";
    }
return error;
}




function checkEmail (strng, nameStrng) {
var error="";
if (strng == "") {
   error = nameStrng + "is empty.\n";
}
huskymailPresent = strng.indexOf("@mtu.edu");
if (huskymailPresent < 1){
error= nameStrng + "is not an MTU email address";
}  

else {
//test email for illegal characters
       var illegalChars= /[\W\x20]+$/;
         if (strng.match(illegalChars)) {
          error = nameStrng + "contains illegal characters.\n";
       }
    }
return error;    
}

function checkEmailChar (strng, nameStrng){
	var error="";
	if (strng == "") {
   error = "";
}
else{
var emailFilter=/^.+@.+\..{2,3}$/;
    if (!(emailFilter.test(strng))) { 
       error = nameStrng + "is invalid.\n";
    }
    else {
//test email for illegal characters
       var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/
         if (strng.match(illegalChars)) {
          error = nameStrng + "contains illegal characters.\n";
       }
    }
}
	return error;    
}


function checkRadio(checkvalue, nameStrng) {
var error = "";
   if (!(checkvalue)) {
       error = nameStrng + "~ Please check a radio button.\n";
    }
return error;
}

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

function checkPhoneChar (strng, nameStrng) {
var error = "";
if (strng == "") {
   error = "";
}
else{
var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = nameStrng + "contains illegal characters.\n";
  
    }
    else if (!(stripped.length == 10)) {
	error = nameStrng + "is the wrong length. Make sure you included an area code.\n";
    }
}
	return error;
}