function checkWholesaleForm(theForm) {
    var why = "";
    //why += checkEmail(theForm.email.value);
    //why += checkPhone(theForm.phone.value);
    //why += checkPassword(theForm.password.value);
    //why += checkUsername(theForm.username.value);
    why += checkEmail(theForm.Email.value);
    why += isDifferent(theForm.pswd1.value,theForm.pswd2.value,"Password mismatch");
    why += isEmpty(theForm.pswd1.value,"Password missing.");
    why += isEmpty(theForm.Company.value,"Company name missing.");
    why += isEmpty(theForm.TaxID.value,"TaxID missing.");
    why += isEmpty(theForm.FName.value,"First name missing.");
    why += isEmpty(theForm.LName.value,"Last name missing.");
    why += isEmpty(theForm.Address1.value,"Address missing.");
    why += isEmpty(theForm.City.value,"City missing.");
    why += isEmpty(theForm.State.value,"State missing.");
    why += isEmpty(theForm.Postal.value,"Zipcode missing.");
    
    
   // for (i=0, n=theForm.radios.length; i<n; i++) {
    //    if (theForm.radios[i].checked) {
    //        var checkvalue = theForm.radios[i].value;
   //         break;
   //     } 
  // }
   // why += checkRadio(checkvalue);
   // why += checkDropdown(theForm.choose.selectedIndex);
    if (why != "") {
       alert(why);
       return false;
    }
	return true;
	}

function checkLoginForm(theForm) {
    var why = "";
    why += checkEmail(document.Login.Email.value);
    why += isEmpty(document.Login.password.value,"Password required.");
    if (why != "") {
       alert(why);
       return false;
    }
	document.Login.submit();
	}

function checkContactForm(theForm) {
    var why = "";
    why += checkEmail(document.Contact.Email.value);
    why += isEmpty(document.Contact.Name.value,"Name required.");
    if (why != "") {
       alert(why);
       return false;
    }
	document.Contact.submit();
	}


// 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;
}       


// non-empty textbox

function isEmpty(strng,msg) {
var error = "";
  if (strng.length == 0) {
     error = msg + "\n";
  }
return error;	  
}

// was textbox altered

function isDifferent(strng1,strng2,msg1) {
var error = ""; 
  if (strng1 != strng2) {
     error = msg1 + "\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;
}