function validateFormOnSubmit(theForm) {
  var reason = "";
  var type = ""; 
  reason += validateEmpty(theForm.FirstName);
  reason += validateEmpty(theForm.LastName);
  j=theForm.LeadType.length; 
  for (i=0; i<j; i++){
    if(theForm.LeadType[i].checked) var type = theForm.LeadType[i].value
  }
  if(type!="Residential"){
    reason += validateEmpty(theForm.Company);
  }
  reason += validateEmail(theForm.Email);
  if (reason != "") {
    return false;
  }
  return true;
}

function validateEmpty(fld) {
    var error = "";
    if (fld.value.replace(/\s/g, '').length == 0) {
        fld.style.background = '#Fbbb76'; 
        error = "The required field has not been filled in.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}

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 = '#Fbbb76';
    } else if (isNaN(parseInt(stripped))) {
        error = "The phone number contains illegal characters.\n";
        fld.style.background = '#Fbbb76';
    } else if (!(stripped.length == 10)) {
        error = "The phone number is the wrong length. Make sure you included an area code.\n";
        fld.style.background = '#Fbbb76';
    }
    return error;
}

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

function validateEmail(fld) {
    var error="";
    var tfld = trim(fld.value);                        // value of field with whitespace trimmed off
    var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
    var illegalChars= /[\(\)\$\#\%\^\&\*\+\=\?\~\!\<\>\,\;\:\\\"\[\]]/ ;
    
    if (fld.value == "") {
        fld.style.background = '#Fbbb76';
        error = "You didn't enter an email address.\n";
    } else if (!emailFilter.test(tfld)) {              //test email for illegal characters
        fld.style.background = '#Fbbb76';
        error = "Please enter a valid email address.\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = '#Fbbb76';
        error = "The email address contains illegal characters.\n";
    } else {
        fld.style.background = 'White';
    }
    return error;
}