function validateFormOnSubmit(theForm) {
var reason = "";

  reason += validateName(theForm.name);
  reason += validateEmail(theForm.email);


  if (reason != "") {
    alert("\n" + reason);
    return false;
  }
  return true;
}

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

function validateName(fld) {
    var error = "";

    if ((fld.value.length < 3)) {
        fld.style.background = 'Yellow';
		fld.focus();
        error = "Please enter your or a contact's name.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;
}
function validateAddress(fld) {
    var error = "";

    if ((fld.value.length < 3)) {
        fld.style.background = 'Yellow';
		fld.focus();
        error = "Please enter where you would like to be picked up.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;
}
function validateTime(fld) {
    var error = "";

    if ((fld.value.length < 3)) {
        fld.style.background = 'Yellow';
		fld.focus();
        error = "Please enter the time you would like to be picked up.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;
}
function validateDate(fld) {
    var error = "";

    if ((fld.value.length < 3)) {
        fld.style.background = 'Yellow';
		fld.focus();
        error = "Please enter the date you would like to be picked up.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;
}
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 = 'Yellow';
		fld.focus();
        error = "Please enter an email address.\n";
    } else if (!emailFilter.test(tfld)) {              //test email for illegal characters
        fld.style.background = 'Yellow';
		fld.focus();
        error = "Please enter a valid email address.\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = 'Yellow';
		fld.focus();
        error = "Please enter a valid email address.\n";
    } else {
        fld.style.background = 'White';
    }
    return error;
}

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

   if (fld.value == "") {
        error = "Please enter a phone number.\n";
        fld.style.background = 'Yellow';
		fld.focus();
    } else if (isNaN(parseInt(stripped))) {
        error = "The phone number contains illegal characters.\n";
        fld.style.background = 'Yellow';
		fld.focus();
    } else if ((stripped.length <10) || (stripped.length >20)) {
        error = "Please check your phone Number. Make sure you included an area code.\n";
        fld.style.background = 'Yellow';
		fld.focus();
    } else {
        fld.style.background = 'White';
    }
    return error;
}