function validateFormOnSubmit(theForm) {
    var reason = "";
    var err = false;
    reason += validateEmpty(theForm.contact_name);
    if (reason != "") {
        alert("Some fields need correction:\n" + reason);
        theForm.contact_name.focus();
        err = true;
    }
	
    if (err == false) {
        reason += validateEmail(theForm.contact_email);
        if (reason != "") {
            alert("Some fields need correction:\n" + reason);
            theForm.contact_email.focus();
            err = true;
        }
    }
    if (err == false) {
        reason += validatePhone(theForm.contact_phone);
        if (reason != "") {
            alert("Some fields need correction:\n" + reason);
            theForm.contact_phone.focus();
            err = true;
        }
    }
    if (err == false) {
        reason += validateEmpty(theForm.contact_comments);
        if (reason != "") {
            alert("Some fields need correction:\n" + reason);
            theForm.contact_comments.focus();
            err = true;
        }
    }
    if (err == false) {
        reason += validateCaptcha(theForm.contact_captcha);
        if (reason != "") {
            alert("Some fields need correction:\n" + reason);
            theForm.contact_captcha.focus();
            err = true;
        }
    }
	
    if (err == false) {
        theForm.submit();
    }
}

function validateFormOnSubmit2(theForm) {
    var reason = "";
    var err = false;
    reason += validateEmpty(theForm.company_name);
    if (reason != "") {
        alert("Some fields need correction:\n" + reason);
        theForm.company_name.focus();
        err = true;
    }
    reason += validateEmpty(theForm.contact_name);
    if (reason != "") {
        alert("Some fields need correction:\n" + reason);
        theForm.contact_name.focus();
        err = true;
    }
    if (err == false) {
        reason += validateEmail(theForm.contact_email);
        if (reason != "") {
            alert("Some fields need correction:\n" + reason);
            theForm.contact_email.focus();
            err = true;
        }
    }
    if (err == false) {
        reason += validatePhone(theForm.contact_phone);
        if (reason != "") {
            alert("Some fields need correction:\n" + reason);
            theForm.contact_phone.focus();
            err = true;
        }
    }
    if (err == false) {
        reason += validateCaptcha(theForm.contact_captcha);
        if (reason != "") {
            alert("Some fields need correction:\n" + reason);
            theForm.contact_captcha.focus();
            err = true;
        }
    }
	
    if (err == false) {
        theForm.submit();
    }
}

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

    if (fld.value.length == 0) {
        fld.style.background = 'Yellow';
        error = "The required field has not been filled in.\n"
    } else {
        fld.style.background = '#FFFFFF';
    }
    return error;
}

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

    if (fld.value.length == 0) {
        fld.style.background = 'Yellow';
        error = "The required field has not been filled in.\n"
	} else if (fld.value!=get_ccx()) {
        fld.style.background = 'Yellow';
        error = "The verification code you enter is incorrect.\n"
    } else {
        fld.style.background = '#FFFFFF';
    }
    return error;
}

function validateUsername(fld) {
    var error = "";
    var illegalChars = /\W/; // allow letters, numbers, and underscores

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

function validatePassword(fld) {
    var error = "";
    var illegalChars = /[\W_]/; // allow only letters and numbers 

    if (fld.value == "") {
        fld.style.background = 'Yellow';
        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 = 'Yellow';
    } else if (illegalChars.test(fld.value)) {
        error = "The password contains illegal characters.\n";
        fld.style.background = 'Yellow';
    } 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 = 'Yellow';
    } else {
        fld.style.background = '#FFFFFF';
    }
    return error;
}

function validateLottery(fld) {
    var error = "";
    var illegalChars = /[\W_]/; // allow only letters and numbers

    if (fld.value == "") {
        fld.style.background = 'Yellow';
        error = "You didn't enter a scratcher number.\n";
    } else if ((fld.value.length != 6)) {
        error = "The scratcher number is the wrong length. Must be 6 characters in length. \n";
        fld.style.background = 'Yellow';
    } else if (illegalChars.test(fld.value)) {
        error = "The scratcher number contains illegal characters.\n";
        fld.style.background = 'Yellow';
    } else {
        fld.style.background = '#FFFFFF';
    }
    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 = 'Yellow';
        error = "You didn't enter an email address.\n";
    } else if (!emailFilter.test(tfld)) {              //test email for illegal characters
        fld.style.background = 'Yellow';
        error = "Please enter a valid email address.\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = 'Yellow';
        error = "The email address contains illegal characters.\n";
    } else {
        fld.style.background = '#FFFFFF';
    }
    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 = 'Yellow';
    } else if (isNaN(parseInt(stripped))) {
        error = "The phone number contains illegal characters.\n";
        fld.style.background = 'Yellow';
    } else if (!(stripped.length == 10)) {
        error = "The phone number is the wrong length. Make sure you included an area code.\n";
        fld.style.background = 'Yellow';
    } else {
        fld.style.background = '#FFFFFF';
    }
    return error;
}

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

    if (fld.value == "") {
        error = "You didn't enter a zip code.\n";
        fld.style.background = 'Yellow';
    } else if (isNaN(parseInt(stripped))) {
        error = "The zip code contains illegal characters.\n";
        fld.style.background = 'Yellow';
    } else if (!(stripped.length == 5)) {
        error = "The zip code is the wrong length. Make sure you included an area code.\n";
        fld.style.background = 'Yellow';
    } else {
        fld.style.background = '#FFFFFF';
    }
    return error;
}

function limitText(limitField, limitNum) {
    if (limitField.value.length > limitNum) {
        limitField.value = limitField.value.substring(0, limitNum);
    }
}