/* Based on: Travis Beckham ::
http://www.squidfingers.com | http://www.podlob.com
Based on: Manzi Olivier :: http://www.imanzi.com/
Based on: jgw (jgwang@csua.berkeley.edu )/ */

function checkCapsLock(e) {
    var myKeyCode = 0;
    var myShiftKey = false;

    // Internet Explorer 4+
    if (document.all) {
        myKeyCode = e.keyCode;
        myShiftKey = e.shiftKey;

        // Netscape 4
    } else if (document.layers) {
        myKeyCode = e.which;
        myShiftKey = (myKeyCode == 16) ? true : false;

        // Netscape 6
    } else if (document.getElementById) {
        myKeyCode = e.which;
        myShiftKey = (myKeyCode == 16) ? true : false;

    }

    // Upper case letters are seen without depressing the Shift key, therefore Caps Lock is on
    if ((myKeyCode >= 65 && myKeyCode <= 90) && !myShiftKey) {
        alert(errormsg[100]);

        // Lower case letters are seen while depressing the Shift key, therefore Caps Lock is on
    } else if ((myKeyCode >= 97 && myKeyCode <= 122) && myShiftKey) {
        alert(errormsg[100]);

    }
}

function CalcKeyCode(aChar) {
    var character = aChar.substring(0, 1);
    var code = aChar.charCodeAt(0);
    return code;
}

function checkNumber(val) {
    var strPass = val.value;
    var strLength = strPass.length;
    var lchar = val.value.charAt((strLength) - 1);
    var cCode = CalcKeyCode(lchar);


    /* Check if the keyed in character is a number
    do you want alphabetic UPPERCASE only ?
    or lower case only just check their respective
    codes and replace the 48 and 57 */

    if (cCode < 48 || cCode > 57) {
        var myNumber = val.value.substring(0, (strLength) - 1);
        val.value = myNumber;
    }
    return false;
}
function isEmpty(str) {
    return (str == null) || (str.length == 0);
}
// returns true if the string is a valid email
function isEmail(str) {
    if (isEmpty(str)) return false;
    var re = /^[^\s()<>@,;:\/]+@\w[\w\.-]+\.[a-z]{2,}$/i
    return re.test(str);
}
// returns true if the string only contains characters A-Z or a-z or spaces
function isAlpha(str) {
    var re = /[^a-zA-Z\s]/g
    if (re.test(str)) return false;
    return true;
}
// returns true if the string only contains characters 0-9
function isNumeric(str) {
    var re = /[\D]/g
    if (re.test(str)) return false;
    return true;
}
// returns true if the string only contains characters A-Z, a-z or 0-9
function isAlphaNumeric(str) {
    var re = /[^a-zA-Z0-9]/g
    if (re.test(str)) return false;
    return true;
}
// returns true if the string's length equals "len"
function isLength(str, len) {
    return str.length == len;
}
// returns true if the string's length is between "min" and "max"
function isLengthBetween(str, min, max) {
    return (str.length >= min) && (str.length <= max);
}
// returns true if the string is a US phone number formatted as...
// (000)000-0000, (000) 000-0000, 000-000-0000, 000.000.0000, 000 000 0000, 0000000000
function isPhoneNumber(str) {
    var re = /^\(?[2-9]\d{2}[\)\.-]?\s?\d{3}[\s\.-]?\d{4}$/
    return re.test(str);
}
// returns true if the string is a valid date formatted as...
// mm dd yyyy, mm/dd/yyyy, mm.dd.yyyy, mm-dd-yyyy
function isDate(str) {
    var re = /^(\d{1,2})[\s\.\/-](\d{1,2})[\s\.\/-](\d{4})$/
    if (!re.test(str)) return false;
    var result = str.match(re);
    var y = parseInt(result[3]);
    var m = parseInt(result[1]);
    var d = parseInt(result[2]);
    if (m < 1 || m > 12 || y < 1900 || y > 2100) return false;
    if (m == 2) {
        var days = ((y % 4) == 0) ? 29 : 28;
    } else if (m == 4 || m == 6 || m == 9 || m == 11) {
        var days = 30;
    } else {
        var days = 31;
    }
    return (d >= 1 && d <= days);
}
// returns true if "str1" is the same as the "str2"
function isMatch(str1, str2) {
    return str1 == str2;
}
// returns true if the string contains only whitespace
// cannot check a password type input for whitespace
function isWhitespace(str) { // NOT USED IN FORM VALIDATION
    var re = /[\S]/g
    if (re.test(str)) return false;
    return true;
}
// removes any whitespace from the string and returns the result
// the value of "replacement" will be used to replace the whitespace (optional)
function stripWhitespace(str, replacement) {// NOT USED IN FORM VALIDATION
    if (replacement == null) replacement = '';
    var result = str;
    var re = /\s/g
    if (str.search(re) != -1) {
        result = str.replace(re, replacement);
    }
    return result;
}
// validate the form
function validateForm(f, preCheck, newClass, alerttype) {
    var errors = '';
    var errorsa = '';
    if (preCheck != null) errors += preCheck;
    var i, e, t, n, v;
    for (i = 0; i < f.elements.length; i++) {
        e = f.elements[i];
        // skip fieldset items, they have no type and blow up the t = e.type line below
        if (e.id.indexOf('fieldset') > -1) continue;
        if (e.optional) continue;
        t = e.type;
        n = '- '
        n += e.id;
        v = e.value;
        if (t == 'text' || t == 'password' || t == 'textarea') {

            if (isEmpty(v)) {
                errors += n + errormsg[1] + '<br>';
                errorsa += n + errormsg[1] + '\n';
                e.className = newClass;
                continue;
            }
            else {
                e.className = 'checkit';
            }
            if (v == e.defaultValue) {
                errors += n + errormsg[2] + '<br>';
                errorsa += n + errormsg[2] + '\n';
                e.className = newClass;
                continue;
            }
            else {
                e.className = 'checkit';
            }
            if (e.isAlpha) {
                if (!isAlpha(v)) {
                    errors += n + errormsg[3] + '<br>';
                    errorsa += n + errormsg[3] + '\n';
                    overlib('Please correct the highlighted items', CAPTION, 'Errors Detected', FGCOLOR, '#FFFF99', BGCOLOR, '#AAAA92', BORDER, 4, CAPTIONFONT, 'Arial', TEXTFONT, 'Arial', TEXTSIZE, 1);
                    e.className = newClass;
                    continue;
                }
                else {
                    e.className = 'checkit';
                }
            }
            if (e.isNumeric) {
                if (!isNumeric(v)) {
                    errors += n + errormsg[4] + '<br>';
                    errorsa += n + errormsg[4] + '\n';
                    e.className = newClass;
                    continue;
                }
                else {
                    e.className = 'checkit';
                }
            }
            if (e.isAlphaNumeric) {
                if (!isAlphaNumeric(v)) {
                    errors += n + errormsg[5] + '<br>';
                    errorsa += n + errormsg[5] + '\n';
                    e.className = newClass;
                    continue;
                }
                else {
                    e.className = 'checkit';
                }
            }
            if (e.isEmail) {
                if (!isEmail(v)) {
                    errors += v + errormsg[6] + '<br>';
                    errorsa += n + errormsg[6] + '\n';
                    e.className = newClass;
                    continue;
                }
                else {
                    e.className = 'checkit';
                }
            }
            if (e.isLength != null) {
                var len = e.isLength;
                if (!isLength(v, len)) {
                    errors += n + errormsg[7] + len + '<br>';
                    errorsa += n + errormsg[7] + '\n';
                    e.className = newClass;
                    continue;
                }
                else {
                    e.className = 'checkit';
                }
            }
            if (e.isLengthBetween != null) {
                var min = e.isLengthBetween[0];
                var max = e.isLengthBetween[1];
                if (!isLengthBetween(v, min, max)) {
                    errors += n + errormsg[8] + min + '-' + max + '<br>';
                    errorsa += n + errormsg[8] + min + '-' + max + '\n';
                    e.className = newClass;
                    continue;
                }
                else {
                    e.className = 'checkit';
                }
            }
            if (e.isPhoneNumber) {
                if (!isPhoneNumber(v)) {
                    errors += v + errormsg[9] + '<br>';
                    errorsa += n + errormsg[9] + '\n';
                    e.className = newClass;
                    continue;
                }
                else {
                    e.className = 'checkit';
                }
            }
            if (e.isDate) {
                if (!isDate(v)) {
                    errors += v + errormsg[10] + '<br>';
                    errorsa += n + errormsg[10] + '\n';
                    e.className = newClass;
                    continue;
                }
                else {
                    e.className = 'checkit';
                }
            }
            if (e.isMatch != null) {
                if (!isMatch(v, e.isMatch)) {
                    errors += n + errormsg[11] + '<br>';
                    errorsa += n + errormsg[11] + '\n';
                    e.className = newClass;
                    continue;
                }
                else {
                    e.className = 'checkit';
                }
            }
        }
        if (t.indexOf('select') != -1) {
            if (isEmpty(e.options[e.selectedIndex].value)) {
                errors += n + errormsg[12] + '<br>';
                errorsa += n + errormsg[12] + '\n';
                e.className = newClass;
                continue;
            }
            else {
                e.className = 'checkit';
            }
        }
        if (t == 'file') {
            if (isEmpty(v)) {
                errors += n + errormsg[13] + '<br>';
                errorsa += n + errormsg[13] + '\n';
                e.className = newClass;
                continue;
            }
            else {
                e.className = 'checkit';
            }
        }
    }
    div = document.getElementById('errordiv');
    if (errors != '') {
        if (alerttype == '2' || alerttype == '3') {
            alert(errorsa);
        }
        if (alerttype == '1' || alerttype == '3') {
            return dispErr(errors, div);
        }
    }
    div.style.display = "none";
    return errors == '';
}

dispErr = function(error, divo) {
    divo.style.display = "block";
    divo.innerHTML = error;
    return false;
}


/*
The following elements are not validated...

button   type="button"
checkbox type="checkbox"
hidden   type="hidden"
radio    type="radio"
reset    type="reset"
submit   type="submit"

All elements are assumed required and will only be validated for an
empty value or defaultValue unless specified by the following properties.

isEmail = true;          // valid email address
isAlpha = true;          // A-Z a-z characters only
isNumeric = true;        // 0-9 characters only
isAlphaNumeric = true;   // A-Z a-z 0-9 characters only
isLength = number;       // must be exact length
isLengthBetween = array; // [lowNumber, highNumber] must be between lowNumber and highNumber
isPhoneNumber = true;    // valid phone number. See "isPhoneNumber()" comments for the formatting rules
isDate = true;           // valid date. See "isDate()" comments for the formatting rules
isMatch = string;        // must match string
optional = true;         // element will not be validated

alerttype = 0            // no error msg
alerttype = 1            // error msg in div
alerttype = 2            // error msg in alert
alerttype = 3            // error msg in div and alert
*/

//============================

// error msg depends on the language
var errormsg = new Array();
errormsg[0] = 'You must check at least one Checkbox.<br>';
errormsg[1] = ' cannot be empty';
errormsg[2] = ' cannot use the default value!';
errormsg[3] = ' can only contain characters A-Z &amp a-z';
errormsg[4] = ' can only contain characters 0-9';
errormsg[5] = ' can only contain characters A-Z &amp a-z &amp 0-9';
errormsg[6] = ' is not a valid email address';
errormsg[7] = ' character number must be less than ';
errormsg[8] = ' character number must be between ';
errormsg[9] = ' is not a valid US phone number!';
errormsg[10] = ' is not a valid date!';
errormsg[11] = ' does not match';
errormsg[12] = ' needs an option selected';
errormsg[13] = ' needs a file to upload';
errormsg[14] = 'If you intend to enter the contest, you must agree to the <a href="./contestrules.htm" target="_blank" >Contest Rules</a>. If you want to contact us for another reason, please call our office or send us <a href="./contactus.htm">an Email</a><br>'
errormsg[15] = 'To enter the contest you must agree to receive the newsletter.  Please check the Newsletter box <br>';
errormsg[16] = 'This page is for registering for our newsletter. If you are trying to reach us for a different reason, please use our <a href="./contactus.htm" >Contact Us</a> page <br>';
errormsg[17] = 'Please choose a value for "How likely are you to recommend J & J" or choose "No Opinion" <br>'
errormsg[18] = 'Because the winner of the contest will be announced only in our email newsletter, you must sign up for the newsletter to enter the contest. <br>'
errormsg[99] = 'All form information will be erased';
errormsg[100] = 'Caps Lock is On.\n\nTo prevent entering your password incorrectly,\nyou should press Caps Lock to turn it off.';