/* -*-C++-*-
* File: ValidateForm.js
* RCS: none
* Description: Defines form validation functions for Javascript
* Author: Scott Lundberg,
* Created: Tue Aug 16 10:54:38 2002
* Modified:
* Language: Javascript
* Package: N/A
* Status: Experimental (Do Not Distribute)
*
* (C) Copyright 2002, Scott Lundberg, all rights reserved.
*/
/******************************** -- EXAMPLE -- ********************************
Example
******************************************************************************/
var undefined; // In case it is not defined by the host object
var error = 0; // Used by _checkForm
//#############################################################################
function _checkForm(form) {
/*--------------------------------------------------------------------------
* Uses the id values of form elements to validate the form values.
*
* Inputs: form - The form to check.
*
* Returns: Wether the form is valid.
*------------------------------------------------------------------------*/
error = 0;
// Default error messages
var emailMsg = "The e-mail address you entered is not valid.";
var req_emailMsg = "Please enter a valid e-mail address.";
var emailsMsg = "The e-mail addresses you entered are not valid.";
var req_emailsMsg = "Please enter one or more valid e-mail addresses.";
var phoneMsg = "The phone number you entered is not valid, make sure you " +
"have entered an area code.";
var req_phoneMsg = "Please enter a valid phone number; make sure " +
"you enter an area code.";
var local_phoneMsg = "The phone number is not valid.";
var req_local_phoneMsg = "Please enter a valid phone number.";
var zipMsg = "The zip code is not valid.";
var req_zipMsg = "Please enter a valid zip code.";
var urlMsg = "The web address is not valid. Make sure you " +
"include the 'http://'";
var req_urlMsg = "Please enter a valid web address. Make sure " +
"you include the 'http://'";
var pos_floatMsg; // Defined in the function
var req_pos_floatMsg; // Defined in the function
var numMsg; // Defined in the function
var req_numMsg; // Defined in the function
var pos_intMsg; // Defined in the function
var req_pos_intMsg; // Defined in the function
var credit_card_16 = "Your credit card number must have 16 digits.";
var req_credit_card_16 = "Please enter a credit card number with " +
"16 digits.";
var state_abbrMsg = "The state must be a two letter " +
"abbreviation.";
var req_state_abbrMsg = "Please enter the state as a two letter " +
"abbreviation.";
var country_abbrMsg = "The country must be a two letter " +
"abbreviation.";
var req_country_abbrMsg = "Please enter the country as a two letter " +
"abbreviation.";
var hex_colorMsg = "You must enter the colors as a six digit " +
"hexidecimal numbers.";
var req_hex_colorMsg = "You must enter the color as a six digit " +
"hexidecimal number.";
var colorMsg = "You must enter colors as a six digit " +
"hexidecimal numbers or common names.";
var req_colorMsg = "You must enter a color as a six digit " +
"hexidecimal number or common name.";
var dateMsg = "You entered an invalid date.";
var req_dateMsg = "Please enter a valid date.";
var alphaNumMsg = "You entered an invalid alpha-numeric string.";
var req_alphaNumMsg = "Please enter a valid alpha-numeric string.";
var reqMsg; // Defined in the function
// Loop through each element in the form validating their values
for (var i = 0; i < form.length; i++) {
element = form[i];
// Erase and skip diabled elements
if (element.disabled) {
element.value = "";
continue;
}
// E-mail Addresses
if (element.id.match(/^email_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
msg = document["MSG"+element.name];
else
msg = emailMsg;
_checkEmail(element, msg);
}
} else if (element.id.match(/^req-email_/)) {
if (document["MSG"+element.name] != undefined)
msg = document["MSG"+element.name];
else
msg = req_emailMsg;
req_emailMsg = document["MSG"+element.name];
_checkEmail(element, msg);
}
// Multiple E-mail Addresses
if (element.id.match(/^emails_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
msg = document["MSG"+element.name];
else
msg = emailsMsg;
_checkEmails(element, msg);
}
} else if (element.id.match(/^req-emails_/)) {
if (document["MSG"+element.name] != undefined)
msg = document["MSG"+element.name];
else
msg = req_emailsMsg;
req_emailsMsg = document["MSG"+element.name];
_checkEmails(element, msg);
}
// Phone Numbers (Area code required)
else if (element.id.match(/^phone_/)) {
if (!element.value == "")
_checkPhone(element, phoneMsg);
} else if (element.id.match(/^req-phone_/)) {
_checkPhone(element, req_phoneMsg);
}
// Phone Numbers (Area code not required)
else if (element.id.match(/^local-phone_/)) {
if (!element.value == "")
_checkPhoneLocal(element, local_phoneMsg);
} else if (element.id.match(/^req-local-phone_/)) {
_checkPhoneLocal(element, req_local_phoneMsg);
}
// Zip Codes
else if (element.id.match(/^zip_/)) {
if (!element.value == "")
_checkZip(element, zipMsg);
} else if (element.id.match(/^req-zip_/)) {
_checkZip(element, req_zipMsg);
}
// http URL's
else if (element.id.match(/^url_/)) {
if (!element.value == "")
_checkURL(element, urlMsg);
} else if (element.id.match(/^req-url_/)) {
_checkURL(element, req_urlMsg);
}
// Positive Floats
else if (element.id.match(/^pos-float_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
pos_floatMsg = document["MSG"+element.name];
else
pos_floatMsg = "The " + element.name +
" must be a positive number.";
_checkPosFloat(element, pos_floatMsg);
}
} else if (element.id.match(/^req-pos-float_/)) {
if (document["MSG"+element.name] != undefined)
req_pos_floatMsg = document["MSG"+element.name];
else
req_pos_floatMsg = "The " + element.name +
" must be a positive number.";
_checkPosFloat(element, req_pos_floatMsg);
}
// Numbers
else if (element.id.match(/^num_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
numMsg = document["MSG"+element.name];
else
numMsg = "The " + element.name +
" must be a number.";
_checkNum(element, numMsg);
}
} else if (element.id.match(/^req-num_/)) {
if (document["MSG"+element.name] != undefined)
req_numMsg = document["MSG"+element.name];
else
req_numMsg = "The " + element.name +
" must be a number.";
_checkNum(element, req_numMsg);
}
// Positive Integers
else if (element.id.match(/^pos-int_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
pos_intMsg = document["MSG"+element.name];
else
pos_intMsg = "The " + element.name +
" must be a positive integer.";
_checkPosInt(element, pos_intMsg);
}
} else if (element.id.match(/^req-pos-int_/)) {
if (document["MSG"+element.name] != undefined)
req_pos_intMsg = document["MSG"+element.name];
else
req_pos_intMsg = "The " + element.name +
" must be a positive integer.";
_checkPosInt(element, req_pos_intMsg);
}
// Credit Cards with 16 digits
else if (element.id.match(/^credit-card-16_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
credit_card_16 = document["MSG"+element.name];
_checkCreditCard16(element, credit_card_16);
}
} else if (element.id.match(/^req-credit-card-16_/)) {
if (document["MSG"+element.name] != undefined)
req_credit_card_16 = document["MSG"+element.name];
_checkCreditCard16(element, req_credit_card_16);
}
// State Abbreviations
else if (element.id.match(/^state-abbr_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
state_abbrMsg = document["MSG"+element.name];
_checkStateAbbr(element, state_abbrMsg);
}
} else if (element.id.match(/^req-state-abbr_/)) {
if (document["MSG"+element.name] != undefined)
req_state_abbrMsg = document["MSG"+element.name];
_checkStateAbbr(element, req_state_abbrMsg);
}
// Country Abbreviations
else if (element.id.match(/^country-abbr_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
req_country_abbrMsg = document["MSG"+element.name];
_checkCountryAbbr(element, country_abbrMsg);
}
} else if (element.id.match(/^req-country-abbr_/)) {
if (document["MSG"+element.name] != undefined)
req_country_abbrMsg = document["MSG"+element.name];
_checkCountryAbbr(element, req_country_abbrMsg);
}
// Hex Colors
else if (element.id.match(/^hex-color_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
hex_colorMsg = document["MSG"+element.name];
_checkHexColor(element, hex_colorMsg);
}
} else if (element.id.match(/^req-hex-color_/)) {
if (document["MSG"+element.name] != undefined)
req_hex_colorMsg = document["MSG"+element.name];
_checkHexColor(element, req_hex_colorMsg);
}
// HTML Colors
else if (element.id.match(/^color_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
colorMsg = document["MSG"+element.name];
_checkHTMLColor(element, colorMsg);
}
} else if (element.id.match(/^req-color_/)) {
if (document["MSG"+element.name] != undefined)
req_colorMsg = document["MSG"+element.name];
_checkHTMLColor(element, req_colorMsg);
}
// Dates
else if (element.id.match(/^date_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
dateMsg = document["MSG"+element.name];
_checkDate(element, dateMsg);
}
} else if (element.id.match(/^req-date_/)) {
if (document["MSG"+element.name] != undefined)
req_dateMsg = document["MSG"+element.name];
_checkDate(element, req_dateMsg);
}
// Dates - mysql
else if (element.id.match(/^mysql-date_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
dateMsg = document["MSG"+element.name];
_checkDate(element, dateMsg, "mysql");
}
} else if (element.id.match(/^req-mysql-date_/)) {
if (document["MSG"+element.name] != undefined)
req_dateMsg = document["MSG"+element.name];
_checkDate(element, req_dateMsg, "mysql");
}
// Alpha Numeric
else if (element.id.match(/^alpha-num_/)) {
if (!element.value == "") {
if (document["MSG"+element.name] != undefined)
alphaNumMsg = document["MSG"+element.name];
_checkAlphaNum(element, alphaNumMsg, "mysql");
}
} else if (element.id.match(/^req-alpha-num_/)) {
if (document["MSG"+element.name] != undefined)
req_alphaNumMsg = document["MSG"+element.name];
_checkAlphaNum(element, req_alphaNumMsg, "mysql");
}
// Non Blank
else if (element.id.match(/^req_/)) {
if (document["MSG"+element.name] != undefined)
reqMsg = document["MSG"+element.name];
else
reqMsg = "You left the " + element.name + " field blank.";
_checkNonBlank(element, reqMsg);
}
if (error) break;
}
return !error; // The browser will only submit the form if we return true
}
//#############################################################################
function _checkZip(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid zip code for the form element, and formats the number.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the zip code is valid.
*------------------------------------------------------------------------*/
var zip = formEl.value;
// Canadian
if (zip.match(/^[A-Z]\d[A-Z] *\d[A-Z]\d$/))
return true;
// US
zip = zip.replace(/[ ,\-,\t]*/g, "");
if (zip.length == 5) {
formEl.value = zip;
return true;
}
if (zip.length == 9) {
formEl.value = zip.replace(/(.....)(....)/, "$1-$2");
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkURL(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid http URL in the form element.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the http URL is valid.
*------------------------------------------------------------------------*/
var url = formEl.value;
url = url.replace(/^\W+/, "");
url = url.replace(/\W+$/, "");
// Good
if (url.match(/^http:\/\//i))
return true;
// Good
if (url.match(/^ftp:\/\//i))
return true;
// Good
if (url.match(/^mailto:/i))
return true;
// Good
if (url.match(/^mailto:/i))
return true;
// Good
if (url.match(/^https:\/\//i))
return true;
// Good
if (url.match(/^rtsp:\/\//i))
return true;
// Good
if (url.match(/^gopher:\/\//i))
return true;
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkPhone(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid phone number, and formats the phone number, the area
* code is not required.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the phone number is valid.
*------------------------------------------------------------------------*/
var phone = formEl.value;
phone = phone.replace(/^\W+/, "");
phone = phone.replace(/\W+$/, "");
// Bad
if (phone.match(/[A-z]/)) {
alert(msg);
error = 1;
return false;
}
// Good
phone = phone.replace(/[ ,\-,\t,(,)]*/g, "");
if (phone.length == 10) {
formEl.value = phone.replace(/(...)(...)(....)/, "$1-$2-$3");
return true;
}
if (phone.length == 11) {
formEl.value = phone.replace(/(.)(...)(...)(....)/, "$1-$2-$3-$4");
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkPhoneLocal(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid phone number, and formats the phone number, the area
* code is not required.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the phone number is valid.
*------------------------------------------------------------------------*/
var phone = formEl.value;
phone = phone.replace(/^\W+/, "");
phone = phone.replace(/\W+$/, "");
// Bad
if (phone.match(/[A-z]/)) {
alert(msg);
error = 1;
return false;
}
// Good
phone = phone.replace(/[ ,\-,\t,(,)]*/g, "");
if (phone.length == 7) { // Local
formEl.value = phone.replace(/(...)(....)/, "$1-$2");
return true;
}
if (phone.length == 10) { // Area Code + Local
formEl.value = phone.replace(/(...)(...)(....)/, "$1-$2-$3");
return true;
}
if (phone.length == 11) { // County Code + Area Code + Local
formEl.value = phone.replace(/(.)(...)(...)(....)/, "$1-$2-$3-$4");
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkPosFloat(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a positive floating point number.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is a positive floating point number.
*------------------------------------------------------------------------*/
var num = formEl.value;
// Good
if (num.match(/^\d+\.?\d*$/))
return true;
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkNum(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a number.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is a number.
*------------------------------------------------------------------------*/
var num = formEl.value;
// Good
if (num.match(/^-?\d+\.?\d*$/))
return true;
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkPosInt(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a positive integer number.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is a positive integer number.
*------------------------------------------------------------------------*/
var num = formEl.value;
// Good
if (num.match(/^\d+$/))
return true;
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkEmail(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid email address format.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is in a valid email address format.
*------------------------------------------------------------------------*/
var email = formEl.value;
email = email.replace(/^\W+/, "");
email = email.replace(/\W+$/, "");
// Good
if (email.match(/^([0-9A-z_\.-]+@[0-9A-z_\.-]+,?)+$/)) {
formEl.value = email;
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkEmails(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid email address list.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is in a valid email address format.
*------------------------------------------------------------------------*/
var email = formEl.value;
email = email.replace(/^\W+/, "");
email = email.replace(/\W+$/, "");
// Bad
if (email.match(/[^0-9A-z_\., @-]/)) {
alert(msg);
error = 1;
}
// Good
if (email.match(/[0-9A-z_\.-]+@[0-9A-z_\.-]+\.[0-9A-z_\.-]+/)) {
formEl.value = email;
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkCreditCard16(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid 16 digit credit card number.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is a valid 16 digit credit card number.
*------------------------------------------------------------------------*/
var number = formEl.value;
// Good
number = number.replace(/[^0-9]*/g, "");
if (number.length == 16) {
formEl.value = number.replace(/(....)(....)(....)(....)/,
"$1 $2 $3 $4");
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkAlphaNum(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for only alpha numeric characters and underscore.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is a valid alpha numeric character string.
*------------------------------------------------------------------------*/
var str = formEl.value;
// Good
if (str.match(/^[A-z0-9_]+$/))
return true;
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkCountryAbbr(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid country abbreviation.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is a valid country abbreviation.
*------------------------------------------------------------------------*/
var country = formEl.value.toUpperCase();
// Good
if (country.match(/^[A-Z][A-Z]$/)) {
formEl.value = country;
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkHexColor(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid Hex color code.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is a valid Hex color code.
*------------------------------------------------------------------------*/
var color = formEl.value.toUpperCase();
// Good
if (color.match(/^#?[A-Z0-9]{6}$/)) {
formEl.value = color;
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkHTMLColor(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid HTML color.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is a valid HTML color.
*------------------------------------------------------------------------*/
var color = formEl.value.toLowerCase();
// Good
if (color.match(/^red$/) || color.match(/^green$/) ||
color.match(/^blue$/) || color.match(/^orange$/) ||
color.match(/^teal$/) || color.match(/^brown$/) ||
color.match(/^yellow$/) || color.match(/^gray$/) ||
color.match(/^black$/) || color.match(/^white$/) ||
color.match(/^purple$/) || color.match(/^maroon$/) ||
color.match(/^violet$/) || color.match(/^tan$/) ||
color.match(/^snow$/) || color.match(/^silver$/) ||
color.match(/^pink$/) || color.match(/^Salmon$/) ||
color.match(/^olive$/) || color.match(/^navy$/) ||
color.match(/^magenta$/) || color.match(/^lime$/) ||
color.match(/^indigo$/) || color.match(/^gold$/) ||
color.match(/^cyan$/) || color.match(/^azure$/) ||
color.match(/^beige$/)) {
formEl.value = color;
return true;
}
// Good
if (color.match(/^#?[a-z0-9]{6}$/)) {
formEl.value = color.toUpperCase();
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkStateAbbr(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks for a valid state abbreviation.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is a valid state abbreviation.
*------------------------------------------------------------------------*/
var state = formEl.value.toUpperCase();
// Good
if ((state == "AL") || (state == "AK") || (state == "AS") ||
(state == "AZ") || (state == "AR") || (state == "CA") ||
(state == "CO") || (state == "CT") || (state == "DE") ||
(state == "DC") || (state == "FM") || (state == "FL") ||
(state == "GA") || (state == "GU") || (state == "HI") ||
(state == "ID") || (state == "IL") || (state == "IN") ||
(state == "IA") || (state == "KS") || (state == "KY") ||
(state == "LA") || (state == "ME") || (state == "MH") ||
(state == "MD") || (state == "MA") || (state == "MI") ||
(state == "MN") || (state == "MS") || (state == "MO") ||
(state == "MT") || (state == "NE") || (state == "NV") ||
(state == "NH") || (state == "NJ") || (state == "NM") ||
(state == "NY") || (state == "NC") || (state == "ND") ||
(state == "MP") || (state == "OH") || (state == "OK") ||
(state == "OR") || (state == "PW") || (state == "PA") ||
(state == "PR") || (state == "RI") || (state == "SC") ||
(state == "SD") || (state == "TN") || (state == "TX") ||
(state == "UT") || (state == "VT") || (state == "VI") ||
(state == "VA") || (state == "WA") || (state == "WV") ||
(state == "WI") || (state == "WY")) {
formEl.value = state;
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkRange(formEl, msg, lim1, lim2) {
/*--------------------------------------------------------------------------
* Checks that the value is between lim1 and lim2 inclusive.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
* lim1 - The upper or lower boundary of the range we are checking.
* lim2 - The upper or lower boundary of the range we are checking.
*
* Returns: Wether the value is between lim1 and lim2 inclusive.
*------------------------------------------------------------------------*/
var value = formEl.value;
// Good
if (lim2 > lim1) {
if ((value >= lim1) && (value <= lim2))
return true;
} else {
if ((value >= lim2) && (value <= lim1))
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkLength(formEl, msg, lim1, lim2) {
/*--------------------------------------------------------------------------
* Checks that the value's length is between lim1 and lim2 inclusive.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
* lim1 - The upper or lower boundary of the range we are checking
* lim2 - The upper or lower boundary of the range we are checking
*
* Returns: Wether the value's length is between lim1 and lim2 inclusive.
*------------------------------------------------------------------------*/
var length = formEl.value.length;
// Good
if (lim2 > lim1) {
if ((length >= lim1) && (length <= lim2))
return true;
} else {
if ((length >= lim2) && (length <= lim1))
return true;
}
// Bad
alert(msg);
error = 1;
return false;
}
//#############################################################################
function _checkNonBlank(formEl, msg) {
/*--------------------------------------------------------------------------
* Checks that the value is not blank.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
*
* Returns: Wether the value is not blank.
*------------------------------------------------------------------------*/
var value = formEl.value;
var obj, i;
if (value == "") {
error = 1;
alert(msg);
return false;
}
// Radio buttons
if (formEl.type == "radio") {
obj = formEl.form[formEl.name];
for (i = 0; i < obj.length; i++) {
if (obj[i].checked) return true;
}
error = 1;
alert(msg);
return false;
}
// Good
if (value.match(/[^ ,\t,\r,\n]/))
return true;
// Bad
error = 1;
alert(msg);
return false;
}
//#############################################################################
function _checkDate(formEl, msg, format) {
/*--------------------------------------------------------------------------
* Checks that the value seems is a valid date, and formats the date.
*
* Inputs: formEl - The form element to check.
* msg - The msg to print if the value is not valid.
* format - The format type. (blank, mysql)
*
* Returns: Wether the value is a valid date.
*------------------------------------------------------------------------*/
var value = formEl.value;
var parts, len;
var month, day, year;
var error1 = false;
var foundYear = false;
var tmp;
var months = [
"january", "february", "march", "april", "may", "june", "july",
"august", "september", "october", "november", "december"
];
var days = [
"sunday", "monday", "tuesday", "wednesday", "thursday", "friday",
"saturday"
];
var daysInMonth = [-1, 31, 28, 31, 30, 31, 31, 31, 31, 30, 31, 30, 31];
// Change aliases
value = value.replace(/(1)st/, "$1");
value = value.replace(/(2)nd/, "$1");
value = value.replace(/(3)rd/, "$1");
value = value.replace(/([0,4,5,6,7,8,9])th/, "$1");
value = value.replace(/of\W/ig, "");
value = value.replace(/on\W/ig, "");
value = value.replace(/in\W/ig, "");
value = value.replace(/the\W/ig, "");
value = value.replace(/ day\W/ig, "");
value = value.replace(/month\W/ig, "");
// Remove days of the week
value = value.replace(/sunday[^0-9a-z]*/ig, "");
value = value.replace(/monday[^0-9a-z]*/ig, "");
value = value.replace(/tuesday[^0-9a-z]*/ig, "");
value = value.replace(/wednesday[^0-9a-z]*/ig, "");
value = value.replace(/thursday[^0-9a-z]*/ig, "");
value = value.replace(/friday[^0-9a-z]*/ig, "");
value = value.replace(/saturday[^0-9a-z]*/ig, "");
value = value.replace(/sun[^0-9a-z]*/ig, "");
value = value.replace(/mon[^0-9a-z]*/ig, "");
value = value.replace(/tue[^0-9a-z]*/ig, "");
value = value.replace(/wed[^0-9a-z]*/ig, "");
value = value.replace(/thu[^0-9a-z]*/ig, "");
value = value.replace(/fri[^0-9a-z]*/ig, "");
value = value.replace(/sat[^0-9a-z]*/ig, "");
// We remove all leading zeros so the numbers are not interpreted as octal
value = value.replace(/([^0-9])[0]+/i, "$1");
value = value.replace(/([^0-9])[0]+/i, "$1");
// Alias numbers
value = value.replace(/(first|one)/ig, "1");
value = value.replace(/(second|two)/ig, "2");
value = value.replace(/(third|three)/ig, "3");
value = value.replace(/(fourth|four)/ig, "4");
value = value.replace(/(fifth|five)/ig, "5");
value = value.replace(/(sixth|six)/ig, "6");
value = value.replace(/(seventh|seven)/ig, "7");
value = value.replace(/(eighth|eight)/ig, "8");
value = value.replace(/(nineth|nine)/ig, "9");
value = value.replace(/(tenth|ten)/ig, "10");
value = value.replace(/(eleventh|eleven)/ig, "11");
value = value.replace(/(twelfth|twelve)/ig, "12");
value = value.replace(/(thirteenth|thirteen)/ig, "13");
value = value.replace(/(fourteenth|fourteen)/ig, "14");
value = value.replace(/(fifteenth|fifteen)/ig, "15");
value = value.replace(/(sixteenth|sixteen)/ig, "16");
value = value.replace(/(seventeenth|seventeen)/ig, "17");
value = value.replace(/(eighteenth|eighteen)/ig, "18");
value = value.replace(/(nineteenth|nineteen)/ig, "19");
value = value.replace(/(twentyth|twenty)/ig, "20");
value = value.replace(/(twenty one|twenty first)/ig, "21");
value = value.replace(/(twenty two|twenty second)/ig, "22");
value = value.replace(/(twenty three|twenty third)/ig, "23");
value = value.replace(/(twenty four|twenty fourth)/ig, "24");
value = value.replace(/(twenty five|twenty fifth)/ig, "25");
value = value.replace(/(twenty six|twenty sixth)/ig, "26");
value = value.replace(/(twenty seven|twenty seventh)/ig, "27");
value = value.replace(/(twenty eight|twenty eighth)/ig, "28");
value = value.replace(/(twenty nine|twenty ninth)/ig, "29");
value = value.replace(/(thirty|thirtieth)/ig, "30");
value = value.replace(/(thirty one|thirty first)/ig, "31");
// Combine all seperators into single spaces
value = value.replace(/\W+/g, " ");
parts = value.split(/ /);
len = parts.length;
// Check the names
for (var i = 0; i < len; i++) {
tmp = months.grepAll(parts[i].toLowerCase());
if (tmp && (tmp.length == 1) && (month == undefined)) {
month = (months.grep(tmp[0]) % 12) + 1;
parts.splice(i, 1); // Remove the entry
len--;
i--;
continue;
}
tmp = days.grepAll(parts[i].toLowerCase());
if ((tmp.length == 1) && (day == undefined)) {
day = (days.grep(tmp[0]) % 7) + 1;
parts.splice(i, 1); // Remove the entry
len--;
i--;
}
}
// Check the numbers
for (var i = 0; i < len; i++) {
if (parts[i].match(/[A-z]/)) {;
error1 = true;
break;
} else {
if ((month == undefined) && parseInt(parts[i]) <= 12)
month = parseInt(parts[i]);
else if ((day == undefined) && parseInt(parts[i]) <= 31)
day = parseInt(parts[i]);
else if (year == undefined)
year = parseInt(parts[i]);
else
error1 = true;
}
}
// Update february if we are in a leap year
if (_isLeapYear(year))
daysInMonth[2] = 29;
// Format year
if ((year > 1950) && (year < 2050)) {
year %= 100;
foundYear = true;
}
if (year < 10) year = "0" + year;
// Check to see if the year is ambiguios
if ((len < 3) && (year < 32) && !foundYear) {
if (!confirm(month + "/" + day + "/" + year +
"\nIs this the date you mean to enter?")) {
error1 = true;
}
}
// Bad
if ((error1) || (month < 1 || month > 12) ||
(day < 1 || day > daysInMonth[month]) ||
(day == undefined) ||
(month == undefined) ||
(year == undefined) ||
(year >= 3000)) {
alert(msg);
error = 1;
return false;
}
// Good
if (format == "mysql") {
if (month < 10) month = "0" + month;
if (day < 10) day = "0" + day;
if (year < 50) year = "20" + year;
if ((year > 50) && (year < 100)) year = "19" + year;
formEl.value = year + "-" + month + "-" + day;
} else {
formEl.value = month + "/" + day + "/" + year;
}
return true;
}