/*
Generic Form Validation.
tboland@gmail.com
http://www.techtoolblog.com
License: Free To Use, If Modified/Added
please send updated source to tboland@gmail.com
To Validate a Form Element Add the Custom Attribute:
validate="VALIDATEHOW"
Your Current Options Are:
"not_empty"
"integer"
"number" - decimal allowed
"email"
"phone" - includes international phone numbers
Multiple Validation uses the following syntax:
validate="not_empty|integer"
To Add a Message Add the Custom Attribute:
msg="Name is a required field"
By Default the Messages are shown next to the form element.
To Show Alert Boxes add a Custom Attribute in the form tag (show_alert):
ADVANCED USERS:
Add Your Own Function Calls to the validate attribute.
It Must return true or false
example:
*/
function Validate(objForm) {
var arrValidated=new Array();
for (var i=0; i 0))
message = arrMessages[j];
InsertError(element, message);
if ((typeof element.focus == "function")||(element.focus)) {
element.focus();
}
return false;
}
else
ClearError(element);
}
}
return true;
}
//Empty Validation
function ValidateNotEmpty(objElement) {
var strValue = GetElementValue(objElement);
var blnResult = true;
if(allTrim(strValue) == "") //check for nothing
{
blnResult = false;
}
return blnResult;
}
//Integer Validation
function ValidateInteger(objElement)
// check for valid numeric strings
{
var strString = GetElementValue(objElement);
var strValidChars = "0123456789";
var strChar;
var blnResult = true;
if(strString.length<=0)
{
return false;
}
// test strString consists of valid characters listed above
for (i = 0; i < strString.length && blnResult == true; i++)
{
strChar = strString.charAt(i);
if (strValidChars.indexOf(strChar) == -1)
{
blnResult = false;
}
}
return blnResult;
}
function ValidateIntegerString(s)
// check for valid numeric strings
{
var strString = s;
var strValidChars = "0123456789";
var strChar;
var blnResult = true;
if(strString.length<=0)
{
return false;
}
// test strString consists of valid characters listed above
for (i = 0; i < strString.length && blnResult == true; i++)
{
strChar = strString.charAt(i);
if (strValidChars.indexOf(strChar) == -1)
{
blnResult = false;
}
}
return blnResult;
}
//Number Validation
function ValidateNumber(objElement)
// check for valid numeric strings
{
var strString = GetElementValue(objElement);
var strValidChars = ".0123456789"; //decimal ok
var strChar;
var blnResult = true;
// test strString consists of valid characters listed above
for (i = 0; i < strString.length && blnResult == true; i++)
{
strChar = strString.charAt(i);
if (strValidChars.indexOf(strChar) == -1)
{
blnResult = false;
}
}
return blnResult;
}
//Email Validation
function ValidateEmail(objElement) {
// Will check for @, period after @ and text in between
var strValue = GetElementValue(objElement);
/*
var in_space = strValue.indexOf(" ");
if (in_space != -1)
{ return false; }
var len = strValue.length;
var alpha = strValue.indexOf("@");
var last_alpha = strValue.lastIndexOf("@");
if (alpha != last_alpha)
{ return false; }
// No @, in first position, or name too short
if (alpha == -1 || alpha == 0 || len<6 )
{ return false; }
var last_p = strValue.lastIndexOf(".");
// Be sure period at least two spaces after @, but not last char.
if (last_p - alpha < 2 || last_p == (len - 1) )
{ return false; }
*/
return emailCheck(strValue);
}
//Valid PhoneNumber
function ValidatePhone(objElement){
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;
var strValue = GetElementValue(objElement);
s=stripCharsInBag(strValue,validWorldPhoneChars);
return (ValidateIntegerString(s) && s.length >= minDigitsInIPhoneNumber);
}
function GetElementValue(objElement) {
var result="";
switch (objElement.type) {
case "text":
case "hidden":
case "textarea":
case "password":
result = objElement.value;
break;
case "select-one":
case "select":
if (objElement.selectedIndex >= 0)
result = objElement.options[objElement.selectedIndex].value;
break;
case "radio":
case "checkbox":
for (var i=0; i @ , ; : \ " . [ ] */
var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
/* The following string represents the range of characters allowed in a
username or domainname. It really states which chars aren't allowed.*/
var validChars="\[^\\s" + specialChars + "\]";
/* The following pattern applies if the "user" is a quoted string (in
which case, there are no rules about which characters are allowed
and which aren't; anything goes). E.g. "jiminy cricket"@disney.com
is a legal e-mail address. */
var quotedUser="(\"[^\"]*\")";
/* The following pattern applies for domains that are IP addresses,
rather than symbolic names. E.g. joe@[123.124.233.4] is a legal
e-mail address. NOTE: The square brackets are required. */
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
/* The following string represents an atom (basically a series of non-special characters.) */
var atom=validChars + '+';
/* The following string represents one word in the typical username.
For example, in john.doe@somewhere.com, john and doe are words.
Basically, a word is either an atom or quoted string. */
var word="(" + atom + "|" + quotedUser + ")";
// The following pattern describes the structure of the user
var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
/* The following pattern describes the structure of a normal symbolic
domain, as opposed to ipDomainPat, shown above. */
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
/* Finally, let's start trying to figure out if the supplied address is valid. */
/* Begin with the coarse pattern to simply break up user@domain into
different pieces that are easy to analyze. */
var matchArray=emailStr.match(emailPat);
if (matchArray==null) {
/* Too many/few @'s or something; basically, this address doesn't
even fit the general mould of a valid e-mail address. */
//alert("Email address seems incorrect (check @ and .'s)");
return false;
}
var user=matchArray[1];
var domain=matchArray[2];
// Start by checking that only basic ASCII characters are in the strings (0-127).
for (i=0; i127) {
//alert("Ths username contains invalid characters.");
return false;
}
}
for (i=0; i127) {
//alert("Ths domain name contains invalid characters.");
return false;
}
}
// See if "user" is valid
if (user.match(userPat)==null) {
// user is not valid
//alert("The username doesn't seem to be valid.");
return false;
}
/* if the e-mail address is at an IP address (as opposed to a symbolic
host name) make sure the IP address is valid. */
var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {
// this is an IP address
for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
//alert("Destination IP address is invalid!");
return false;
}
}
return true;
}
// Domain is symbolic name. Check if it's valid.
var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i