Common Validation Function

Common validation function which used during the project.


you can create common.js file and save these below function and keep in your project it will help to validate your url, email validate, contact number, string, numeric etc.


function getObject(val){
return document.getElementById(val);
}


function trim(b)
{
var i=0;
while(b.charAt(i)==" ")
{
i++;
}
b=b.substring(i,b.length);
len=b.length-1;
while(b.charAt(len)==" ")
{
len--;
}
b=b.substring(0,len+1);
return b;
}

function checkAtLeastOneBox(name) {

count = 0;
elements = document.getElementsByName(name);
len = elements.length;
for (var i = 0; i < len; i++) {
var e = elements[i];
if (e.checked) {
count=count+1;
}
}

if(count == 0){
return false;
} else {
return true;
}
}


function isCharsInBag (s, bag){
var i;
for (i = 0; i < s.length; i++)
{
var c = s.charAt(i);
if (bag.indexOf(c) == -1) return false;
}
return true;
}

function isZIP(s){
return isAlphaNumeric(s);
}


function isValidUrlAddress(strUrl) {
 
  var v = new RegExp();
v.compile("[A-Za-z0-9-_]+\\.[A-Za-z0-9-_%&\?\/.=]+$");
if (!v.test(strUrl)) {
return false;
}
return true;
}



function checkURL(value) {

var urlregex = new RegExp("^(http:\/\/www.|https:\/\/www.|ftp:\/\/www.|www.){1}([0-9A-Za-z]+\.)");
if(urlregex.test(value))
{
return(true);
}
return(false);
}

function isValidUrl(strUrl) {
  var v = new RegExp();
v.compile("^[A-Za-z]+://[A-Za-z0-9-_]+\\.[A-Za-z0-9-_%&\?\/.=]+$");
if (!v.test(strUrl)) {
return false;
}
return true;
}

function isValidUrl2(strUrl) {
  var v = new RegExp();
v.compile("^[A-Za-z0-9-_:\/]+\\.[A-Za-z0-9-_%&\?\/.=]+\\.[A-Za-z]+$");
if (!v.test(strUrl)) {
return false;
}
return true;
}
function isChar(s){
s=trim(s);
return isCharsInBag (s, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ ");
}


function isName(s){
s=trim(s);
return isCharsInBag (s, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ- ");
}
function isName(s){
s=trim(s);
return isCharsInBag (s, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ- ");
}
function isPassword(s)
{

s=trim(s);
return isCharsInBag (s, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_");
}

//function to check valid Telephone,. Fax no. etc
function isPhone(s)
{
return isCharsInBag (s, "0123456789-+(). ");//simple test
var PNum = new String(s);
// 555-555-5555
// (555)555-5555
// (555) 555-5555
// 555-5555
// NOTE: COMBINE THE FOLLOWING FOUR LINES ONTO ONE LINE.
var regex = /^[0-9]{3,3}\-[0-9]{3,3}\-[0-9]{4,4}$|^\([0-9]{3,3}\) [0-9]{3,3}\-[0-9]{4,4}$|^\([0-9]{3,3}\)[0-9]{3,3}\-[0-9]{4,4}$|^[0-9]{3,3}\-[0-9]{4,4}$/;

//var regex = /^\([1-9]\d{2}\)\s?\d{3}\-\d{4}$/; //(999) 999-9999 or (999)999-9999
if( regex.test(PNum))
return true;
else
return false;
}

function isAlphaNumeric(s){
return isCharsInBag (s, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789- ");
}

function isUserName(s){
s=trim(s);
return isCharsInBag (s, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.");
}

function isEmpty(s)
{
s=trim(s);
return ((s == null) || (s.length == 0));
}

//function to check valid email id
function isEmail(s)
{
var regex = /(^[a-z]([a-z_\.]*)@([a-z_\.]*)([.][a-z]{3})$)|(^[a-z]([a-z_\.]*)@([a-z_\.]*)(\.[a-z]{3})(\.[a-z]{2})*$)/i
var regex = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
return regex.test(s);
}


function isInteger (s){
var i;
if (isEmpty(s))
if (isInteger.arguments.length == 1) return 0;
 else return (isInteger.arguments[1] == true);
for (i = 0; i < s.length; i++) {
var c = s.charAt(i);

if (!isDigit(c)) return false;
}

return true;
}

function isDigit (c){
 return ((c >= "0") && (c <= "9"))
}


function setFocus(el){
if(el != "undefined"){
document.getElementById(el).focus();
setAlertStyle(el);
// addEvent(document.getElementById(el),'onblur',function(){ alert('hello!'); })
}else if(typeof gl_el != "undefined"){
gl_el.focus();
}
return true;

}
 

function setAlertStyle(el){
document.getElementById(el).style.border = '2px solid';
document.getElementById(el).style.borderColor = '000';
}
 
function unsetAlertStyle(el){
document.getElementById(el).style.border = '2px solid';
document.getElementById(el).style.borderColor = '#f0f0f1';
}

function SetAllCheckBoxes(FormName,FieldName){
var isChecked=document.getElementById('checkAll').checked;

if(isChecked==true){
var CheckValue='true';

}
else
{
var CheckValue='';
}

if(!FormName)
return;
var objCheckBoxes = document.forms[FormName].elements[FieldName];

if(!objCheckBoxes)
return;
var countCheckBoxes = objCheckBoxes.length;

if(!countCheckBoxes)
objCheckBoxes.checked = CheckValue;
else
// set the check value for all check boxes
for(var i = 0; i < countCheckBoxes; i++)
{
objCheckBoxes[i].checked = CheckValue;


}
}

function isAllcheckBoxSelected(formObj,checkBoxName){
var status = false;
var countCheckBoxes = 0;
var objCheckBoxes = formObj.elements[checkBoxName];
countCheckBoxes = objCheckBoxes.length;
if(countCheckBoxes!=0){
for(var i = 0; i <countCheckBoxes; i++){
if(objCheckBoxes[i].checked==true){
status = true;
}else{
status = false;
break;
}
}
}if(!countCheckBoxes) {
if(objCheckBoxes.checked==true){
status = true;
}else {
status = false;
}
}
return status;
}


function checkMasterCheckBox(checkBoxObj,formName,checkBoxName,masterCheckBoxName){
allCheckBoxCheckedStatus = false;
formObj = getObject(formName);
masterCheckBoxObj = getObject(masterCheckBoxName);
allCheckBoxCheckedStatus = isAllcheckBoxSelected(formObj,checkBoxName);
//alert(allCheckBoxCheckedStatus);
if(checkBoxObj.checked==true){
if(allCheckBoxCheckedStatus==true){
masterCheckBoxObj.checked = true;
}
}else{
masterCheckBoxObj.checked = false;
}

}


function showchkbox(){
$(document).ready(function(){
$('#chkTab').toggle('slow');
$('#downarrow').toggle('slow');
});
}

/**
* shows a popup<br />
* depends on jquery<br />
* there should be empty div named winhidelayer on page.<br />
* @param id of popup div
*/
function showPopup(id){
var height = $(window).height();
var winwidth = $(window).width();

try{

$('#winhidelayer').show();
 $('#winhidelayer').css({
'left' : 0,
'top' :0,
'height' : height,
'width' : winwidth

});
}catch(error){
}
$('#'+id).show();
var snpopup = $('#'+id);
var width = $(document).width();

snpopup.css({
'left' : width/2 - (snpopup.width() / 2),
'top' : height/2 - (snpopup.height() / 2),
'z-index' : 1000000                      
});
}

/**
* hide a popup<br />
* depends on jquery<br />
* there should be empty div named winhidelayer on page.<br />
* @param id of popup div
*/
function hidePopup(id){
try{
$('#winhidelayer').hide();
}catch(error){
}
$('#'+id).hide();
}


function daysInMonth(iMonth,iYear)
{


var days=32 - new Date(iYear, iMonth, 32).getDate();

return days;

}


function validateZipCode(elementValue){
 var zipCodePattern = /^\d{5}$|^\d{5}-\d{4}$/;
 return zipCodePattern.test(elementValue);
}

function allValid(s){
s=trim(s);
return isCharsInBag (s, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz. ");
}

function priceValid(s){
s=trim(s);
return isCharsInBag (s, "0123456789. ");
}

Above function used for validation.