# Taking Date From Form Field And Checking If Over 18 Years Old?

Dec 8, 2010

I am having some trouble with my code in that I am trying to take the value from the date of birth field and check to see if over 18 years old. I they are not over 18, a window.alert dialog box pops up to tell them. Below is the check if 18 validation.

Script section in the document head:

//check if over 18
function overAge(){
var age;

[code]....

Code for body section:

Date of Birth: <br/>
<input type = "text" name = "date" value = "(mm/dd/yyyy)"/>

## JQuery :: List Years Back To A Certain Date?

Jun 3, 2010

I want to basically create an array of years from the current year back to a specified year.

## JavaScript Date Difference, Accounting For Leap Years

Jun 19, 2006

I'm really sorry to post this as I know it must have been asked
countless times before, but I can't find an answer anywhere.

Does anyone have a snippet of JavaScript code I could borrow which
calculated the difference in years and days between two dates, and
takes leap years into account?

I'm calculating the difference in the usual way, i.e....

var difference = dateTo.getTime() - dateFrom.getTime();

....and converting this millisecond value into days by using...

var daysDifference = (difference/1000/60/60/24);

But how do I then display the difference in days AND years? I've tried
the following:

var yearsDifference = Math.floor(daysDifference/365.25);
var daysLeft = Math.floor(daysDifference-(yearsDifference*365.25));

....but it gives me inaccuracies. For example, if I use my code to
calculate the difference between 05/01/1998 and 05/01/2000 it returns 1
year and 364 days!

## Date Comparisons Not Taking The Year Into Consideration

Aug 29, 2005

I am having problems while sorting my report on the date column.

It sorts on the day and month but does not sort on the Year

for ex.
if I sort on the date i get the following results: (mm/dd/yyyy)
01/03/2004
01/04/2004
01/05/2003
01/06/2003
01/07/2004

## Opposite Of Undefined When Checking If A Form Field Is Filled Or Not?

Dec 13, 2011

What I am wanting to do is have my form open up a new part of the form when the previous sections are filled out. i.e name field shows, when it has content, the next field opens up for it to be filled out, and so on.

## Copy Date From Field To Field In A Form

Feb 15, 2006

I have a site for property bookings with 2 calendars to enter start and end date. The calendar im using doesnt have any obvious facility to copy yhe date to 2 fields so each one has to be done, months in advance this can be a real pain.

Does anyone have any ideas how i can take the data inserted into one field and copy it to the second?

## Displaying The Date In A Form Field?

Jan 6, 2010

I am using the follow code to display the date in a form field, but my date is stuck as 20100106, when my computer shows 20100107.

Code:
<script language="javascript">
function setIt() {
var d = new Date(2010,01,06);
s = d.getFullYear();

[Code]....

## Populate A Form Field With A Date Generated By Code?

Apr 14, 2009

I have used this code to generate a date that is 30 days from the current date:

<script type="text/javascript">
var dat=new Date();
dat.setDate(dat.getDate() + 30);

[code].....

## Generate An Ajax Form Based On A Database Value Of Max And Min Years - Loop?

Nov 12, 2011

I am trying to generate an ajax form based on a database value of max and min years. At present i have the following.

[Code]...

What I am struggling with is the logic to say if minyears is more than 1 (string in option needs to say years), then add in every year between min and max as additional options. My brain has been melting with this for a few days now

## Checking The Date Calculation?

Sep 22, 2011

I have a javascript that should convert any date into a number between 1 and 260. Based on the outcome of that calculation, a viewer is directed to a specific web page.How can I verify the calculation? How can I see what number javascript is arriving at so I can backtrack to the error? It is not serving up the correct page.

I have compared the results to a calculator on another website [URL] that uses a different script to calculate the same result -- that's why I am saying the end results are not correct. On the other website, scroll down to where you enter a date. It returns a name just above the date (example: July 25, 1970 returns Electric Star). The script I included above returns Yellow Sun. July 25, 1970 should = 68.

function calculate() {
if(!isValidDate())
return;

[code]....

## Checking For A Valid Date?

Feb 13, 2007

I've been doing a bit of research and haven't found anything too easy. Can anyone point me to an article that has a function written in javascript that validates that a date that has been submitted via a form that it is a valid date?

## Checking That A Date Is In The Past Or Future?

Sep 13, 2010

I have a problem checking that a date is in the past or future.Everything seems fine but the alert always comes back saying the date is in the past.

function OpenTimesheet(TSdate)
{
var SelectedDate = new Date(TSdate)

[code]...

TSdate is in yyyy/mm/dd format and looks fine, in both alerts the dates are written correctly, it just always says they are a 'BEFORE' date regardless.

## Update A Txt Field With The Current Date With Onchange Dropdown Field?

Aug 7, 2009

I want to create a javascript function where I have a dropdown list and onChage I want to update a txt field with the current date in the dd/mm/yyyy format.

## Field Checking Doesn't Work

Jan 3, 2009

This script is suppose to check for empty fields and check if the expiry_date field on the form is in the right format.

## Setting Field Names For Checking By Variable?

Aug 9, 2010

Have the Javascript function below which takes the name of an input on the form passed as a variable so that 1 function can check many inputs as I have up to 3 fields per form that can accept this data range.

function contact_number_check(formObj,field)
{
var obj = document.forms[formObj];
var regExp = /^([0-9 ])+\$/;

[Code]...

## IE :: Date Loading On A Booking Form - Date Does Not Load On Internet Explorer?

Feb 14, 2011

I have added a booking form to a website with belongs to fastbooking.You can see a temporary website here. http:[url]....It works perfectly fine in Mozilla Firefox, Google Chrome, Opera and Safari but it does not load on Internet Explorer.On the other browsers the form loads todays date and the year is generated but on IE the date stays on 01-01 and no year is generated.I'm using wordpress as a cms.I think the code that is not loading is <body onLoad='start();'>But I'm not sure. The code of the year is

<select name='fromyear' class="input" onChange='update_departure();'>
<option value="0"></option>
</select> But since it's no just the year I assume its the onload code.

<body onLoad='start();' <?php if(function_exists('body_class')) body_class(); ?>>

So now wordpress generates the following code when it loads the page

## Checking Input Fields(text) Value When Field Is Loosing Focus

Mar 17, 2006

I have a input field (text field) in my html page. User should give input as a string like following 12 345 678,0 If user gives input in format 12345678,0 and leves the input field how can I format the value 12345678,0 into format 12 345 678,0?

Are there any Javascript that can handle this with Regular Expressions?

## Generate Dynamic Date Field With Date Mask "mm/dd/yyy"?

Aug 19, 2011

i am trying to generate a dynamic datefield with date mask "mm/dd/yyyy" and trying to insert it into Oracle db ...i still got the error ORA invalid month ehich means the date filed is not recognized as date:below is what i am doing :newStartDate = document.createElement( 'INPUT' ); newStartDate.setAttribute('type','Date'); newStartDate.setAttribute('id1','id'+ elementid+elementrow); newStartDate.setAttribute('name','StartDateName'+ elementid+elementrow); newStartDate.size=8; newStartDate.style.backgroundColor= bgc;

## Copy And Paste Form RTF Document Into Field In Asp Form Cause It To Bypass Field Length And Javascript Validation - How To Overcome?

Jul 23, 2005

I have a web form with several fields. If I copy & paste from a RTF document into a field, the javascript validation and field length are bypassed and cause the form to fail.

## Form Checking

Apr 1, 2005

I'm building a site that requires user registration, I've already built myself a PHP based user registrationg system, and it already has all the usual checks that are required before letting someone sign up (i.e. that the username is unique, that all required fields are filled, that the two passwords match, that the email address is valid, etc..) using PHP, and so I could ship the system as it is.. but.. I wanted to add some JavaScript checks to it aswell (just to be sure, and to save processor power, etc.. you know how it is). Code:

## Jquery :: Form Field Clear \ Form Field Reset?

Nov 12, 2011

i think this will help people a lot, cuz i couldn't find any simple answer by googling 3 hours...i need a very very simple jquery form field reset.here is the picture what i need:

HTML Code:
<script type='text/javascript' src='http://code.jquery.com/jquery-1.6.4.min.js'></script>
<script>

[code]....

## Checking Number In Form?

Jul 12, 2010

I'm trying to do this with PHP, although I think it would be easier if I used JavaScript, or maybe the same, I'm not sure.

If a user enters a value into the textbox, I want him to be able to move on only if it's a number, otherwise have text come up next to the textbox saying that he should enter a number.

## Checking Form Value Is Whole Number?

Apr 4, 2009

I have another problem (Im not very handy with javascript).I want to check if a value entered into a form is a whole number. This means it cannot contain a decimal.I wanted to use isNumeric() but realised that allows for decimals.Is there a way I can make sure a value is simply a whole number (0-9)

## Get/format Date Field

Jul 23, 2005

I have an asp page that uses a calendar.js (pop-up) file to add an
exact date format in the text field (txtDDate). My problem is I need
some javascript that sets an alert that does not allow them to select
today.

example:
var dtToday = Date()
if(document.frmSoftware.txtDDate.value == dtToday)
{
value in the "Delivery Date" field.");
return false
}

But dtToday is blank....How can I get dtToday value? Also, when I set
the dtToday value outside javascript and used a Response.Write to see
what format Date() came up with - it gave me 1/24/2005 - but the
calendar pop-up gives me 01/24/2005....could this also be the issue?

## Checking The Values Of Two Form Fields

Jul 23, 2005

i have a form and would like to check two fields.
if field 1 containes the letter 'c' and the other field contains
'undefined', then an error should apprear ina box on the screen.

can anyone point me a piece of code ?

## JQuery :: Checking Form Value Before Submit?

May 9, 2011

This should be so simple but it isn't working. I just want to check that the value of a form element isn't empty before the form is submitted, if it is empty display an error, if not,submit the form. 101 right?[code]So how do I make the form not submit on fail?