Question

Javascript date validation - combining month, day and year

Asked by: ChristinaPupo

Hi,

How would I add 3 form fields together to create one variable in javascript? I have 3 form fields: StartMonth, StartDay, StartYear and I want to create a validation in javascript but first need to combine these fields into one to create a date like: 07/19/2007.

This is the function that I need to change:

function ValidateForm(){
      var dt=document.Event.txtDate
      if (isDate(dt.value)==false){
            dt.focus()
            return false
      }
    return true
 }

But instead of:
var dt=document.Event.txtDate

I need to comnine 3 formfields...
document.Event.StartMonth
document.Event.StartDay
document.Event.StartYear

as "var dt" fomatted like 07/19/2007.

I know this is simple but I don't know javascript very well and I know there is a guru out there who can help very quickly. Thanks in advance.

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Asked On
2007-07-19 at 17:17:56ID22708738
Tags

date

,

javascript

,

validation

,

day

Topic

JavaScript

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: ChristinaPupoPosted on 2007-07-19 at 18:02:37ID: 19527795

I have this but it's not working

var dtmonth=document.Event.StartMonth;
var dtday=document.Event.StartDay;
var dtyear=document.Event.StartYear;
var dt= (dtmonth + "/" + dtday + "/" + dtyear);

Can anyone help?

 

by: devicPosted on 2007-07-19 at 18:53:45ID: 19527996

hi Christina,
you need add also ".value" to get the value

var dtmonth=document.Event.StartMonth.value;
var dtday=document.Event.StartDay.value;
var dtyear=document.Event.StartYear.value;
var dt= (dtmonth + "/" + dtday + "/" + dtyear);

 

by: ChristinaPupoPosted on 2007-07-19 at 18:57:58ID: 19528011

Thanks but what if they are select boxes?

 

by: steveberzinsPosted on 2007-07-19 at 20:42:43ID: 19528573

.value will still work... as long as the option value is there.

this will work fine:
<select name="StartMonth">
  <option value="01">01</option>
  <option value="02">02</option>
  <option value="03">03</option>
...
</select>

this would work, but .value wouldn't, you'd have to get the selected items text, not quite as easy...so do it like above.
<select name="StartMonth">
  <option>01</option>
  <option>02</option>
  <option>03</option>
...
</select>

 

by: ChristinaPupoPosted on 2007-07-19 at 21:02:41ID: 19528636

Thanks!

20120131-EE-VQP-002

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