Jason's Date Input Calendar query

[sas207]

Hi there,

I have used Jason's Date Input Calendar, and need a extra functrion for my form to work.
I have two calendar's, an arrival date and a departure date.
I need to count the number of days between the arrival date and the departure date.
Calendar's are setup as follows:

<td colspan="3">Arrival date:
<script type="text/javascript">// <![CDATA[
DateInput('orderdate1', true, 'DD-MON-YYYY')
// ]]></script>
</td>

<td colspan="3">Departure date:
<script type="text/javascript">// <![CDATA[
DateInput('orderdate2', true, 'DD-MON-YYYY')
// ]]></script>
</td>

Could you please advice how I can calculate the amount of days between the two dates then place the number of days into a textbox.

Thank you in advance :-)

[bernie1227]

Here's a function to get the difference between two dates:

function calcDate(date1, date2) {
  var one_day=1000*60*60*24;

  var date1_ms = date1.getTime();
  var date2_ms = date2.getTime();

  var difference_ms = date2_ms - date1_ms;
 
  return Math.round(difference_ms/one_day); 
}

So in order to get the date difference, it would be:

document.getElementById('yourTextBox').value = calcDate(this.form.outerdate1.value, this.form.outerdate2.value);

The only issue, may be format of the date, so you may need to change that.

[sas207]

Thank you Bernie, will give it try and let you know if resolved. :-)