Date Validation with Javascript

[maverick]

Hi,

I have a date field in a Submission form datapage and I want to validate that the entered date is greater than today's date.

I tried something like this but it didnt work.

function validateDate()

{

var del_date = '[@InsertRecordGuestOrders_Delivery_date]';

var today = new Date();

if (del_date <= today)

alert("Delivery date has to be later than today");

}

document.getElementById('InsertRecordGuestOrders_Delivery_date').onChange = validateDate();

Would really appreciate any help.

[MayMusic]

Try this: 

<script type="text/javascript"> function validateDate() { var del_date = document.getElementById('InsertRecordGuestOrders_Delivery_date').value; if (Date.parse(del_date) < Date.now()) { alert("Delivery date has to be later than today"); } } document.getElementById('InsertRecordGuestOrders_Delivery_date').onChange = validateDate(); </script>

[maverick]

Thanks for your response Maymusic.

The validation code seems to work but it doesnt seem to run when the date field is changed. However with an old date, if I reload the page, I get the alert - so the code you suggested seems to work.

I tried both onChange and onClick and neither one works. Do you know what else might?