Create JS Date objects from the user input and then you can use the
greater-than operator.
function validateDates(f) {
var returnVal = true;
var objStartDate = new Date(f.startDate.value);
var objStopDate = new Date(f.stopDate.value);
if (objStartDate > objStopDate) {
alert('You cannot stop before you start!");
returnVal = false;
}
return returnVal;
}
This assumes that the user-input dates are date strings, e.g. "Aug 3, 1963".
Probably not too likely. If the user-input dates are of the form dd/mm/yy or
similar, you'll need to parse that into integers representing day, month, and
year number (and know that the JS month is 0-based, i.e. December = 11).
You may want to back up your JS validation with server-side (CF) validation as
well.
-David
On Friday, June 29, 2001 9:44 PM, Ali Awan [SMTP:[EMAIL PROTECTED]] wrote:
> I apologize for asking a non-cf question on here, but hey maybe there's a CF
> solution to it.
> I have a page where a user enters two dates in a form. A Start Date and an
> End Date, I want to write a Javascript Validation function that compares the
> two dates to make sure that the End Date is not earlier than the Star Date.
> Does any one know of a good way to achieve this?
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