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Comparing two date values

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Apr 23.2007

Hi,

I was wondering if any one could help, i have two texfields on a form

Start Date
End date.

What I want to do is check the values, so if I put this 10/05/2007 in start date and then this in 15/04/2007 it would show an alert saying start date is after the end date and ask themt to change it.

The date format is set like this dd/mm/yyyy

any help or points in the right direction would be great. Thanks.

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JavaScript

2 Comments(s) ↴

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@vijirubaApr 23.2007 — Convert the start time and end time into unix time time format and then validate.
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@ricpApr 23.2007 — You don't actually need to convert it to epoch time (.getTime() method) as comparing the two objects will do a straight comparison, like so:

<i>
</i>var foo = new Date(2005,1,1);
var bar = new Date(2006,1,1);

// leaving us with:

foo &gt; bar == false;
foo &lt; bar == true;


Obviously, if you wish to convert the time difference into days/weeks/etc then converting down to epoch, doing the math, then converting back up to the base you want it on, would probably be the best method.
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