Question

Here i have “From Date” and “To Date” with submit button. And i’m using telerik radate control for this project. So, I couldn’t add that telerik control.

Here Everything is fine for my requirement and one enhancement is there.

http://jsfiddle.net/ssthil/4tyJ4/

Additional Info :
The “From Date” will not be earlier than 13 months back compare with “To Date”.

How to add the validation for this? looking for your help.

Answer 1

You can set the month to a date in the past and compare with that:

var today = new Date(), // you can use only one Date, this is only for clarity
    back = new Date();
back.setMonth( today.getMonth() - 13);
return fromDate > back;

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Fixing the day as suggested by @mplungjan:

var months = 13;
if (back.getMonth() == (today.getMonth() - months % 12 + 12 + 1) % 12)
   back.setDate(-1);

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Updated fiddle: Use a clone of endDate instead of today to init back, then compare with startDate:

var back = new Date(endDate);
…
return startDate > back;