Date comparison in javascript

[eluser]gmahesha[/eluser]
Hello everyone.
i have doubt regarding the date comparison. my problem is...

In my php form, i have text fields where i am entering the from date, to date in a format specified by the MyClient Base(it uses CI). When i click the submit button, i need to check the date values. So, i am passing the from date, to date, current date and the date format( eg. "dd/mm/yyyy") to the javascript function. in this function i need to check these values.
But i dont know, how to check these values...may be i have to use "convert to time unit" etc....

Plz give me advice.


Thanks in advance.