Passing Variables From Jquery To View

Hi I have created Fullcalendar on which if user clicks on any date am using Jquery to get the date. Below that I've form for events which takes Start date and end date and description. Now what i want is

when any one clicks on the Calendar that date should be get from by the Jquery which is already I am getting and the view model below the calendar's start date should be automatically filled with the clicked date.

So what i should do to achieve this.

I'm new to AJAX/JQuery/JSON and Yii.

Thanks for your time and consideration