JQuery :: BlockUI - Add DataPicker Function Inside Text Field

I have this code

<div id="question" style="display:none; cursor: default">
<form id=loginForm> ITEM NO<input type="text" id="ITNO" />
<br/> ITEM NAME <input type="text" id="ITNM" />
<br/> Description<input type="text" id="Des" />
<br/>Category<input type="text" id="Cat" />
<br/>Quantity<input type="text" id="Quant" />
<br/> Remark <input type="text" id="Remark" /><br/>
<input type="button" id="yes" value="Save" />
<input type="button" id="no" value="Cancel" /></form>

And this
$('#addT2').click(function() {
$.blockUI({ theme: true,
// true to enable jQuery UI support
draggable: true, // draggable option is only supported when jquery UI script is included
title: 'This is your title',
// only used when theme == true
message: $('#loginForm2'), css: { width: '275px' } });});
$('#yes2').click(
function() {
var ITNO= document.getElementById("ITNO2");
var ITNM= document.getElementById("Repdate");
var Des= document.getElementById("Quant2");
var Cat= document.getElementById("Vend");
var Quant= document.getElementById("RecByt");
var r=confirm("Are You Sure");if (r==true) {
var ITNO1=ITNO.value;var ITNM1=ITNM.value var Des1= Des.value;
var Cat1= Cat.value; var Quant1= Quant.value;
// unblock when remote call returns $.unblockUI(); }
//return false; });
$('#no2').click(function() {
$.unblockUI(); return false;
});});
How if I want to add a datapicker() inside one of these text fields ?