datePicker

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.css">
<input style="display: none" name="date" type="input" id="datePick"/>
		<span>Week Of: </span>
		<span style="font-weight: bold" id="weekRange">
			
		</span>
      <br/>
      M : <span id="mondayNum"></span>
      <br/>
      TU : <span id="tuesdayNum"></span>
      <br/>
       W : <span id="wednesdayNum"></span>
      <br/>
       TH : <span id="thursdayNum"></span>
       <br/>
       F : <span id="fridayNum"></span>
       <br/>
       SA : <span id="saturdayNum"></span>
       <br/>
       SU : <span id="sundayNum"></span>

JavaScript

var t1;
	$( document ).ready(function()
	{

		//alert(t1);
		$("#datePick").datepicker(
		{
			showWeek:true,
			showOtherMonths: true,
			selectOtherMonths: true,
			firstDay: 1,
			showOn: "button",
			buttonImage: "https://htmlcssphptutorial.files.wordpress.com/2015/09/b_calendar.png",
			buttonImageOnly:true,
			onSelect: function(dateText, inst)
			{
				var dayOne,dayTwo,dayThree,dayFour,dayFive,daySix,daySeven;
				var date = $(this).datepicker('getDate');
				//console.log($.datepicker.iso8601Week(new Date(dateText)));
				tempDay = $.datepicker.formatDate( 'D', date);
				
				if(tempDay == 'Sun')
				{
                    console.log("Sunday");
					console.log(date);					
					console.log(tempDay);
			//	previousWeek = ($.datepicker.iso8601Week(date) - 1);
			//	console.log("Picked day previous Week: " + previousWeek);
			//	
			//	console.log("Current week: " + $.datepicker.iso8601Week(date));
			//	
			//	var nextWeek = ($.datepicker.iso8601Week(date) + 1);
			//	console.log("Picked day following Week: " + nextWeek);
			//	
			//	console.log(dateText);
				dayOne = new Date(date.getFullYear(), date.getMonth(), date.getDate() - date.getDay() + 1);
			//	
				dayTwo = new Date(date.getFullYear(), date.getMonth(), date.getDate() - date.getDay() + 2);
				dayThree = new Date(date.getFullYear(), date.getMonth(), date.getDate()  - date.getDay() + 3);
				dayFour = new Date(date.getFullYear(), date.getMonth(), date.getDate() - date.getDay() + 4);
				dayFive = new Date(date.getFullYear(), date.getMonth(), date.getDate() - date.getDay() + 5);
				daySix = new Date(date.getFullYear(), date.getMonth(), date.getDate() - date.getDay() + 6);
			    daySeven = new Date(date.getFullYear(), date.getMonth(), date.getDate() - date.getDay() + 7);
          $('#weekRange').text($.datepicker.formatDate( 'M d', dayOne) + " to " + $.datepicker.formatDate( 'M d, yy', daySeven));
				$('#mondayNum').text($.datepicker.formatDate( 'd',...