AjaxPost

$( document ).on( 'click', '.rem', function () {
       var id=this.id;
       var r="t"+this.id;
       var rid="#t"+this.id;
       var val1=$(this).closest("tr").find('td:eq(0)').text();
       var val2=$(this).closest("tr").find('td:eq(1)').text();
       var code=0;
        alert(val2);
       $.ajax({
			url: "addcourse",
			type: "POST",
			data: { "code": code, "value": val2},
			success: function(data) {
			console.log(data);
			}
			});

$(this).closest("tr").hide();
$('.flat1 tr:last').before("<tr class='"+r+"'><td class='left'>"+val1+"</td><td>"+val2+"</td><td><input type='submit' value='click here' id='" +id+ "' class='ch' name='remove '/> </td></tr>");

   });