Javascript check session state and stats for Spinner

CheckSessionState.js

		function checkSessionState() {

			SessionChecker = window.setInterval(function () {
				//alert("check session state started");
				//check for session using AJAX again:
				$.ajax({
					type: "POST",
					url: "/Home/CheckForSpinnerSession",
					success: function (returnedData) {
						//alert(r);
						if (returnedData.FileDownloadOK == myGlobalToken) {
							//alert("before hidespinner");
							hideSpinner();
							//$(".animatedSpinnerContainer").html("<h2>The time took to download the file is: </h2><br><b><font style=\"color:red\">" + returnedData.FileDownloadTime + "</font></b>");
							alert(returnedData.FileDownloadTime);
						}
					}
				});

			}, 1000);

		}