Check for Internet Connection

index.html

@@ -7,8 +7,32 @@
 
 	<title>Rambox</title>
 
+	<script type='text/javascript'>
+		var xhr = new XMLHttpRequest();
+		var file = "http://rambox.pro/api/latestversion.json";
+		var randomNum = Math.round(Math.random() * 10000);
+
+		xhr.open('HEAD', file + "?rand=" + randomNum, true);
+		xhr.send();
+
+		xhr.addEventListener("readystatechange", processRequest, false);
+
+		function processRequest(e) {
+			if (xhr.readyState == 4) {
+				if (xhr.status >= 200 && xhr.status < 304) {
+					console.info('Internet Connection', true);
+				} else {
+					console.info('Internet Connection', false);
+					alert('No Internet Connection. Please, check your internet connection and open Rambox again.');
+					require('electron').remote.app.quit();
+				}
+			}
+		}
+	</script>
+
 	<!-- The line below must be kept intact for Sencha Cmd to build your application -->
 	<script id="microloader" type="text/javascript" src="bootstrap.js"></script>
+
 	<!--- Tooltip player -->
 	<script type='text/javascript'>
 	    (function(d, s){