diff --git a/apps/calendar/ajax/importdialog.php b/apps/calendar/ajax/importdialog.php
index 983a3d95a8400de43bce6d91cdb8c9b0c3259f53..f6b8453fc22593ba6bb47e1f876b03e0fd764728 100644
--- a/apps/calendar/ajax/importdialog.php
+++ b/apps/calendar/ajax/importdialog.php
@@ -1,20 +1,17 @@
 <?php
 /**
- * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
+ * Copyright (c) 2012 Georg Ehrke <ownclouddev at georgswebsite dot de>
  * This file is licensed under the Affero General Public License version 3 or
  * later.
  * See the COPYING-README file.
  */
 
 require_once('../../../lib/base.php');
-
+OC_JSON::checkLoggedIn();
+OC_Util::checkAppEnabled('calendar');
 $l10n = new OC_L10N('calendar');
-
-if(!OC_USER::isLoggedIn()) {
-	die('<script type="text/javascript">document.location = oc_webroot;</script>');
-}
-OC_JSON::checkAppEnabled('calendar');
-
 $tmpl = new OC_Template('calendar', 'part.import');
+$tmpl->assign('path', $_POST['path']);
+$tmpl->assign('filename', $_POST['filename']);
 $tmpl->printpage();
 ?>
diff --git a/apps/calendar/import.php b/apps/calendar/import.php
index 759726b8d10172eea6faffd770b55b2ad73dfe49..d1186e691e516f7053a0671489453224272ebc72 100644
--- a/apps/calendar/import.php
+++ b/apps/calendar/import.php
@@ -1,46 +1,122 @@
 <?php
 /**
- * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
+ * Copyright (c) 2012 Georg Ehrke <ownclouddev at georgswebsite dot de>
  * This file is licensed under the Affero General Public License version 3 or
  * later.
  * See the COPYING-README file.
  */
-
+//check for calendar rights or create new one
+ob_start();
 require_once ('../../lib/base.php');
 OC_JSON::checkLoggedIn();
 OC_Util::checkAppEnabled('calendar');
-
-if($_GET["import"] == "existing"){
-	$calid = $_GET["calid"];
-	$calendar = OC_Calendar_App::getCalendar($calid);
-	if($_GET["path"] != ""){
-		$filename = $_GET["path"] . "/" . $_GET["file"];
-	}else{
-		$filename = "/" . $_GET["file"];
-	}
-}else{
+$progressfile = 'import_tmp/' . md5(session_id()) . '.txt';
+if(is_writable('import_tmp/')){
+	$progressfopen = fopen($progressfile, 'w');
+	fwrite($progressfopen, '10');
+	fclose($progressfopen);
+}
+$file = OC_Filesystem::file_get_contents($_POST['path'] . '/' . $_POST['file']);
+if($_POST['method'] == 'new'){
 	$id = OC_Calendar_Calendar::addCalendar(OC_User::getUser(), $_POST['calname']);
 	OC_Calendar_Calendar::setCalendarActive($id, 1);
-	$calid = $id;
-	if($_POST["path"] != ""){
-		$filename = $_POST["path"] . "/" . $_POST["file"];
+}else{
+	$calendar = OC_Calendar_App::getCalendar($_POST['id']);
+	if($calendar['userid'] != OC_USER::getUser()){
+		OC_JSON::error();
+		exit();
+	}
+	$id = $_POST['id'];
+}
+//analyse the calendar file
+if(is_writable('import_tmp/')){
+	$progressfopen = fopen($progressfile, 'w');
+	fwrite($progressfopen, '20');
+	fclose($progressfopen);
+}
+$searchfor = array('VEVENT', 'VTODO', 'VJOURNAL');
+$parts = $searchfor;
+$filearr = explode('
+', $file);
+$inelement = false;
+$parts = array();
+$i = 0;
+foreach($filearr as $line){
+	foreach($searchfor as $search){
+		if(substr_count($line, $search) == 1){
+			list($attr, $val) = explode(':', $line);
+			if($attr == 'BEGIN'){
+				$parts[]['begin'] = $i;
+				$inelement = true;
+			}
+			if($attr == 'END'){
+				$parts[count($parts) - 1]['end'] = $i;
+				$inelement = false;
+			}
+		}
+	}
+	$i++;
+}
+//import the calendar
+if(is_writable('import_tmp/')){
+	$progressfopen = fopen($progressfile, 'w');
+	fwrite($progressfopen, '40');
+	fclose($progressfopen);
+}
+$start = '';
+$nl = '
+';
+for ($i = 0; $i < $parts[0]['begin']; $i++) { 
+	if($i == 0){
+		$start = $filearr[0];
 	}else{
-		$filename = "/" . $_POST["file"];
+		$start .= $nl . $filearr[$i];
 	}
 }
-$vcalendar = OC_Filesystem::file_get_contents($filename);
-$vcalendar = explode("BEGIN:VEVENT", $vcalendar);
-for($i = 1;$i < count($vcalendar);$i++){
-	$vcalendar[$i] = "BEGIN:VEVENT" . $vcalendar[$i];
+$end = '';
+for($i = $parts[count($parts) - 1]['end'] + 1;$i <= count($filearr) - 1; $i++){
+	if($i == $parts[count($parts) - 1]['end'] + 1){
+		$end = $filearr[$parts[count($parts) - 1]['end'] + 1];
+	}else{
+		$end .= $nl . $filearr[$i];
+	}
 }
-for($i = 1;$i < count($vcalendar) - 1;$i++){
-	$vcalendar[$i] = $vcalendar[$i] . "END:VCALENDAR";
+if(is_writable('import_tmp/')){
+	$progressfopen = fopen($progressfile, 'w');
+	fwrite($progressfopen, '50');
+	fclose($progressfopen);
+}
+$importready = array();
+foreach($parts as $part){
+	for($i = $part['begin']; $i <= $part['end'];$i++){
+		if($i == $part['begin']){
+			$content = $filearr[$i];
+		}else{
+			$content .= $nl . $filearr[$i];
+		}
+	}
+	$importready[] = $start . $nl . $content . $nl . $end;
+}
+if(is_writable('import_tmp/')){
+	$progressfopen = fopen($progressfile, 'w');
+	fwrite($progressfopen, '70');
+	fclose($progressfopen);
+}
+if(count($parts) == 1){
+	OC_Calendar_Object::add($id, $file);
+}else{
+	foreach($importready as $import){
+		OC_Calendar_Object::add($id, $import);
+	}
 }
-for($i = 1;$i < count($vcalendar);$i++){
-	$vcalendar[$i] = $vcalendar[0] . $vcalendar[$i];
+//done the import
+if(is_writable('import_tmp/')){
+	$progressfopen = fopen($progressfile, 'w');
+	fwrite($progressfopen, '100');
+	fclose($progressfopen);
 }
-for($i = 1;$i < count($vcalendar);$i++){
-	OC_Calendar_Object::add($calid, $vcalendar[$i]);
+sleep(3);
+if(is_writable('import_tmp/')){
+	unlink($progressfile);
 }
-OC_JSON::success();
-?>
+OC_JSON::success();
\ No newline at end of file
diff --git a/apps/calendar/import_tmp/Info b/apps/calendar/import_tmp/Info
new file mode 100644
index 0000000000000000000000000000000000000000..abafbce435c705366fc97ba2b15b1e2fe962d1eb
--- /dev/null
+++ b/apps/calendar/import_tmp/Info
@@ -0,0 +1,2 @@
+This folder contains static files with the percentage of the import.
+Requires write permission
diff --git a/apps/calendar/js/loader.js b/apps/calendar/js/loader.js
index c21c20275e239419227d5ff3f73895df3b8d05ac..4e483f9864e92cb073e9ef6277c2c3ca71e54acb 100644
--- a/apps/calendar/js/loader.js
+++ b/apps/calendar/js/loader.js
@@ -1,14 +1,76 @@
+/**
+ * Copyright (c) 2012 Georg Ehrke <ownclouddev at georgswebsite dot de>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
 Calendar_Import={
 	importdialog: function(filename){
 		var path = $('#dir').val();
 		$('body').append('<div id="calendar_import"></div>');
-		$('#calendar_import').load(OC.filePath('calendar', 'ajax', 'importdialog.php'), {filename:filename, path:path},	Calendar_Import.initdialog());
+		$('#calendar_import').load(OC.filePath('calendar', 'ajax', 'importdialog.php'), {filename:filename, path:path},	function(){Calendar_Import.initdialog(filename);});
 	},
-	initdialog: function(){
-		
+	initdialog: function(filename){
+		$('#calendar_import_dialog').dialog({
+			width : 500,
+			close : function() {
+				$(this).dialog('destroy').remove();
+				$('#calendar_import').remove();
+			}
+		});
+		$('#import_done_button').click(function(){
+			$('#calendar_import_dialog').dialog('destroy').remove();
+			$('#calendar_import').remove();
+		});
+		$('#progressbar').progressbar({value: 0});
+		$('#startimport').click(function(){
+			var filename = $('#filename').val();
+			var path = $('#path').val();
+			var calid = $('#calendar option:selected').val();
+			if($('#calendar option:selected').val() == 'newcal'){
+				var method = 'new';
+				var calname = $('#newcalendar').val();
+				var calname = $.trim(calname);
+				if(calname == ''){
+					$('#newcalendar').css('background-color', '#FF2626');
+					$('#newcalendar').focus(function(){
+						$('#newcalendar').css('background-color', '#F8F8F8');
+					});
+					return false;
+				}
+			}else{
+				var method = 'old';
+			}
+			$('#newcalendar').attr('readonly', 'readonly');
+			$('#calendar').attr('disabled', 'disabled');
+			var progressfile = $('#progressfile').val();
+			$.post(OC.filePath('calendar', '', 'import.php'), {method: String (method), calname: String (calname), path: String (path), file: String (filename), id: String (calid)}, function(data){
+				if(data.status == 'success'){
+					$('#progressbar').progressbar('option', 'value', 100);
+					$('#import_done').css('display', 'block');
+				}
+			});
+			$('#form_container').css('display', 'none');
+			$('#progressbar_container').css('display', 'block');
+			window.setTimeout('Calendar_Import.getimportstatus(\'' + progressfile + '\')', 500);
+		});
+		$('#calendar').change(function(){
+			if($('#calendar option:selected').val() == 'newcal'){
+				$('#newcalform').slideDown('slow');
+			}else{
+				$('#newcalform').slideUp('slow');
+			}
+		});
 	},
-	getimportstatus: function(){
-		
+	getimportstatus: function(progressfile){
+		$.get(OC.filePath('calendar', 'import_tmp', progressfile), function(percent){
+			$('#progressbar').progressbar('option', 'value', parseInt(percent));
+			if(percent < 100){
+				window.setTimeout('Calendar_Import.getimportstatus(\'' + progressfile + '\')', 500);
+			}else{
+				$('#import_done').css('display', 'block');
+			}
+		});
 	}
 }
 $(document).ready(function(){
diff --git a/apps/calendar/templates/part.import.php b/apps/calendar/templates/part.import.php
index b8805e6b6ef3fd8cb10c4ad8e89074d8de9f8e78..8f46484b42b67fa38f2ab0f052cab0238b291cc3 100644
--- a/apps/calendar/templates/part.import.php
+++ b/apps/calendar/templates/part.import.php
@@ -1,69 +1,27 @@
-<div id="importdialog" title="<?php echo $l->t("Import Ical File"); ?>">
-<input type="hidden" id="filename" value="<?php echo $_GET["filename"];?>">
-<input type="hidden" id="path" value="<?php echo $_GET["path"];?>">
-<div id="first"><strong style="text-align: center;margin: 0 auto;"><?php echo $l->t("How to import the new calendar?");?></strong>
-<br><br>
-<input style="float: left;" type="button" value="<?php echo $l->t("Import into an existing calendar"); ?>" onclick="$('#first').css('display', 'none');$('#existingcal').css('display', 'block');">
-<input style="float: right;" type="button" value="<?php echo $l->t("Import into a new calendar");?>" onclick="$('#first').css('display', 'none');$('#newcal').css('display', 'block');">
-</div>
-<div id="existingcal" style="display: none;">
-<strong><?php echo $l->t("Please choose the calendar"); ?></strong><br><br>
-<form id="inputradioform">
+<div id="calendar_import_dialog" title="<?php echo $l->t("Import a calendar file"); ?>">
+<div id="form_container">
+<input type="hidden" id="filename" value="<?php echo $_['filename'];?>">
+<input type="hidden" id="path" value="<?php echo $_['path'];?>">
+<input type="hidden" id="progressfile" value="<?php echo md5(session_id()) . '.txt';?>">
+<p style="text-align:center;"><b><?php echo $l->t('Please choose the calendar'); ?></b>
+<select style="width:100%;" id="calendar" name="calendar">
 <?php
-$calendars = OC_Calendar_Calendar::allCalendars(OC_User::getUser());
-foreach($calendars as $calendar){
-	echo '<input type="radio" style="width: 20px;" name="calendar" id="radio_' . $calendar["id"] . '" value="' . $calendar["id"] . '">' . $calendar["displayname"] . '<br>';
-}
+$calendar_options = OC_Calendar_Calendar::allCalendars(OC_User::getUser());
+$calendar_options[] = array('id'=>'newcal', 'displayname'=>$l->t('create a new calendar'));
+echo html_select_options($calendar_options, $calendar_options[0]['id'], array('value'=>'id', 'label'=>'displayname'));
 ?>
-</form>
-<br><br>
-<input type="button" value="<?php echo $l->t("Import");?>!" onclick="importcal('existing');">
-<br><br>
-<input type="button" value="<?php echo $l->t("Back");?>" onclick="$('#existingcal').css('display', 'none');$('#first').css('display', 'block');">
+</select>
+<div id="newcalform" style="display: none;">
+	<input type="text" style="width: 97%;" placeholder="<?php echo $l->t('Name of new calendar'); ?>" id="newcalendar" name="newcalendar">
+</div>
+<input type="button" value="<?php echo $l->t("Import");?>!" id="startimport">
 </div>
-<div id="newcal" style="display: none;">
-<strong><?php echo $l->t("Please fill out the form"); ?></strong>
-<!-- modified part of part.editcalendar.php -->
-<table width="100%" style="border: 0;">
-<tr>
-<th><?php echo $l->t('Displayname') ?></th>
-<td>
-<input id="displayname" type="text" value="">
-</td>
-</tr>
-</table>
-<!-- end of modified part -->
-<br><br>
-<input type="button" value="<?php echo $l->t("Import");?>!" onclick="importcal('new');">
-<br><br>
-<input type="button" value="<?php echo $l->t("Back");?>" onclick="$('#newcal').css('display', 'none');$('#first').css('display', 'block');">
+<div id="progressbar_container" style="display: none">
+<p style="text-align:center;"><b><?php echo $l->t('Importing calendar'); ?></b>
+<div id="progressbar"></div>
+<div id="import_done" style="display: none;">
+<p style="text-align:center;"><b><?php echo $l->t('Calendar imported successfully'); ?></b></p>
+<input type="button" value="<?php echo $l->t('Close Dialog'); ?>" id="import_done_button">
 </div>
 </div>
-<script type="text/javascript">
-$("input:radio[name='calendar']:first").attr("checked","checked");
-$("#importdialog").dialog({
-	width : 500,
-	close : function(event, ui) {
-		$(this).dialog('destroy').remove();
-		$("#importdialogholder").remove();
-	}
-});
-function importcal(importtype){
-	var path = $("#path").val();
-	var file = $("#filename").val();
-	if(importtype == "existing"){
-		var calid = $("input:radio[name='calendar']:checked").val();
-		$.getJSON(OC.filePath('calendar', '', 'import.php') + "?import=existing&calid=" + calid + "&path=" + path + "&file=" + file, function(){
-			$("#importdialog").dialog('destroy').remove();
-			$("#importdialogholder").remove();
-		});
-	}
-	if(importtype == "new"){
-		var calname = $("#displayname").val();
-		$.post(OC.filePath('calendar', '', 'import.php'), {'import':'new', 'calname':calname, 'path':path, 'file':file}, function(){
-			$("#importdialog").dialog('destroy').remove();
-			$("#importdialogholder").remove();
-		});
-	}
-}
-</script>
\ No newline at end of file
+</div>
\ No newline at end of file