diff --git a/ajax.php b/ajax.php
index 220a7ac..7166aa1 100644
--- a/ajax.php
+++ b/ajax.php
@@ -103,6 +103,7 @@ switch ($action) {
 		$task = new CRObject();
 		$task->set('job', cr_get_GET('job'));
 		$task->set('task', cr_get_GET('task'));
+		$task->set('task', 'node1');
 		$res = task_logs($task);
 		break;
 
diff --git a/init.inc.php b/init.inc.php
index 608639a..2c14bfc 100644
--- a/init.inc.php
+++ b/init.inc.php
@@ -69,6 +69,8 @@ function init_accessMap()
 		/* job */
 		'job.list' => array('root', 'admin', 'developer', 'normal'),
 		'job.submit' => array('root', 'admin', 'developer', 'normal'),
+		'job.stop' => array('root', 'admin', 'developer', 'normal'),
+		'job.stop_others' => array('root', 'admin', 'developer', 'normal'),
 
 		/* system */
 		'system.summary' => array('root', 'admin', 'developer', 'normal'),
diff --git a/job.logic.php b/job.logic.php
index 539bf9d..807cb96 100644
--- a/job.logic.php
+++ b/job.logic.php
@@ -48,8 +48,14 @@ function job_submit(CRObject $job)
 	$job->set('created_by', $job->getInt('created_by'));
 	$data['job'] = json_encode($job);
 	$spider->doPost(YAO_SCHEDULER_ADDR . '?action=job_submit', $data);
-	$res['message'] = $spider->getBody();
+	$msg = json_decode($spider->getBody(), true);
 
+	$res['errno'] = Code::SUCCESS;
+	if ($msg['code'] !== 0) {
+		$res['errno'] = Code::FAIL;
+		$res['msg'] = $msg['error'];
+		return $res;
+	}
 	return $res;
 }
 
@@ -59,21 +65,22 @@ function job_stop(CRObject $job)
 		$res['errno'] = Code::NO_PRIVILEGE;
 		return $res;
 	}
-	$origin = JobManager::get($job);
-	if ($origin === null) {
-		$res['errno'] = Code::RECORD_NOT_EXIST;
-	} else if ($origin['created_by'] !== Session::get('uid') && !AccessController::hasAccess(Session::get('role', 'visitor'), 'job.stop_others')) {
-		$res['errno'] = Code::NO_PRIVILEGE;
-	} else if ($origin['status'] !== '0' && $origin['status'] !== '1') {
-		$res['errno'] = Code::RECORD_REMOVED;
-	} else {
-		$origin['status'] = 4;
-		$res['errno'] = JobManager::update(new CRObject($origin)) ? Code::SUCCESS : Code::UNKNOWN_ERROR;
+	/* TODO: permission check */
+	$spider = new Spider();
+	$data['id'] = $job->get('id', '');
+	$spider->doPost(YAO_SCHEDULER_ADDR . '?action=job_stop', $data);
+	$msg = json_decode($spider->getBody(), true);
+
+	$res['errno'] = Code::SUCCESS;
+	if ($msg['code'] !== 0) {
+		$res['errno'] = Code::FAIL;
+		$res['msg'] = $msg['error'];
+		return $res;
 	}
 	$log = new CRObject();
 	$log->set('scope', Session::get('uid'));
 	$log->set('tag', 'job.stop');
-	$content = array('id' => $job->getInt('id'), 'response' => $res['errno']);
+	$content = array('id' => $job->get('id'), 'response' => $res['errno']);
 	$log->set('content', json_encode($content));
 	CRLogger::log($log);
 	return $res;
diff --git a/modals.php b/modals.php
index 1e3766b..4dd902c 100755
--- a/modals.php
+++ b/modals.php
@@ -105,16 +105,16 @@
 						<div class="row">
 							<div class="col-md-6">
 								<label>Docker Image</label>
-								<div class="form-group">
-									<input type="text" class="form-control task-image" maxlength="256"
-									       placeholder="eg. yao/tensorflow:1.12" required/>
-								</div>
+								<select class="form-control form-control task-image" required>
+									<option value="quickdeploy/yao-tensorflow:1.12" selected>quickdeploy/yao-tensorflow:1.12</option>
+									<option value="nvidia/cuda:9.0-base">nvidia/cuda:9.0-base</option>
+								</select>
 							</div>
 							<div class="col-md-6">
 								<label>CMD</label>
 								<div class="form-group">
 									<input type="text" class="form-control task-cmd" maxlength="255"
-									       placeholder="Command to bring up task" required/>
+									       placeholder="Command to bring up task"/>
 								</div>
 							</div>
 
@@ -128,15 +128,15 @@
 							<div class="col-md-2">
 								<label>CPU Number</label>
 								<div class="form-group">
-									<input type="number" class="form-control task-cpu" step="1" min="1"
+									<input type="number" class="form-control task-cpu" step="1" min="1" value="1"
 									       placeholder="number of CPU required" required/>
 								</div>
 							</div>
 							<div class="col-md-2">
 								<label>Memory</label>
 								<div class="form-group">
-									<input type="number" class="form-control task-mem" step="512" min="512"
-									       placeholder="MB" required/>
+									<input type="number" class="form-control task-mem" step="1024" min="1024"
+									       value="4096" placeholder="MB" required/>
 								</div>
 							</div>
 							<div class="col-md-2">
@@ -149,8 +149,8 @@
 							<div class="col-md-2">
 								<label>GPU Memory</label>
 								<div class="form-group">
-									<input type="number" class="form-control task-gpu-mem" step="512" min="512"
-									       placeholder="MB" required/>
+									<input type="number" class="form-control task-gpu-mem" step="1024" min="1024"
+									       value="4096" placeholder="MB" required/>
 								</div>
 							</div>
 						</div>
diff --git a/static/job.js b/static/job.js
index ea658da..ef7aa28 100755
--- a/static/job.js
+++ b/static/job.js
@@ -26,6 +26,13 @@ function register_events_job() {
 		});
 
 		/* TODO validate form */
+		if (name.length === 0) {
+			return true;
+		}
+		if (workspace.length === 0) {
+			return true;
+		}
+
 
 		$('#modal-job').modal('hide');
 
@@ -227,14 +234,14 @@ window.jobOperateEvents = {
 		var ajax = $.ajax({
 			url: window.config.BASE_URL + "/service?action=job_stop",
 			type: 'POST',
-			data: {id: row.id}
+			data: {id: row.name}
 		});
 		ajax.done(function (res) {
 			if (res["errno"] !== 0) {
 				$("#modal-msg-content").html(res["msg"]);
 				$("#modal-msg").modal('show');
 			}
-			$('#table-link').bootstrapTable("refresh");
+			$('#table-job').bootstrapTable("refresh");
 		});
 		ajax.fail(function (jqXHR, textStatus) {
 			$("#modal-msg-content").html("Request failed : " + jqXHR.statusText);
diff --git a/ucenter.php b/ucenter.php
index cd5c836..71dc216 100755
--- a/ucenter.php
+++ b/ucenter.php
@@ -17,7 +17,7 @@ if (Session::get('uid') === null) {
 	exit;
 }
 
-$page_type = 'home';
+$page_type = 'summary';
 $uid = Session::get('uid');
 $nickname = Session::get('nickname');
 
@@ -48,13 +48,9 @@ if (isset($_GET['logs'])) {
 } elseif (isset($_GET['workspaces'])) {
 	$page_type = 'workspaces';
 
-} elseif (isset($_GET['home'])) {
-	$page_type = 'home';
-
 }
 
 $entries = array(
-	array('home', 'Home'),
 	array('summary', 'Summary'),
 	array('jobs', 'Jobs'),
 	array('workspaces', 'Workspaces'),
@@ -117,25 +113,7 @@ foreach ($entries as $entry) {
 					</div>
 				</div>
 
-				<?php if ($page_type === 'home') { ?>
-					<div id="home">
-						<div class="panel panel-default">
-							<div class="panel-heading">Welcome page</div>
-							<div class="panel-body">
-								Welcome back, <?php echo htmlspecialchars($nickname) ?>.<br/>
-								Now: &nbsp; <?php echo date('H:i:s', time()) ?>
-							</div>
-						</div>
-						<div class="panel panel-default">
-							<div class="panel-heading">Notice</div>
-							<div class="panel-body">
-								<h4 class="text-info">Notices</h4>
-								<p>Nothing new here.</p>
-							</div>
-						</div>
-					</div>
-
-				<?php } elseif ($page_type === 'summary') { ?>
+				<?php if ($page_type === 'summary') { ?>
 					<div id="jobs">
 						<div class="panel panel-default">
 							<div class="panel-heading">Summary</div>