diff --git a/web/templates/batch/batch_create.html b/web/templates/batch/batch_create.html
index b8d06bd..5fc9db8 100644
--- a/web/templates/batch/batch_create.html
+++ b/web/templates/batch/batch_create.html
@@ -91,11 +91,14 @@
     <script src="//cdn.bootcss.com/datatables/1.10.11/js/jquery.dataTables.min.js"></script>
     <script src="//cdn.bootcss.com/datatables/1.10.11/js/dataTables.bootstrap.min.js"></script>
     <script src="//cdn.bootcss.com/datatables-tabletools/2.1.5/js/TableTools.min.js"></script>
-
+    <script src="//cdn.bootcss.com/jquery-validate/1.17.0/jquery.validate.js"></script>
 
     <script type="text/javascript">
     var task_number = 0;
     var mapping_number = 0;
+    $().ready(function() {
+        $("#form").validate();
+    });
 
     function removeTask(obj) {
         $("#task_pannel_" + obj.id).remove();
@@ -129,128 +132,130 @@
                           +'Remove</button></div>';
     }
 
-    $("#add_task").click(function() {
-        task_number += 1;
-        mapping_number = 0;
-        var task_html = '';
-        task_html +=
-              '<div class="panel panel-default" id="task_pannel_' + task_number + '">'
-             +'<div class="panel-heading">'
-             +'<h4 class="panel-title">'
-             +'<a data-toggle="collapse" data-panel="#accordion" href="#collapse' + task_number + '">'
-             +'Task #' + task_number
-             +'</a><div class="box-tools pull-right"><button type="button" id="' + task_number + '" onclick="removeTask(this)" class="btn btn-box-tool"><i class="fa fa-times"></i></button></div>'
-             +'</h4></div>'
-             +'<div id="collapse' + task_number + '" class="panel-collapse collapse in">'
-             +'<div class="panel-body">'
-             +'<div class="form-group">'
-             +'<label class="col-sm-2 control-label">CPU</label>'
-             +'<div class="col-sm-3"><input type="number" class="form-control" name="cpuSetting_' + task_number + '" id="cpuSetting_' + task_number + '" value = 1  />'
-             +'</div>'
-             +'<label class="col-sm-2 control-label">Memory</label>'
-             +'<div class="col-sm-3"><input type="number" class="form-control" name="memorySetting_' + task_number + '" id="memorySetting_' + task_number + '" value = 1024  />'
-             +'</div>MB</div>'
-             +'<div class="form-group">'
-             +'<label class="col-sm-2 control-label">GPU</label>'
-             +'<div class="col-sm-3"><input type="number" class="form-control" name="gpuSetting_' + task_number + '" id="gpuSetting_' + task_number + '" value= 0  />'
-             +'</div>'
-             +'<label class="col-sm-2 control-label">Disk</label>'
-             +'<div class="col-sm-3"><input type="number" class="form-control" name="diskSetting_' + task_number + '"  id="diskSetting_' + task_number + '" value= 1024  />'
-             +'</div>MB</div>'
-             +'<div class="form-group">'
-             +'<label class="col-sm-2 control-label">VNode Count</label>'
-             +'<div class="col-sm-3"><input type="number" class="form-control" name="vnodeCount_' + task_number + '" id="vnodeCount_' + task_number + '" value= 1  />'
-             +'</div>'
-             +'<label class="col-sm-2 control-label">Max Retry Count</label>'
-             +'<div class="col-sm-3"><input type="number" class="form-control" name="retryCount_' + task_number + '" id="retryCount_' + task_number + '" value= 1  />'
-             +'</div></div>'
-             +'<div class="form-group">'
-             +'<label class="col-sm-2 control-label">Source Code Address</label>'
-             +'<div class="col-sm-3"><input type="text" class="form-control" name="srcAddr_' + task_number + '" id="srcAddr_' + task_number + '" value="/root" />'
-             +'</div>'
-             +'<label class="col-sm-2 control-label">Expire Time</label>'
-             +'<div class="col-sm-3"><input type="number" class="form-control" name="expTime_' + task_number + '" id="expTime_' + task_number + '" value= 60  />'
-             +'</div>Seconds</div>'
-             +'<div class="form-group">'
-             +'<label class="col-sm-2 control-label">Stderr Redirect Path</label>'
-             +'<div class="col-sm-3"><input type="text" class="form-control" placeholder="/path/to/file or /path/" name="stdErrRedPth_' + task_number + '" id="stdErrRedPth_' + task_number + '" value="/root/nfs/batch_{jobid}/"  />'
-             +'</div>'
-             +'<label class="col-sm-2 control-label">Stdout Redirect Path</label>'
-             +'<div class="col-sm-3"><input type="text" class="form-control" placeholder="/path/to/file or /path/" name="stdOutRedPth_' + task_number + '" id="stdOutRedPth_' + task_number + '" value="/root/nfs/batch_{jobid}/" />'
-             +'</div></div>'
-             +'<div class="form-group">'
-             +'<label class="col-sm-2 control-label">Dependency&nbsp<i class="fa fa-question-circle" title="The tasks ids that this task depends on, seperate them with commas, eg: 1, 2"></i></label>'
-             +'<div class="col-sm-3"><input type="text" class="form-control" name="dependency_' + task_number + '" id="dependency_' + task_number + '"  />'
-             +'</div>'
-             +'<label class="col-sm-2 control-label">Command</label>'
-             +'<div class="col-sm-3"><input type="text" class="form-control" name="command_' + task_number + '" id="command_' + task_number + '"  />'
-             +'</div></div>'
-             +'<div class="form-group">'
-             +'<label class="col-sm-2 control-label">Run on: </label>'
-             +'<div class="col-sm-3"><input type="radio" name="runon_' + task_number + '" value="all"  checked="checked"/>All vnodes &nbsp'
-             +' <input type="radio" name="runon_' + task_number + '" value="master"  />One vnode(master)</div>'
-             +'<label class="col-sm-2 control-label">Start at the Same Time</label>'
-             +'<div class="col-sm-3"><input type="checkbox" name="atSameTime_' + task_number + '" checked="checked"/>'
-             +'</div></div>'
-                  +'<div class="form-group"><label class="col-sm-2 control-label">Image Choose</label>'
-                      +'<div class="col-sm-10">'
-                          +'<table id="imagetable" class="table table-striped table-bordered table-hover table-image" >'
-                          +'<thead>'
-                          +'<tr>'
-                          +'<th>ImageName</th>'
-                          +'<th>Type</th>'
-                          +'<th>Owner</th>'
-                          +'<th>Description</th>'
-                          +'<th>Choose</th>'
-                          +'</tr>'
-                          +'</thead>'
-                          +'<tbody>'
-                          +'<tr>'
-                          +'<td>base</td>'
-                          +'<td>public</td>'
-                          +'<td>docklet</td>'
-                          +'<td>A base image for you</td>'
-                          +'<td><div class="i-checks"><label><input type="radio" name="image_' + task_number + '" value="base_base_base" checked="checked"></label></div></td>'
-                          +'</tr>'
-                          +'{% for image in images['private'] %}'
-                          +'<tr>'
-                          +'<td>{{image['name']}}</td>'
-                          +'<td>private</td>'
-                          +'<td>{{user}}</td>'
-                          +'<td><a href="/image/{{masterips[0].split("@")[1]}}/description/{{image['name']}}_{{user}}_private/" target="_blank">{{image['description']}}</a></td>'
-                          +'<td><div class="i-checks"><label><input type="radio" name="image_' + task_number + '" value="{{image['name']}}_{{user}}_private"></label></div></td>'
-                          +'</tr>'
-                          +'{% endfor %}'
-                          +'{% for p_user,p_images in images['public'].items() %}'
-                              +'{% for image in p_images %}'
-                              +'<tr>'
-                              +'<td>{{image['name']}}</td>'
-                              +'<td>public</td>'
-                              +'<td>{{p_user}}</td>'
-                              +'<td><a href="/image/{{masterips[0].split("@")[1]}}/description/{{image['name']}}_{{p_user}}_public/" target="_blank">{{image['description']}}</a></td>'
-                              +'<td><div class="i-checks"><label><input type="radio" name="image_' + task_number + '" value="{{image['name']}}_{{p_user}}_public"></label></div></td>'
-                              +'</tr>'
-                          +'{% endfor %}'
-                          +'{% endfor %}'
-                          +'</tbody>'
-                          +'</table>'
-                      +'</div>'
-                  +'</div>'
-             +'<div class="form-group">'
-             +'<span>'
-             +'<label class="col-sm-2 contril-label">Exteranl Storage Mapping</label>'
-             +'<table class="table table-bordered" id="storage_mapping_' + task_number + '" style="display:inline;">'
-             +'<thead>'
-             +'<tr><td><button type="button" id="' + task_number + '" class="btn btn-primary btn-xs" title="add an external storage mapping" onclick="addMapping(this)">'
-             +'<i class="fa fa-plus"></i></button></td></tr>'
-             +'<tr><th style="width:217px">Local Dir</th><th style="width:217px">Remote Dir</th><th style="width:217px">source</th><th style="width:217px">Operation</th></tr>'
-             +'</thead>'
-             +'<tbody>'
-             +'</tbody>'
-             +'</table>'
-             +'</span></div><div class="box-tools pull-right"><button type="button" id="' + task_number + '" onclick="unfoldTask(this)" class="btn btn-primary">Confirm</button></div>'
-             +'</div></div></div>'
-        $(task_html).appendTo("#accordion");
-    });
+    function addTask() {
+      task_number += 1;
+      mapping_number = 0;
+      var task_html = '';
+      task_html +=
+            '<div class="panel panel-default" id="task_pannel_' + task_number + '">'
+           +'<div class="panel-heading">'
+           +'<h4 class="panel-title">'
+           +'<a data-toggle="collapse" data-panel="#accordion" href="#collapse' + task_number + '">'
+           +'Task #' + task_number
+           +'</a><div class="box-tools pull-right"><button type="button" id="' + task_number + '" onclick="removeTask(this)" class="btn btn-box-tool"><i class="fa fa-times"></i></button></div>'
+           +'</h4></div>'
+           +'<div id="collapse' + task_number + '" class="panel-collapse collapse in">'
+           +'<div class="panel-body">'
+           +'<div class="form-group">'
+           +'<label class="col-sm-2 control-label">CPU</label>'
+           +'<div class="col-sm-3"><input type="number" class="form-control" name="cpuSetting_' + task_number + '" id="cpuSetting_' + task_number + '" value = 1  min="1" max="8" required/>'
+           +'</div>'
+           +'<label class="col-sm-2 control-label">Memory</label>'
+           +'<div class="col-sm-3"><input type="number" class="form-control" name="memorySetting_' + task_number + '" id="memorySetting_' + task_number + '" value = 1024  min="100" max="8196" required/>'
+           +'</div>MB</div>'
+           +'<div class="form-group">'
+           +'<label class="col-sm-2 control-label">GPU</label>'
+           +'<div class="col-sm-3"><input type="number" class="form-control" name="gpuSetting_' + task_number + '" id="gpuSetting_' + task_number + '" value= 0  min="0" max="2" required/>'
+           +'</div>'
+           +'<label class="col-sm-2 control-label">Disk</label>'
+           +'<div class="col-sm-3"><input type="number" class="form-control" name="diskSetting_' + task_number + '"  id="diskSetting_' + task_number + '" value= 1024 min="128" max="10000" required/>'
+           +'</div>MB</div>'
+           +'<div class="form-group">'
+           +'<label class="col-sm-2 control-label">VNode Count</label>'
+           +'<div class="col-sm-3"><input type="number" class="form-control" name="vnodeCount_' + task_number + '" id="vnodeCount_' + task_number + '" value= 1  min="1" max="14" required/>'
+           +'</div>'
+           +'<label class="col-sm-2 control-label">Max Retry Count</label>'
+           +'<div class="col-sm-3"><input type="number" class="form-control" name="retryCount_' + task_number + '" id="retryCount_' + task_number + '" value= 1  min="0" max="5" required/>'
+           +'</div></div>'
+           +'<div class="form-group">'
+           +'<label class="col-sm-2 control-label">Source Code Address</label>'
+           +'<div class="col-sm-3"><input type="text" class="form-control" name="srcAddr_' + task_number + '" id="srcAddr_' + task_number + '" value="/root" required/>'
+           +'</div>'
+           +'<label class="col-sm-2 control-label">Expire Time</label>'
+           +'<div class="col-sm-3"><input type="number" class="form-control" name="expTime_' + task_number + '" id="expTime_' + task_number + '" value= 60  min="10" max="86400" required/>'
+           +'</div>Seconds</div>'
+           +'<div class="form-group">'
+           +'<label class="col-sm-2 control-label">Stderr Redirect Path</label>'
+           +'<div class="col-sm-3"><input type="text" class="form-control" placeholder="/path/to/file or /path/" name="stdErrRedPth_' + task_number + '" id="stdErrRedPth_' + task_number + '" value="/root/nfs/batch_{jobid}/"  required/>'
+           +'</div>'
+           +'<label class="col-sm-2 control-label">Stdout Redirect Path</label>'
+           +'<div class="col-sm-3"><input type="text" class="form-control" placeholder="/path/to/file or /path/" name="stdOutRedPth_' + task_number + '" id="stdOutRedPth_' + task_number + '" value="/root/nfs/batch_{jobid}/" required/>'
+           +'</div></div>'
+           +'<div class="form-group">'
+           +'<label class="col-sm-2 control-label">Dependency&nbsp<i class="fa fa-question-circle" title="The tasks ids that this task depends on, seperate them with commas, eg: 1, 2"></i></label>'
+           +'<div class="col-sm-3"><input type="text" class="form-control" name="dependency_' + task_number + '" id="dependency_' + task_number + '"  />'
+           +'</div>'
+           +'<label class="col-sm-2 control-label">Command</label>'
+           +'<div class="col-sm-3"><input type="text" class="form-control" name="command_' + task_number + '" id="command_' + task_number + '"  required/>'
+           +'</div></div>'
+           +'<div class="form-group">'
+           +'<label class="col-sm-2 control-label">Run on: </label>'
+           +'<div class="col-sm-3"><input type="radio" name="runon_' + task_number + '" value="all"  checked="checked"/>All vnodes &nbsp'
+           +' <input type="radio" name="runon_' + task_number + '" value="master"  />One vnode(master)</div>'
+           +'<label class="col-sm-2 control-label">Start at the Same Time</label>'
+           +'<div class="col-sm-3"><input type="checkbox" name="atSameTime_' + task_number + '" checked="checked"/>'
+           +'</div></div>'
+                +'<div class="form-group"><label class="col-sm-2 control-label">Image Choose</label>'
+                    +'<div class="col-sm-10">'
+                        +'<table id="imagetable" class="table table-striped table-bordered table-hover table-image" >'
+                        +'<thead>'
+                        +'<tr>'
+                        +'<th>ImageName</th>'
+                        +'<th>Type</th>'
+                        +'<th>Owner</th>'
+                        +'<th>Description</th>'
+                        +'<th>Choose</th>'
+                        +'</tr>'
+                        +'</thead>'
+                        +'<tbody>'
+                        +'<tr>'
+                        +'<td>base</td>'
+                        +'<td>public</td>'
+                        +'<td>docklet</td>'
+                        +'<td>A base image for you</td>'
+                        +'<td><div class="i-checks"><label><input type="radio" name="image_' + task_number + '" value="base_base_base" checked="checked"></label></div></td>'
+                        +'</tr>'
+                        +'{% for image in images['private'] %}'
+                        +'<tr>'
+                        +'<td>{{image['name']}}</td>'
+                        +'<td>private</td>'
+                        +'<td>{{user}}</td>'
+                        +'<td><a href="/image/{{masterips[0].split("@")[1]}}/description/{{image['name']}}_{{user}}_private/" target="_blank">{{image['description']}}</a></td>'
+                        +'<td><div class="i-checks"><label><input type="radio" name="image_' + task_number + '" value="{{image['name']}}_{{user}}_private"></label></div></td>'
+                        +'</tr>'
+                        +'{% endfor %}'
+                        +'{% for p_user,p_images in images['public'].items() %}'
+                            +'{% for image in p_images %}'
+                            +'<tr>'
+                            +'<td>{{image['name']}}</td>'
+                            +'<td>public</td>'
+                            +'<td>{{p_user}}</td>'
+                            +'<td><a href="/image/{{masterips[0].split("@")[1]}}/description/{{image['name']}}_{{p_user}}_public/" target="_blank">{{image['description']}}</a></td>'
+                            +'<td><div class="i-checks"><label><input type="radio" name="image_' + task_number + '" value="{{image['name']}}_{{p_user}}_public"></label></div></td>'
+                            +'</tr>'
+                        +'{% endfor %}'
+                        +'{% endfor %}'
+                        +'</tbody>'
+                        +'</table>'
+                    +'</div>'
+                +'</div>'
+           +'<div class="form-group">'
+           +'<span>'
+           +'<label class="col-sm-2 contril-label">Exteranl Storage Mapping</label>'
+           +'<table class="table table-bordered" id="storage_mapping_' + task_number + '" style="display:inline;">'
+           +'<thead>'
+           +'<tr><td><button type="button" id="' + task_number + '" class="btn btn-primary btn-xs" title="add an external storage mapping" onclick="addMapping(this)">'
+           +'<i class="fa fa-plus"></i></button></td></tr>'
+           +'<tr><th style="width:217px">Local Dir</th><th style="width:217px">Remote Dir</th><th style="width:217px">source</th><th style="width:217px">Operation</th></tr>'
+           +'</thead>'
+           +'<tbody>'
+           +'</tbody>'
+           +'</table>'
+           +'</span></div><div class="box-tools pull-right"><button type="button" id="' + task_number + '" onclick="unfoldTask(this)" class="btn btn-primary">Confirm</button></div>'
+           +'</div></div></div>'
+      $(task_html).appendTo("#accordion");
+    }
+    addTask();
+    $("#add_task").click(addTask);
     </script>
 {% endblock %}