diff --git a/crontab.js b/crontab.js
index 3c41f89..1b39b94 100644
--- a/crontab.js
+++ b/crontab.js
@@ -65,11 +65,17 @@ exports.set_crontab = function(env_vars, callback){
 		tabs.forEach(function(tab){
 			if(!tab.stopped) {
 				if (tab.logging && tab.logging == "true") {
-					tmp_log = "/tmp/" + tab._id + ".log";
-					log_file = exports.log_folder + "/" + tab._id + ".log";
+					let tmp_log = "/tmp/" + tab._id + ".log";
+					let log_file = exports.log_folder + "/" + tab._id + ".log";
 					if(tab.command[tab.command.length-1] != ";") // add semicolon
 						tab.command +=";";
-					crontab_string += tab.schedule + " { " + tab.command + " } 2> " + tmp_log +"; if test -f " + tmp_log +"; then date >> " + log_file + "; cat " + tmp_log + " >> " + log_file + "; rm " + tmp_log + "; fi \n";
+					// hook is in beta
+					if (tab.hook){
+						let tmp_hook = "/tmp/" + tab._id + ".hook";
+						crontab_string += tab.schedule + " ({ " + tab.command + " } | tee " + tmp_hook + ") 3>&1 1>&2 2>&3 | tee " + tmp_log +"; if test -f " + tmp_log +"; then date >> " + log_file + "; cat " + tmp_log + " >> " + log_file + "; rm " + tmp_log + "; fi; if test -f " + tmp_hook + "; then " + tab.hook + " < " + tmp_hook + "; rm " + tmp_hook + "; fi \n";
+					} else {
+						crontab_string += tab.schedule + " { " + tab.command + " } 2> " + tmp_log +"; if test -f " + tmp_log +"; then date >> " + log_file + "; cat " + tmp_log + " >> " + log_file + "; rm " + tmp_log + "; fi \n";
+					}
 				}
 				else {
 					crontab_string += tab.schedule + " " + tab.command + "\n";
@@ -96,7 +102,7 @@ exports.get_backup_names = function(){
 	var backups = [];
 	fs.readdirSync(__dirname + '/crontabs').forEach(function(file){
 		// file name begins with backup
-		if(file.indexOf("backup") == 0){
+		if(file.indexOf("backup") === 0){
 			backups.push(file);
 		}
 	});
@@ -150,7 +156,10 @@ exports.import_crontab = function(){
 			var command = line.replace(regex, '').trim();
 			var schedule = line.replace(command, '').trim();
 
-			if(command && schedule){
+			var is_valid = false;
+			try { is_valid = cron_parser.parseString(line).expressions.length > 0; } catch (e){}
+
+			if(command && schedule && is_valid){
 				var name = namePrefix + '_' + index;
 
 				db.findOne({ command: command, schedule: schedule }, function(err, doc) {
diff --git a/package.json b/package.json
index 47a168c..ebaad85 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "crontab-ui",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "Easy and safe way to manage your crontab file",
   "main": "index.js",
   "scripts": {
diff --git a/public/js/script.js b/public/js/script.js
index 95c69b1..66b1f7a 100644
--- a/public/js/script.js
+++ b/public/js/script.js
@@ -26,6 +26,9 @@ function messageBox(body, title, ok_text, close_text, callback){
 
 
 /*********** crontab actions ****************/
+// TODO get rid of global variables
+var schedule = "";
+var job_command = "";
 
 function deleteJob(_id){
 	// TODO fix this. pass callback properly
@@ -84,7 +87,7 @@ function editJob(_id){
 		$("#job-name").val(job.name);
 		$("#job-command").val(job.command);
 		// if macro not used
-		if(job.schedule.indexOf("@") != 0){
+		if(job.schedule.indexOf("@") !== 0){
 			var components = job.schedule.split(" ");
 			$("#job-minute").val(components[0]);
 			$("#job-hour").val(components[1]);
@@ -102,6 +105,9 @@ function editJob(_id){
 	$("#job-save").unbind("click"); // remove existing events attached to this
 	$("#job-save").click(function(){
 		// TODO good old boring validations
+		if (!schedule) {
+			schedule = "* * * * *";
+		}
 		$.post(routes.save, {name: $("#job-name").val(), command: job_command , schedule: schedule, _id: _id, logging: $("#job-logging").prop("checked")}, function(){
 			location.reload();
 		});
@@ -124,6 +130,9 @@ function newJob(){
 	$("#job-save").unbind("click"); // remove existing events attached to this
 	$("#job-save").click(function(){
 		// TODO good old boring validations
+		if (!schedule) {
+			schedule = "* * * * *";
+		}
 		$.post(routes.save, {name: $("#job-name").val(), command: job_command , schedule: schedule, _id: -1, logging: $("#job-logging").prop("checked")}, function(){
 			location.reload();
 		});
@@ -162,8 +171,6 @@ function import_db(){
 
 
 // script corresponding to job popup management
-var schedule = "";
-var job_command = "";
 function job_string(){
 	$("#job-string").val(schedule + " " + job_command);
 	return schedule + " " + job_command;
diff --git a/views/popup.ejs b/views/popup.ejs
index 931f979..f9bb15e 100644
--- a/views/popup.ejs
+++ b/views/popup.ejs
@@ -72,7 +72,8 @@
 	<br />
 	<label>Job</label>
 	<input type='text' class='form-control' id='job-string' disabled='disabled'/><br />
-	<label><input type="checkbox" id="job-logging" style="position:relative;top:2px"/> Enable error logging.</label>
+	<label><input type="checkbox" id="job-logging" style="position:relative;top:2px"/> Enable error logging.</label><br />
+	<!-- <label><input type="checkbox" id="job-mail_toggle" style="position:relative;top:2px"/> Enable email.</label> -->
       </div>
       <div class="modal-footer">
         <button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>