diff --git a/index.html b/index.html
index 846e17c..e8d9b83 100644
--- a/index.html
+++ b/index.html
@@ -36,9 +36,9 @@
             if (e.keyCode == 13) {
                 window.location.href = "timer.html?title=" + $("#title").val() + "&work-time=" + $("#work-time").val() + "&rest-time=" + $("#rest-time").val() + "&loop=" + $("#loop").val() + "&note=" + $("#note").val();
             }
-            if (e.keyCode == 38 || e.keyCode == 40 || e.keyCode == 110 || e.keyCode == 69) {
+            /*if (e.keyCode == 38 || e.keyCode == 40 || e.keyCode == 110 || e.keyCode == 69) {
                 return false;
-            }
+            }*/
         }
         document.onkeydown = keydown;
     </script>
@@ -142,16 +142,16 @@
     <script>
         var timecnt, myDate, h, min;
         function sumGet() {
-            timecnt = (parseInt($("#work-time").val()) + parseInt($("#rest-time").val())) * parseInt($("#loop").val());
+            timecnt = (Number($("#work-time").val()) + Number($("#rest-time").val())) * Number($("#loop").val());
             $("#allsum-num").html(timecnt);
             myDate = new Date();
-            h = myDate.getHours() + parseInt(timecnt / 60);
+            h = myDate.getHours() + Number(timecnt / 60);
             min = myDate.getMinutes() + timecnt % 60;
             if (min >= 60) min -= 60, h++;
             while (h >= 24) h -= 24;
-            $("#to-num-h").html(h);
-            if (min >= 10) $("#to-num-min").html(min);
-            else $("#to-num-min").html("0" + min);
+            $("#to-num-h").html(parseInt(h));
+            if (min >= 10) $("#to-num-min").html(parseInt(min));
+            else $("#to-num-min").html("0" + parseInt(min));
         }
         function defaultSet(workTime, restTime, loopFor) {
             $("#work-time").val(workTime);
@@ -163,13 +163,13 @@
         $("#work-time").val(store.get("worktime"));
         $("#rest-time").val(store.get("resttime"));
         $("#loop").val(store.get("looptime"));
-        if ((parseInt($("#work-time").val()) + parseInt($("#rest-time").val())) * parseInt($("#loop").val())) sumGet();
+        if ((Number($("#work-time").val()) + Number($("#rest-time").val())) * Number($("#loop").val())) sumGet();
         if (process.platform == "darwin") {
             $("#win-hider").css("display", "none");
             $("#no-use-space").css("display", "none");
         }
         function allSet() {
-            if ((parseInt($("#work-time").val()) + parseInt($("#rest-time").val())) * parseInt($("#loop").val())) sumGet();
+            if ((Number($("#work-time").val()) + Number($("#rest-time").val())) * Number($("#loop").val())) sumGet();
             else {
                 $("#allsum-num").html("---");
                 $("#to-num-h").html("--");
diff --git a/package.json b/package.json
index dbf5a7d..cec1b8d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wnr",
-  "version": "1.4.0",
+  "version": "1.5.1",
   "description": "It's a timer app with strong expansibility for computers. The name is a abbr of \"Work and Rest\".",
   "main": "main.js",
   "scripts": {
diff --git a/timer.html b/timer.html
index 84ab009..0d44b53 100644
--- a/timer.html
+++ b/timer.html
@@ -92,7 +92,7 @@
         var h = i18n.__('h');
         var min = i18n.__('min');
         var s = i18n.__('s');
-        if (!worktime || !resttime || !loop || worktime == 6000000 || resttime == 6000000) {//use ms for 1s, former edited by mistakes
+        if (!loop || worktime <= 60000 || resttime <= 60000) {//use ms for 1s
             $("#timer").html("<p class='text-center text-muted lead'>" + i18n.__('notenough') + "<br/><a href='index.html' class='work'>" + i18n.__('back') + "</a></p>");
             $("#timer").css("width", "75%");
             isTimerWindow(false);