Percent values must not be more than 100 on scale

snippets/graph.html

@@ -161,6 +161,7 @@ function drawGraph(deveui, alias, property, start, stop, create_graph) {
 
   var label;
   var labels = {};
+  var forceNiceScale = true;
   $(".button").removeClass("is-success");
   if (property=="t") {
     $("#btn_t").addClass("is-success");
@@ -174,6 +175,7 @@ function drawGraph(deveui, alias, property, start, stop, create_graph) {
     mysubtitle = 'Akkuladung in Prozent';
     minfunc = function(min) { return 0 }
     maxfunc = function(max) { return 100 }
+    forceNiceScale = false;
   } else if (property=="w") {
     $("#btn_w").addClass("is-success");
     label = 'Gewicht';
@@ -191,6 +193,7 @@ function drawGraph(deveui, alias, property, start, stop, create_graph) {
     mysubtitle = 'Luftfeuchtigkeit in Prozent';
     minfunc = function(min) { return 0 } 
     maxfunc = function(max) { return 100 }
+    forceNiceScale = false;
   } else if (property=="p") {
     $("#btn_p").addClass("is-success");
     label = 'Luftdruck';
@@ -238,7 +241,7 @@ function drawGraph(deveui, alias, property, start, stop, create_graph) {
       yaxis: {
         min: minfunc,
         max: maxfunc,
-        forceNiceScale: true,
+        forceNiceScale: forceNiceScale,
         labels: labels 
       },
       tooltip: {