diff --git a/backend/lib/Interpreter/MeterInterpreter.php b/backend/lib/Interpreter/MeterInterpreter.php
index 735b478..c822b85 100644
--- a/backend/lib/Interpreter/MeterInterpreter.php
+++ b/backend/lib/Interpreter/MeterInterpreter.php
@@ -31,6 +31,7 @@ namespace Volkszaehler\Interpreter;
  *
  */
 use Volkszaehler;
+use Volkszaehler\Util;
 
 class MeterInterpreter extends Interpreter {
 
@@ -130,11 +131,12 @@ class MeterInterpreter extends Interpreter {
 		$delta = $next[0] - $last[0];
 
 		return array(
-			(int) ($next[0] - $delta / 2),												// timestamp
+			//(int) ($next[0] - $delta / 2),												// timestamp
+			(float) ($next[0] - $delta / 2),												// timestamp
 			$next[1] * (3600000 / (($this->channel->getProperty('resolution')->getValue() / 1000) * $delta)),	// value
 			(isset($next[2])) ? $next[2] : 1
 		);
 	}
 }
 
-?>
\ No newline at end of file
+?>
diff --git a/backend/lib/View/JSON.php b/backend/lib/View/JSON.php
index 4d34745..1c9946e 100644
--- a/backend/lib/View/JSON.php
+++ b/backend/lib/View/JSON.php
@@ -138,9 +138,11 @@ class JSON extends View {
 
 		foreach ($data as $reading) {
 			$jsonData[] = array(
-				(int) $reading[0],
+				//(int) $reading[0],
+				(float) $reading[0],
 				(float) round($reading[1], View::PRECISSION),
-				(int) $reading[2]
+				//(int) $reading[2]
+				(float) $reading[2]
 			);
 		}
 
@@ -163,4 +165,4 @@ class JSON extends View {
 	public function setPadding($padding) { $this->padding = $padding; }
 }
 
-?>
\ No newline at end of file
+?>
diff --git a/frontend/index.html b/frontend/index.html
index b21806c..bc95eac 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -364,7 +364,8 @@ function getData() {
 	
 	$('#debug').append('<a href="../backend/index.php/data/'+myUUID+'/format/json/from/'+myWindowStart+'/to/'+myWindowEnd+'">json</a>');
 	// load json data with given time window
-	$.getJSON("../backend/index.php/data/" + myUUID + '/format/json/from/'+myWindowStart+'/to/'+myWindowEnd, function(j){
+	//$.getJSON("../backend/index.php/data/" + myUUID + '/format/json/from/'+myWindowStart+'/to/'+myWindowEnd, function(j){
+	$.getJSON("../backend/index.php/data/" + myUUID + '?from='+myWindowStart+'&to='+myWindowEnd, function(j){
 		data = j;
 		$('#debug').empty().append(data.toSource());
 		// then show/reload the chart
@@ -376,18 +377,6 @@ function getData() {
 	return false;
 }
 
-function showInfos() {
-	
-	$('#ChartPlot').hide();
-	$('#ChartInfo').show();
-	
-	$('#ChartInfo').empty();
-	
-	for(var i=0;i<data.channels.length;i++) {
-		$('#ChartInfo').append(data.channels[i]['description']+' (Aufl&ouml;sung:'+data.channels[i]['resolution']+'imp/kWh) Momentanverbrauch: Min: Max:<br>');
-	}
-}
-
 function showChart() {
 	
 	var jqData = new Array();
@@ -421,7 +410,8 @@ function showChart() {
 		// power (moving average) gray line
 		//series_chart.push({showLabel:false,color:'#808080'})
 		
-		jqData.push(json2jqplot(data.channels[i].data));
+		//jqData.push(json2jqplot(data.channels[i].data));
+		jqData.push(data.channels[i].data);
 	}
 	jqOptions.axes = {
 			yaxis:{autoscale:true, min:0, label:"Leistung (Watt)", tickOptions:{formatString:'%.3f'},labelRenderer: $.jqplot.CanvasAxisLabelRenderer},
@@ -454,14 +444,14 @@ function showChart() {
 	});*/
 }
 
-function json2jqplot(raw) {
+/*function json2jqplot(raw) {
 	
 	for(i=0;i<raw.length;i++) {
-		raw[i][0] *= 1000;
-		raw[i][1] /= 1000;
+		//raw[i][0] *= 1;
+		//raw[i][1] /= 1;
 	}
 	return raw;
-}
+}*/
 
 function generateAxisTicks() {
 	
diff --git a/frontend/javascript/smartmeter.js b/frontend/javascript/smartmeter.js
index 333bfbc..2197a17 100644
--- a/frontend/javascript/smartmeter.js
+++ b/frontend/javascript/smartmeter.js
@@ -61,7 +61,7 @@ function calcMyWindowStart() {
 	//var windowInterval = f.window.value.substring(1);
 	var windowInterval = "MONTH"; // we want to display 1 day (for now)
 	
-			myWindowStart.setMonth(myWindowStart.getMonth()-windowSize);
+	myWindowStart.setMonth(myWindowStart.getMonth()-windowSize);
 	return myWindowStart.getTime();
 }