minor correction samples/lookup_template.html

samples/lookup_template.html

@@ -15,9 +15,7 @@
 <img width="32" height="32" id='model' src='../data/red.png'></img>
 <div id="res"></div>
 <script lang="javascript">
-var task=[];
-
-_task=new lookup_windows.MeanRGBSameSizeTemplate('model',10);
+var _task=new lookup_windows.MeanRGBSameSizeTemplate('model',10);
 console.log(_task.process(Tools.get_imageData_from_imgEltId('input1')));
 
 </script>