anchor.diff:  <%
   for (int j = 0 ;j <dataSizeList.size();j++){
     StatisticsDataSize current = dataSizeList.get(j);%>
  - [<%=current.getDateMillis()%> ,  <%=current.getDataSize()/byteUnit%> ],
  +[<%=(current.getDateMillis()+UTC_FIX)%> ,  <%=current.getDataSize()/byteUnit%> ],
   <%}%>
   ];
   
  
positive.code: 
                  $("#tooltip").remove();
                  
                  var x = item.datapoint[0];
                  var y = item.datapoint[1];                
                  
                  var d = new Date(x);
  
negative.code: <%@page pageEncoding="UTF-8"%>
  
  <%
  long UTC_FIX = 2*60*60*1000L;
    ArrayList<ArrayList<StatisticsDataSize>> allDataSizeList = (  ArrayList<ArrayList<StatisticsDataSize>> ) request.getAttribute(DashboardServlet.DATA_SIZE_HISTORY_ATTRIBUTE);
    ArrayList<String> allDataSizeNamesList = (  ArrayList<String> ) request.getAttribute(DashboardServlet.DATA_SIZE_HISTORY_NAMES_ATTRIBUTE);
    
  