OpenERP 7 how to add title in X-axis and Y-axis in the Particular Module Graph view?...

To add title  in the \addons\web_graph\static\lib\flotr2\js\DefaultOptions.js  File options avaiable to add title in x-axis and y-axis.

Flotr.defaultOptions = {
   xaxis: {
    ticks: null,           // => format: either [1, 3] or [[1, 'a'], 3]
    minorTicks: null,      // => format: either [1, 3] or [[1, 'a'], 3]
    showLabels: true,      // => setting to true will show the axis ticks labels, hide otherwise
    showMinorLabels: false,// => true to show the axis minor ticks labels, false to hide
    labelsAngle: 0,        // => labels' angle, in degrees
    title: null,           // => axis title
    titleAngle: 0,         // => axis title's angle, in degrees
  },
  x2axis: {},
  yaxis: {
   title: null,           // => axis title
    titleAngle: 90,        // => axis title's angle, in degrees   
  },
  y2axis: {
    titleAngle: 270
  },
};

But the title shows in all the graph. How to add the title in Particular Graph?...  In java script which methods to override and shows title in particular Graph ?..