Can't get Google Visualization API to work. It throws an error
===

Here's my code and the error I get:

    var data = new google.visualization.DataTable();
    data.addColumn('date', 'Date');
    data.addColumn('number', 'Views');
    data.addColumn('number', 'Winks');
    data.addRows([
    				  [new Date('2012-25-07'), 1, null],
    				  [new Date('2012-23-07'), 1, null],
    				  [new Date('2012-21-07'), 1, null],
    				  [new Date('2012-19-07'), 1, null],
    				  [new Date('2012-18-07'), 1, null],
    				  [new Date('2012-17-07'), 1, null],
    				  [new Date('2012-16-07'), 1, null],
    				  [new Date('2012-15-07'), 1, null],
    				  [new Date('2012-14-07'), 1, null],
    				]);
    
    var formatter_short = new google.visualization.DateFormat({formatType: 'short'});
    formatter_short.format(data, 0);
    
    var chart = new google.visualization.AreaChart(document.getElementById('chart_div'));
    chart.draw(data);

> Error: Problem parsing
> d="Mnull,162.5Lnull,101Lnull,101Lnull,101Lnull,101Lnull,101Lnull,101Lnull,101Lnull,101Lnull,101"