gistfile1.js

var data = [{
    "color": "#92BA34",
    "data": [[1251331200000, 15.0]]
}, 
{
    "color": "#92BA34",
    "data": [[1251417600000, 20.0]]
},
{
    "color": "#3492BA",
    "data": [[1251504000000, 25.0]]
},
{
    "color": "#3492BA",
    "data": [[1251590400000, 30.0]]
},
{
    "color": "#3492BA",
    "data": [[1251676800000, 35.0]]
},
{
    "color": "#3492BA",
    "data": [[1251763200000, 40.0]]
},
{
    "color": "#92BA34",
    "data": [[1251849600000, 45.0]]
}];
$.plot($('#bargraph'), data, {
    xaxis: { mode: "time", timeformat: "%m/%d" },
    bars: {
        fill: true,
        fillColor: "#92BA34",
        show: true
    }
});