Highcharts categories tooltips

HTML

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JavaScript

var distroDates = [
{
    name: 'exDate',
    data: [
        '06/25/2013',
        '12/17/2012',
        '06/20/2012',
        '12/19/2011',
        '06/21/2011',
        '12/20/2010',
        '06/21/2010',
        '12/21/2009',
        '06/22/2009',
        '12/22/2008',
        '06/23/2008',
        '12/24/2007',
        '12/21/2006',
        '12/23/2005',
        '12/23/2004',
        '12/22/2003',
        '12/23/2002'
    ]
},
{
    name: 'Record Date',
    data: [
        '06/27/2013',
        '12/19/2012',
        '06/22/2012',
        '12/21/2011',
        '06/23/2011',
        '12/22/2010',
        '06/23/2010',
        '12/23/2009',
        '06/24/2009',
        '12/24/2008',
        '06/25/2008',
        '12/27/2007',
        '12/26/2006',
        '12/28/2005',
        '12/28/2004',
        '12/24/2003',
        '12/26/2002'
    ]
},
{
    name: 'Payable Date',
    data: [
        '07/02/2013',
        '12/24/2012',
        '06/27/2012',
        '12/29/2011',
        '06/27/2011',
        '12/30/2010',
        '06/25/2010',
        '12/31/2009',
        '06/26/2009',
        '12/31/2008',
        '06/27/2008',
        '01/04/2008',
        '12/28/2006',
        '12/30/2005',
        '12/30/2004',
        '01/02/2004',
        '01/02/2003'
    ]
}
]
var distroData = [
{
    name: 'Income',
    data: [
        0.3908,
        0.4948,
        0.2311,
        0.3342,
        0.245,
        0.2213,
        0.19,
        0.1404,
        0.2014,
        0.2266,
        0.2131,
        0.2328,
        0.1288,
        0.0044,
        0.6248,
        0,
        0
    ]
},
{
    name: 'S.T. Capital Gains',
    data: [
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0
    ]
},
{
    name: 'L.T. Capital Gains',
    data: [
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
...