Highcharts Series - want to show/hide all EXCEPT selected series (reversal of default logic)

By default Highcharts allows you to click on a data series set to hide it / unhide it.

A much more useful approach would be to do the reverse logic - ie to show only the selected series and hide/unhide the non-selected.

Looking at the example here ( http://jsfiddle.net/t2MxW/14/ ), it is clear one can 'intercept' the the 'legendItemClick' event, I am just not sure how to implement the require logic

One can replace the below script to obtain 3 data sets.

DESIRED SCENARIO: to be able to click on 'apples' and show/hide 'pears' and 'oranges' for example.

================= PASTE START =======================================

var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container'
    },
    xAxis: {
        categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
    },

    plotOptions: {
        series: {
            events: {
                legendItemClick: function(event) {
                    var visibility = this.visible ? 'visible' : 'hidden';
                    if (!confirm('The series is currently '+ 
                                 visibility +'. Do you want to change that?')) {
                        return false;
                    }
                }
            }
        }
    },

    series:[{name: 'apples',
            data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]},
    {name:'pears',
    data: [19.9, 81.5, 96.4, 119.2, 124.0, 166.0, 155.6, 138.5, 116.4, 144.1, 95.6, 54.4]},

           {name:'oranges',
    data: [119.9, 181.5, 46.4, 219.2, 24.0, 66.0, 255.6, 238.5, 16.4, 44.1, 95.6, 54.4]}
           ]   

});