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Highcharts plotlines label events

In te very simple way, you can set useHTML as true on the label. Then use jquery to catch element and add action like show/hide tooltip. See simple example.

$('.plabel').mouseover(function(){
            displayTooltip('txt', 10);                                
        });

        $('.plabel').mouseout(function(){
            hideTooltip();
        });

http://jsfiddle.net/xL7us/4/





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