http://www.highcharts.com/stock/demo/flags-general
http://www.codesec.net/view/217265.html
http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/series/color-zones-dashstyle-dot/
http://stackoverflow.com/questions/15300330/highcharts-line-graph-with-half-solid-line-and-half-dotted-line
http://jsfiddle.net/mkremer90/zMZEV/1/