[Solved]-Twitter bootstrap & Highchart: horizontal scroll, responsive-Highcharts

Well, good people, I kinda figured it out myself... for the possible benefit of others; my solution was to set the width of the two first columns fixed (or rather; max-width), and thereby using calc to calculate the size of the third columns with minus the two fixed width divs.

  width: -webkit-calc(98% - 520px);
 width: calc(98% - 520px);

For the Highchart part of the question, much thanks to @Pawel for prompt answer. I haven´t entirely worked it out, as we are currently discussing whether using Highcharts or not is the way to go. If so, I guess I might be back with more questions later.