Thank you, I was going with a more complicated solution that used too much cpu, yours seems to work great.
Thank you, the workaround seems to work, only drawback is that the bar only gets highlighted when the mouse is over the day 15 of each month and not for the rest of the bar that dataPointWidth expanded. I added highlightEnabled: false so it wont highlight at all. I guess using mouseover and mouseout it could be done so it highlight the bar when any day of that month is highlighted on the other lines, but not too worried about that right now, may look into it later. Thanks again.