How to prevent sorting when clicking on filter boxes in head

Hi
I have attached filter controls to a second header row with mygrid.attachHeader.
When these filter controls are clicked, they trigger a sort on that column.
How do I prevent that behaviour, but still allow sorting by clicking on the top row of the header?

Rgds

You need to stop event propaganation

document.getElementId(‘ss’).onclick=function(e){ (e|event).cancelBubble=true; return false; }

Oncoming version will have code to fix such problem automatically.