Column or Footer click events

Is there a click event (left/right/dbl) on the footer or Column, or a way to create a custom event. I have an application that displays statistical reports and for each cell, the application will request a new report when the cell is dblclicked that displays the detail records used to calculate the value. My user wants to be able to do the same thing for a cell in the footer. Us this possible?

You can use following code to create custom event on footer double click:

dhtmlxEvent(,"dblclick",function(){ //any custom code here })

So how do I know which cell within the footer had the dblclick event?