Splitter and DOUBLE-CLICK event

I ahev a splitter that displays two ALV grids. With event DOUBLE_CLICK I want to be able to detrmine which grid caused the double_click as I wanted to use one method with conditional logic so some of code could be generic. How would I do this or is it simply better to have two methods double_lclick for grid1 & double_click for grid2 and set handler for each event ?