Getting rid of the row markers

I would like to get rid of the row markers (i.e 1, 2, 3, ..). is this possible?

To get rid of the numbers use:

obj.setRowText("");

To remove the row headers column completely:

obj.setRowHeaderWidth("0px");

Great! Thanks Alex.

how do i remove the 3D look of the row markers? ie. i want the row markers to look like normal cells..