Chaging the color of grid rows

[kpmg2007]

Hi

I am new to YUI-ext, Is there a way to change the color of the grid rows displayed based on some criteria? for eg. I have to 50 rows to display which is coming from database out of which first 25 will be in blue color and next 25 will be in yellow color

Any help in this regard greatly appreciated

thanks in advance

kpmg

[evant]

http://extjs.com/deploy/ext/docs/output/Ext.grid.GridView.html#getRowClass