find the tab index of the next cell and give focus to it when pressing arrow keys

find the tab index of the next cell and give focus to it when pressing arrow keys

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I am using VS 2005, ASP.NET,C#.NET AND JQUERY. I have gridview in update panel. I have tab index of one cell $(this).attr('tabIndex') I have to move the focus to the next editable cell . how to find the tab index of the next cell and give focus to it when pressing arrow keys

thanks in advance george n t