Freeze Row header and first column

Hi all!
I am trying to implement the “Freeze pane” feature in javascript as it is in excel.
I am almost there but am not able to get one last thing.
The row header freezing is achieved first column freezing is also achieved. However, the top left column cell (which is supposed to stay frozed during both horizontal and vertical scroll) is not frozen.

It would be great if any one of you help me out here!
Is there any way i can attach a file here? I cant seem to find it. I would like to share the html file and the .js file that I am using.

Thanks a bunch!
Ree

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