When applying Scrollable Gridview the headers does not match with TemplateField

Sir,

    I used the link below

http://www.aspsnippets.com/Articles/Scrollable-GridView-with-Fixed-Headers-using-jQuery-Plugin.aspx

I have nearly 25 columns in my Gridview so when i apply the scrollable grdview the header does not align with template field.

Thanks in advance