Change default 960px to new width

[Chaithanya-Bangaru]

Hi Mark, I'm trying into increase the fixed table width from 960px to more, say 1135px (this width is appropriate in my web app), so the end user does not have to use horizontal scroll much frequently,

but am failing even though I tried to change in css and js etc...Do you think its possible with this fixed header table plugin ? Thanks in advance...