$tabsysprefs{opaclayoutstylesheet} = "OPAC";
$tabsysprefs{OpacNav} = "OPAC";
$tabsysprefs{opacsmallimage} = "OPAC";
-$tabsysprefs{opacstylesheet} = "OPAC";
$tabsysprefs{opacthemes} = "OPAC";
$tabsysprefs{opacuserjs} = "OPAC";
$tabsysprefs{opacheader} = "OPAC";