i was given this script today.
hope people will find it useful.

//toggles bc per object

global proc tglCulling()
{
if(`window -q -ex tcwin`)
{
if(`intField -q -v if1` == 0){ polyOptions -fb -bcv on; intField -e -v 1 if1; }
else{ polyOptions -bc -bcv off; intField -e -v 0 if1; }
}
else
{
window -ret -vis off tcwin; columnLayout; intField -v 0 if1;
}
}tglCulling();