Consecutive runs in mathematica

From: Tony King (mathstutoring_at_ntlworld.com)
Date: 03/09/05 

Date: Wed, 09 Mar 2005 11:42:05 GMT

I have a list which looks something like

{true,true,false,true,true,true,false,true.........}

that contains something like a million terms, and I would like some code to
return the maximum length of consecutive runs of trues and the maximum
length of consecutive runs of false.

Any ideas / assistance would be greatly appreciated.

Best wishes

Tony