The subject invention provides a compound having the formula: H1-X-B-Y-H2 wherein each of H1 and H2 may be the same or different and capable of binding to a receptor which is the same or different; wherein each of X and Y may be present or absent and if present, each may be the same or different spacer moiety; and wherein B is an enzyme cleavable moiety. It allows a web browser give amounts as small as a penny towards content they appreciate. The longitudinal member is moveable with respect to the shaft to drive the fixation element into bone. On indication of user approval, a new customized version of the application software is prepared, to execute the additional software in executing the module in the new generic version, at the existing specific position or at an updated specific position, which depends on the optional receipt of the update. The improved abbreviated dialing feature allows a shorter sequence of digits dialed from any telephone connected to a compliant switch to be replaced by a longer dialed string.