Electronic – Footprints for SMD electrolytic capacitors


Does Altium Designer Summer 09 has footprints for SMD electrolytic capacitors? If so, where can I find them?

SMD electrolytic cap

I've noticed the dimensions of these type of capacitors are given in diameter x height. How can I find out the dimensions of the pads, provided I don't have the datasheets for the capacitors?

Is there a standard for the SMD electrolytic capacitors' footprints?