select1

A select element allows the selection of zero or more items from the list.
You can select several, and then deselect them all again, returning to  
zero selected.

A select1 on the other hand allows the selection of just one item.  
Initially none may be selected, but once one has been selected, there is  
no mechanism for deselecting it again, and returning to zero. The only  
thing you can do, is create an item with an empty value, even if the bound  
value is not required.

Is this right?

Steven