multiselect Method
Purpose:
Tells a Listview control whether to allow the user to select multiple records.
Syntax:
.multiselect = onoff
Comments:
When the user clicks a menu item, this variable is set
with the menu item name
Example:
lis.multiselect = 0 // only allow one selected item at a time
lis.multiselect = 1 // allow multiple selected items
lis.multiselect = -1 // selection is disabled