Navigates to the navigable item with the next lower sequence number than the current item. If there is no such item, PREVIOUS_ITEM navigates to the navigable item with the highest sequence number. If there is no such item, PREVIOUS_ITEM navigates to the current item.
The function of PREVIOUS_ITEM from the first navigable item in the block depends on the setting of the Navigation Style block property. The valid settings for Navigation Style include:
PROCEDURE PREVIOUS_ITEM;
Built-in Type restricted procedure
Enter Query Mode yes
none
/*
** Built-in: PREVIOUS_ITEM
** Example: See PREVIOUS_BLOCK
*/