|name1, name2, name3 …..
This tag will undefine the specified variables and remove them from the appropriate memory heap. This is useful when using the iPOPFETCH command that creates a number of variables on the heap. The more variables on the heap, the slower iHTML processes. In general, the user would not have to employ this tag since the local heap gets destroyed between pages. NAME1, NAME2, etc… are the names of the variables to undefine without the colon in front.