Required library edition: 
Required library file: dhtmlxgrid_pgn.js
enable smart paging mode
mode - true|false - enable|disable mode
pageSize - count of rows per page
pagesInGrp - count of visible page selectors
pagingControlsContainer - ID or container which will be used for showing paging controls
showRecInfo - true|false - enable|disable showing of additional info about paging state
pagingStateContainer - ID or container which will be used for showing paging state
//enable paging with 10 rows per page
mygrid.enablePaging(true,10,5,"pagingArea",true,"recinfoArea");
Note this method is incompatible with enableSmartRendering and enableDistributedParsing methods
See also: setPagingSkin, setPagingTemplates, setPagingWTMode, getStateOfView