onPageChanged

fires after the active page of the grid has been changed (paging extension)

void onPageChanged(number ind,number fInd,number lInd);

ind	number	the index of the current page
fInd	number	the index of the first row of the page
lInd	number	the index of the last row of the page

Available only in PRO Edition

grid.attachEvent("onPageChanged", function(ind,fInd,lInd){
    // your code here
});