Can jqgrid sends totalrows after the first pulling data?

[hyfbeetle]

I want to use it on the next page action.
Simple modify, Added "if (pN.totalrows !== null) { prm[pN.totalrows] = p.records; }", is it any problem? thanks very much!

			populate = function (npage) {
				var self = this, $self = $(self), gridSelf = self.grid;
				if (!gridSelf.hDiv.loading) {
					var pvis = p.scroll && npage === false, prm = {}, dt, dstr, pN = p.prmNames;
					if (p.page <= 0) { p.page = Math.min(1, p.lastpage); }
					if (pN.search !== null) { prm[pN.search] = p.search; }
					if (pN.nd !== null) { prm[pN.nd] = new Date().getTime(); }
					if (isNaN(parseInt(p.rowNum, 10)) || parseInt(p.rowNum, 10) <= 0) { p.rowNum = p.maxRowNum; }
					if (pN.rows !== null) { prm[pN.rows] = p.rowNum; }
					if (pN.page !== null) { prm[pN.page] = p.page; }
					if (pN.sort !== null) { prm[pN.sort] = p.sortname; }
					if (pN.order !== null) { prm[pN.order] = p.sortorder; }
					if (p.rowTotal !== null && pN.totalrows !== null) { prm[pN.totalrows] = p.rowTotal; }
					if (pN.totalrows !== null) { prm[pN.totalrows] = p.records; }
					var lcf = isFunction(p.loadComplete), lc = lcf ? p.loadComplete : null;
					var adjust = 0;
					npage = npage || 1;
					if (npage > 1) {