dataScroller

[Vladimir Coutinho]

I'm trying to render a dataScroller only when the number of rows of the table are greater than rows exibited on a page.
I tried this :  rendered="#{((rowsCount>displayedRowsCountVar) ? true : false)}" , but the dataScroller is not displayed, despite the number of rows.
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<%@ taglib uri="http://myfaces.apache.org/tomahawk" prefix="t"%>
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 <t:dataScroller id="scroll_1"
                    for="">                     fastStep="3"
                    pageCountVar="pageCount"
                    pageIndexVar="pageIndex"
                    rowsCountVar="rowsCount"
                    styleClass="scroller"
                    displayedRowsCountVar="displayedRowsCountVar"
                    firstRowIndexVar="firstRowIndex"
                    lastRowIndexVar="lastRowIndex"
                    pageCountVar="pageCount"
                    paginator="true"
                    paginatorMaxPages="6"
                    paginatorTableClass="paginator"
                    rendered="#{((rowsCount>displayedRowsCountVar) ? true : false)}"                    
                    paginatorActiveColumnStyle="font-weight:bold;">
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