function _getPrevPageLink(htData){
        var sLinkText = Messages("button.prevPage") || 'PREV';
        var sLinkHTMLOn = '<i class="ico btn-pg-prev"></i><span>' + sLinkText + '</span>';
        var sLinkHTMLOff = '<i class="ico btn-pg-prev off"></i><span class="off">' + sLinkText + '</span>';

        var htOptions = $.extend(htData, {
            "bActive"  : htData.hasPrev,
            "sLinkHref": htData.hasPrev ? urlWithPageNum(htData.url, htData.current - 1, htData.paramNameForPage) : "",
            "sLinkHTMLOn"   : sLinkHTMLOn,
            "sLinkHTMLOff"  : sLinkHTMLOff,
            "sShortcutKey"  : "LEFT",
            "nSubmitPageNum": htData.current - 1
        });

        var welPagePrev = _buildPageLink(htOptions);

        return welPagePrev;
    }
Get previous page link

@param htData
@returns {Wrapped Element}
@private