关键词高亮显示

/**
             * 关键词高亮显示
             */
            if (typeof(zhishi_tags) != "undefined") {
                var maincontent = $("#maincontent").html();
                $.each(zhishi_tags, function (i, item) {
                    var re = new RegExp(item.Name, "im");
                    maincontent = maincontent.replace(re, "<object><a style='color: blue;' href='" + item.link + "' target='_blank'>" + item.Name + "</a></object>");
                });
                $("#maincontent").html(maincontent);
            }