private String removeSpanSort(String content) {
	String buf = "";
	int idx = 0;
	int aStart = 0;
	int aEnd = -7;
	while (content.indexOf("<span class=\"smwsortkey\">", idx) != -1) {
	    aStart = content.indexOf("<span class=\"smwsortkey\">", idx);
	    buf += content.substring(aEnd+7, aStart);
	    aEnd = content.indexOf("</span>", aStart);
	    idx = aEnd;
	}
	buf += content.substring(aEnd+7);
	return buf;
    }