return null;
return "";
	public String evalString(VTDNav vn) {	    //if (e.isString())	   //     return e.evalString(vn);		vn.push2();        int size = vn.contextStack2.size;        int a = -1;        try {            a = evalNodeSet(vn);            if (a != -1) {                if (vn.getTokenType(a) == VTDNav.TOKEN_ATTR_NAME) {                    a++;                }                if (vn.getTokenType(a) == VTDNav.TOKEN_STARTING_TAG) {                    a = vn.getText();                }            }        } catch (Exception e) {        }        vn.contextStack2.size = size;        reset(vn);        vn.pop2();        try {            if (a != -1)                return vn.toString(a);        } catch (NavException e) {        }        return null;	}