private static String getLogo(String id) {
	Pattern patternDrug = Pattern.compile("^\\w\\d\\d\\w\\w\\d\\d$");
	Matcher matcherDrug = patternDrug.matcher(id);
	Pattern patternDrugBank = Pattern.compile("^DB\\d.*");
	Matcher matcherDrugBank = patternDrugBank.matcher(id);
	if (matcherDrug.find()){
	    return "drug";
	}else if(matcherDrugBank.find()){
	    return "drug-bank";
	}else{
	    return "dot";
	}
    }