public static String[] search(String[][] clientArray, String queryString) {
	        	for(String[] client: clientArray) {
	        			if(client[1].toLowerCase().indexOf(queryString.toLowerCase())!=-1 ||
	        			   client[2].toLowerCase().indexOf(queryString.toLowerCase())!=-1) {
	        				return client;
	        			}
	        	}
	        	return null;
	        }