[SQLite]Web SQL error handling

db.transaction(tx) {
    doQuery(tx, "SELECT * FROM TABLE",[],theSuccessHandler)
});

function doQuery(tx, query, values, successHandler) {
    tx.executeSql(query, values, successHandler, errorHandler);
    function errorHandler(transaction, error) {
        alert("Error : " + error.message + " in " + query);
    }
}

http://hangaebal.blogspot.kr/2014/06/web-sql-error-handling.html

http://stackoverflow.com/questions/16559832/how-to-get-the-context-of-a-web-sql-error