1. A method for composing a message in an online textbox using a non-Latin script, the method comprising: receiving a selection of a target language for composing the message in the online textbox; loading a hash table and an integer n that are associated with the target language, the hash table comprises a plurality of entries mapping at least one character of a first language to at least one character of the target language, the integer n comprises a maximum number of characters to add to a queue; receiving an input comprising a character of the first language; adding to the queue the received character of the first language by determining a number of characters in the queue, if the number of characters in the queue is more than n, then removing at least one character from the queue in a first-in and first-out manner and adding the received character to the end of the queue; and parsing the queue by using the hash table to map the queue to an entry in the hash table.