Element select with defined attribute roll
receives elements option from DBMS
(primary key of table is extracted like value of attribute
value of element option,
and second field - like content of element option)
allows to input word into itself from keyboard,
and at entering word into it, submits request to DBMS to obtain similar (and equal) words.
Entering of each new letter, deleting of letter or changing letter
(if pause, equal time of double-click by mouse, occurred after that)
forces to send new request.
Element has properties
address - domain name or IP-address of DBMS
(by default it's the same address, from which html-document is obtained)
size - quantity of simultaneously displayed records (i.e. lenght of html-элемент)