javascript - How to remove input suggestions in HTML -

i want remove input suggestions in html. the solution can javascript! not know syntax. more comprehension of problem, take in following image:

i've searched question , found autocomplete="off", think not enough yet, because problem wasn't resolved.

the code:

<input name="productquantity" maxlength="2" type="text" autocomplete="off" /> 

the common trick remove put random "name" of field example "firstname-randomstringhere" , substract random string in php.

you should include in question have tried way.

this random string may generated once , stored in $_session.