Textbox working issue to lessen the time in typing

[newphpcoder]

Good day!

I have a question regarding textbox properties. In my textbox username I want to happen is when I input a letter for example is "l" all the letter started in "l" in my field username was appear, so that the user can choose what she want to type to lessen the time in typing like in the google search. Is it possible?How can I do that?

Thank you in advance

[drhowarddrfine]

Neither html or css can do this. You must use javascript.