DropDown Combo in HTML?

Is there any ComboBox in HTML?

<SELECT><OPTION> is ListBox - user can only choose from predefined values. But in Combo, he can write his own value...

Thanks,
John

You can make the combobox pull data from a db table or from a text file...then have a textbox on the same page as the combobox so users can enter a new value and have that value stored in the table or text file...then refresh the page and the new value will appear in the combobox.