JavaScript to create a dropdown list and get the selected value

Answer 1

Example

HTML:

<div id="container">   
    <button id="button1">button1</button>
</div> 

JavaScript

var div = document.querySelector("#container"),
    frag = document.createDocumentFragment(),
    select = document.createElement("select");

select.options.add( new Option("Method1","AU", true, true) );
select.options.add( new Option("Method2","FI") );


frag.appendChild(select);
div.appendChild(frag);