Answers for "can you define a DOM element using a file path"

javascript get element by id

var element = document.getElementById("YourElementId");

javascript get element by id

var element = document.getElementById("YourElementId");

how to use input type file and show selected file on screen

<input type="file" name="file" id="file" multiple 
       onchange="javascript:updateList()" />
<br/>Selected files:
<div id="fileList"></div>

how to use input type file and show selected file on screen

<input type="file" name="file" id="file" multiple 
       onchange="javascript:updateList()" />
<br/>Selected files:
<div id="fileList"></div>