html can you change src file in source code example

Example 1: javascript change image src

//change image src
document.getElementById('myImageID').src="images/my_other_image.png";

Example 2: js change video src

var video = document.getElementById('video');
var source = document.getElementById('source');

source.setAttribute('src', 'http://www.tools4movies.com/trailers/1012/Kill%20Bill%20Vol.3.mp4');

video.load();
video.play();

Example 3: how to edit image tags in javascript

<a href='#' onclick='edit()'><img src="../template/edit.png" id="edit-save"/></a>