background js code example
Example 1: js background
document.body.style.background = "#f3f3f3 url('img_tree.png') no-repeat right top";
Example 2: js background image
document.body.style.backgroundImage = "url('img_tree.png')";
document.body.style.background = "#f3f3f3 url('img_tree.png') no-repeat right top";
document.body.style.backgroundImage = "url('img_tree.png')";