Zoom the page using JavaScript

Question

How to zoom in/out a page using JavaScript?

= please but comments to explain the code =

Answer 1

function ZoomIn()
{
    var Page = document.getElementById('Body');
    var zoom = parseInt(Page.style.zoom) + 50 +'%'
    Page.style.zoom = zoom;
    return false;
}

function ZoomOut()
{
    var Page = document.getElementById('Body');
    var zoom = parseInt(Page.style.zoom) - 50 +'%'
    Page.style.zoom = zoom;
    return false;
}

Answer 2

try this

function ajustaZoom() {
        document.body.style.zoom = "67%" 
    }