Have embedded images open with FancyBox, not in new window - image

Question

This section of code in my /js/global.js file activate each image to open in a new window when clicked. Is it possible to alter this code to have each open in a FancyBox instead? I have downloaded a FancyBox plugin for a Vanilla forum I am running, and it currently only targets images embedded in posts After You Click On The Post Itself. On the main page, clicking on an image opens a new window.
// Shrink large images to fit into message space, and pop into new window when clicked.
// This needs to happen in onload because otherwise the image sizes are not yet known.
jQuery(window).load(function() {
var props = ['Width', 'Height'], prop;
while (prop = props.pop()) {
(function (natural, prop) {
jQuery.fn[natural] = (natural in new Image()) ?
function () {
return this[0][natural];
} :
function () {
var
node = this[0],
img,
value;
if (node.tagName.toLowerCase() === 'img') {
img = new Image();
img.src = node.src,
value = img[prop];
}
return value;
};
}('natural' + prop, prop.toLowerCase()));
}
jQuery('div.Message img').each(function(i,img) {
var img = jQuery(img);
var container = img.closest('div.Message');
if (img.naturalWidth() > container.width() && container.width() > 0) {
img.wrap('');
}
});
// Let the world know we're done here
jQuery(window).trigger('ImagesResized');
});

Answer 1

Add an specific class to your wrapped images, modifying this line
img.wrap('');
... into this :
img.wrap('<a class="fancybox" href="'+$(img).attr('src')+'"></a>');
Then bind fancybox to that selector (".fancybox") in a custom script like :
$(".fancybox").fancybox();
This assumes that you have properly loaded the fancybox js and css files.