Adding JQuery to a running webpage using the DOM and Opera browser add-ons

I'm currently working on an Opera Extension and I have a question.

Is there a way to use the includes folder in order to directly inject jQuery into the live HTML of a webpage?

For example, can I change the background color of the DOM to black?

If possible, how would this script work?

// The injected script

var elems = document.getElementsByTagName("body"); 

var arr = jQuery.makeArray(elems);

$(document).ready(function() {
$("body").css("background-color", "#000000");
 $("body").css("color", "#ffffff");
 $(arr).appendTo(document.body);

});

If anyone could provide a tutorial or direct me to one, as I'm having trouble visualizing how to accomplish this myself.

Thank you, Kev

javascriptjqueryhtmlcssopera

Answer №1

Have you considered dissecting this extension to understand its workings?

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