Inject HTML into a page from a content script

Question

I am building a Chrome Extension and I have a requirement to overlay a blob of html on top of a few websites. At the moment I am using a JQuery .Get to pull the

Answer 1

This is my approach:

var xmlHttp = null;

xmlHttp = new XMLHttpRequest();
xmlHttp.open( "GET", chrome.extension.getURL ("src/inject/inject.html"), false );
xmlHttp.send( null );

var inject  = document.createElement("div");
inject.innerHTML = xmlHttp.responseText
document.body.insertBefore (inject, document.body.firstChild);

Without jQuery etc.