Accessing DOM element of a webpage without opening it

I have started working on JavaScript. I want to count the number of frames/开发者_如何学Pythonanchors on yahoo homepage without opening it(means I don't want to load the page in another window or frame). I didn't find a proper solution for this without using AJAX.Can't we create a document object referring to remote page? As I am using JavaScript without any framework, can someone guide me how to do this?

You have very few options if you're working on the client side only. This is primarily because you'll be dealing with the dreaded, but necessary, cross-domain policy. However, even if you don't have cross scripting issues, it won't be possible to accomplish this without AJAX. You'll need to make a request to a server for the page's HTML somehow. I would suggest taking a look at YQL as it appears to solve the cross-domain issue.

You'll have to execute an HTTP request to get the HTML string to feed into a DOM object. AJAX is the easiest way to do that, why do you want to avoid AJAX?

In plain old Java you can create a DocumentBuilder and source a document with a URL, but I don't believe this is available in javascript.