/*
 * Paper.js - The Swiss Army Knife of Vector Graphics Scripting.
 * http://paperjs.org/
 *
 * Copyright (c) 2011 - 2014, Juerg Lehni & Jonathan Puckey
 * http://scratchdisk.com/ & http://jonathanpuckey.com/
 *
 * Distributed under the MIT license. See LICENSE file for details.
 *
 * All rights reserved.
 */

var Http = {
	request: function(method, url, callback) {
		// Code borrowed from Coffee Script and extended:
		var xhr = new (window.ActiveXObject || XMLHttpRequest)(
					'Microsoft.XMLHTTP');
		xhr.open(method.toUpperCase(), url, true);
		if ('overrideMimeType' in xhr)
			xhr.overrideMimeType('text/plain');
		xhr.onreadystatechange = function() {
			if (xhr.readyState === 4) {
				var status = xhr.status;
				if (status === 0 || status === 200) {
					callback.call(xhr, xhr.responseText);
				} else {
					throw new Error('Could not load ' + url + ' (Error '
							+ status + ')');
				}
			}
		};
		return xhr.send(null);
	}
};