Source: globals.js

/* NOTE: had to disable 'use strict' for the JSONP library */

/*
Copyright (c) 2011, Daniel Guerrero
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL DANIEL GUERRERO BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * Uses the new array typed in javascript to binary base64 encode/decode
 * at the moment just decodes a binary base64 encoded
 * into either an ArrayBuffer (decodeArrayBuffer)
 * or into an Uint8Array (decode)
 * 
 * References:
 * https://developer.mozilla.org/en/JavaScript_typed_arrays/ArrayBuffer
 * https://developer.mozilla.org/en/JavaScript_typed_arrays/Uint8Array
 */
var Base64Binary={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",decodeArrayBuffer:function(e){var t=e.length/4*3;var n=new ArrayBuffer(t);this.decode(e,n);return n},decode:function(e,t){var n=this._keyStr.indexOf(e.charAt(e.length-1));var r=this._keyStr.indexOf(e.charAt(e.length-2));var i=e.length/4*3;if(n==64)i--;if(r==64)i--;var s;var o,u,a;var f,l,c,h;var p=0;var d=0;if(t)s=new Uint8Array(t);else s=new Uint8Array(i);e=e.replace(/[^A-Za-z0-9\+\/\=]/g,"");for(p=0;p<i;p+=3){f=this._keyStr.indexOf(e.charAt(d++));l=this._keyStr.indexOf(e.charAt(d++));c=this._keyStr.indexOf(e.charAt(d++));h=this._keyStr.indexOf(e.charAt(d++));o=f<<2|l>>4;u=(l&15)<<4|c>>2;a=(c&3)<<6|h;s[p]=o;if(c!=64)s[p+1]=u;if(h!=64)s[p+2]=a}return s}}

/*
* Lightweight JSONP fetcher
* Copyright 2010-2012 Erik Karlsson. All rights reserved.
* BSD licensed
*/


/*
* Usage:
* 
* JSONP.get( 'someUrl.php', {param1:'123', param2:'456'}, function(data){
*   //do something with data, which is the JSON object you should retrieve from someUrl.php
* });
*/
var JSONP = (function(){
    var counter = 0, head, window = this, config = {};
    function load(url, pfnError) {
        var script = document.createElement('script'),
            done = false;
        script.src = url;
        script.async = true;
 
        var errorHandler = pfnError || config.error;
        if ( typeof errorHandler === 'function' ) {
            script.onerror = function(ex){
                errorHandler({url: url, event: ex});
            };
        }

        script.onload = script.onreadystatechange = function() {
            if ( !done && (!this.readyState || this.readyState === "loaded" || this.readyState === "complete") ) {
                done = true;
                script.onload = script.onreadystatechange = null;
                if ( script && script.parentNode ) {
                    script.parentNode.removeChild( script );
                }
            }
        };

        if ( !head ) {
            head = document.getElementsByTagName('head')[0];
        }
        head.appendChild( script );
    };
    function encode(str) {
        return encodeURIComponent(str);
    };
    function jsonp(url, params, callback, callbackName) {
        var query = (url||'').indexOf('?') === -1 ? '?' : '&', key;

        callbackName = (callbackName||config['callbackName']||'callback');
        var uniqueName = callbackName + "_json" + (++counter);

        params = params || {};
        for ( key in params ) {
            if ( params.hasOwnProperty(key) ) {
                query += encode(key) + "=" + encode(params[key]) + "&";
            }
        }   
        window[ uniqueName ] = function(data){
            callback(data);
            try {
                delete window[ uniqueName ];
            } catch (e) {}
            window[ uniqueName ] = null;
        };
 
        load(url + query + callbackName + '=' + uniqueName);
        return uniqueName;
    };
    function setDefaults(obj){
        config = obj;
    };
    return {
        get:jsonp,
        init:setDefaults
    };
}());

function _testCSS(prop) {
    return prop in document.documentElement.style;
}

function _triggerEvent(el, name) {
    if (window.CustomEvent) {
        var event = new CustomEvent(name);
    } else {
        var event = document.createEvent('CustomEvent');
        event.initCustomEvent(name, true, true);
    }
    el.dispatchEvent(event);
}

function _extend(out) {
  out = out || {};

  for (var i = 1; i < arguments.length; i++) {
    if (!arguments[i])
      continue;

    for (var key in arguments[i]) {
      if (arguments[i].hasOwnProperty(key))
        out[key] = arguments[i][key];
    }
  }

  return out;
}

if ( XMLHttpRequest.prototype.sendAsBinary === undefined ) {
    XMLHttpRequest.prototype.sendAsBinary = function(string) {
        var bytes = Array.prototype.map.call(string, function(c) {
            return c.charCodeAt(0) & 0xff;
        });
        this.send(new Uint8Array(bytes).buffer);
    };
}

var SERVER_URL = "http://lab.layerframe.com/postcard/scripts/";