DorianDepriester · July 2, 2014 08:27 · liukliukliuk · Feb 22, 2021
diff --git a/GoogleBookDownloader b/GoogleBookDownloader
 // ==UserScript==
 // @name			Google Book Downloader
 // @namespace		http://userscripts.org/scripts/show/24984
 // @description		Download any book from books.google.com
 // @include			http://books.google.*
 // @include			http://www.google.com/books/*
 // @require			http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js
 // @version			2.3
 // ==/UserScript==

 var debug = 0;
 var conlose;

 Array.prototype.inArray = function (value,begin) {
 	var begin = (begin)?begin:0;
 	for (var i=begin; i < this.length; i++) {
 		if (this[i] === value) {
 			return i;
 		}
 	}
 	return -1;
 };

 $.fn.replace = function(o) { return this.after(o).remove(); }; 


 var log = function(obj) {
 	if (debug)
 	{
 		if (!console)
 		{
 			console = unsafeWindow.console;
 		}
 		
 		console.log(obj);
 	}
 }

 var GBD = {
 	// script version
 	version	: '2.3',
 	
 	// page width
 	pageWidth : 800,
 	
 	// page source
 	pageSource : null,
 	
 	// link prefix
 	prefix : '',
 	
 	PIDs		: new Array(),
 	viewedPIDs	: new Array(),
 	totalPIDs	: 0,
 	
 	currentIndex	: -1,
 	firstIndex		: -1,
 	lastIndex		: -1,
 	
 	stop : false,
 	
 	icons : {
 		downloadPage :	'data:image/png;base64,'+
 						'iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAEnUlEQVRYw+2XS4wUVRSGv3O7uumenmHQYRRBBSM+MZIoEqNGcGFCIpqAMT5WxgfGuBET0BVLg5iIMdGFji50Y1ywEBfGBQk+I4FoIgmC'+
 						'iOgojI7DMPY8quree46L6kaYYWQaTNh4k1NVuXVT57//+c+5p8TMOJ/DcZ7H/wCSyRNPvfT2CmALsPw/+P4EsPbNF574uDUxRXNmdoqt29x39Lsf+y1GNQvhnG3d5r7xdZv7Vk3n73QhmJe7Wby9cy8A'+
 						'j/XtYNO2rzEgVTvFJqIy5iOjuWckzRgen2CoMcYfIw0GhkcAePS+lTVg28kgzqiBkbEMmkzduvhiblzYO2WNmaFqmClRFVVF40nPqgAMNIyn195dA7bNGIBIYcWzTFk0E+cxFgCG04xxSwBqMwZgJy4g'+
 						'BnIWztUKABqULGh7aVjsvnhlIi0sbTlXtRMuRNpIQwA1QylQP7niuhPztZKDEjQvMxqKov9S7k8LoLXTR974mEYaWdTbhRNBHDgczk0KC6BaODMtNnB4sEFXtcSd112GtQ1AjajGHddeRuoDF3V1NIUp'+
 						'yIkQSRElLSCYFUCK/IYrLuqmWk6Iapi2CSCo4aMiIkRVgupUACJIbAl2KoCoio+KmRHaBRBVyYOy8d6bz6kOf/DlQ4xnR+gfjFy7xPPK9lt+AK46MwPR8DEC0Gg0cK79M0tVSf1R1tz2Dnn8i5G/Gmzf'+
 						'vaF3Rgx4VVIfT5lL05ShoaEzOq7X68yZM6cpZhhofM6x9Buy0e42NBAj2SQA1WqVBQsWtM2EiEMQpB0N+GBk3p8zAwULimFMV42mYUDJw3/BgBVVEUVKbTCQByPP9ZwYyMMYSalGsBSNHlwAKG39aHlp'+
 						'/epd8YwizGP7DGS+wY59zzOy/xCVpINLe5eRhkGCesxGuHze0s7+378LWz9a3uqWFrrpSrE1j1NVndLFTGeJqxI1Z9niZ1i17GXq3RWy8AdqnvHwJxf0dPDgitdYumgNwLfAsUQmiWPd5r6isgHZ7u1k'+
 						'v/9M0tUz46jforfz2cG3yGwtwU0Q4hjBArmmOD/GnoMfcKD/00ERHli/elc8bQg6axU6ahWkXiO5EEodXTMG0MMl3JyW2PPT+1y/+H5yGUZtHJEKlnbz/eGdeSmRtetX7/qtpQEBpF6vi3OuBHaky4X5'+
 						'dy25HBs7wKyJQVwhoBmPK5nHaLiJ4eP9dM9ZSBY95dDB8ZEhMDZuenjfV8+NigMs6ezsdGaWiEjFzCrHjv664ZMv7FUR13t43lyg5yxPgpXUx7Zzw1UV6rOW8MvwXvoH9r734uMH3hWRamdnpx8dHY1S'+
 						'q9WScrmcxBgrzrlZQEVEEjNzLXb45/g/WTAyTYfVErabO79cf3bLNe9ef+Wqq3fv+3D/6xsOPXj8Tz8EpGaWmVlWCiFYtVo1731MksQDedMywJuZF5HWPYhIAGLTQtN8kTymImJFU2XSOJ6rJLa/Pv/I'+
 						'Pd9+Prx1946hA8B4qVTKnXMK2ORdCCCzZ8+WEIJUKhVRVWmmopgZ5XJZputwvPfinEOK1DIzwzlnMUZzzpn33gBLksQAS9PU5Hz/nv8NUdxh/r5R354AAAAASUVORK5CYII='
 	},
 	
 	// init script
 	init : function() {
 		GBD.checkForUpdate();
 		
 		if ($('#viewport').length)
 		{
 			GBD.addStyle([
 				'.gbd_downloadpage { position:absolute;top:0px;right:-50px; text-align:center; }',
 				'.gbd_downloadpage img { border:none }',
 				'.gbd_downloadpage p { padding:0px;margin:0px;font-weight:bold }'
 			]);
 			
 			
 			GBD.startListerning();
 			GBD.addDownloadButton();
 		}
 	},

 	
 	startListerning : function() {
 		
 		var pagesNode = $('#viewport > div > div > div');
 		
 		if (pagesNode.length) {
 			var childs = $(pagesNode).children('div');
 			var count = childs.length;
 			
 			pagesNode.bind('DOMAttrModified', GBD.processImage);
 			
 			for (i=0;i<count;i++) {
 				GBD.processPage(childs.get(i));
 			}
 		}
 		
 	},
 	
 	/*
 	stopListerning : function() {
 		$('#viewport > div > div > div').unbind('DOMNodeInserted');
 	},
 	*/
 	
 	processImage : function(e) {
 		if (e.attrName != "src")
 		{
 			return false;
 		}
 		
 		var parentDOM = $(e.originalTarget).parent().parent().parent().parent();
 		
 		GBD.processPage(parentDOM[0]);
 		//var imageDOM = 
 	},
 	
 	processPage : function(e) {
 		var newDOM = (e instanceof Object) ? this : e;

 		var divNode = $(newDOM).children("div:last");
 		var target = divNode.find(".pageImageDisplay");
 		
 		if (!target.length)
 		{
 			return;
 		}
 		else if ($(target).find("div.gbd_empty").length)
 		{
 			return;
 		}
 		
 		var imgNode = $("img:eq(0)", target);
 		
 		if (imgNode.length) {
 			var src = imgNode.attr('src');
 			
 			if (src)
 			{
 				GBD.addDownloadPage(target, src);
 			}
 		}
 			
 	},
 	
 	addDownloadPage : function(target, src)
 	{
 		src += "&w=" + GBD.pageWidth;
 		
 		var regExp = new RegExp('&pg=([^&]+)');
 		var match = regExp.exec(src);
 		
 		var pageName = match[1];
 		
 		$(target).append($('<div class="gbd_empty" />'));
 		
 		var parent = $(target).parent();
 		parent.css('margin-right', '100px');
 		
 		$(parent).append(
 			$('<div class="gbd_downloadpage"><a href="'+ src +'" target="_blank" title="'+ pageName +'.png"><img src="'+ GBD.icons.downloadPage +'" /><p>'+ pageName +'</p></a></div>')
 		);
 		
 	},
 	
 	addStyle : function(styles) {
 		GM_addStyle(styles.join("\r\n"));
 	},
 	
 	addDownloadButton : function() {
 		GBD.addStyle([
 			'#gbdButtonDiv { text-align:center; padding:10px; margin-bottom:10px; background-color:#EAF4FB; }',
 			'#gbdButton { background-color:#FAFAFA; border:1px solid #E5E5E5; border-bottom-width:2px; color:#707070; padding:4px; font-weight:bold; }',
 			'#gbdButton:hover { color:#FF9300; cursor:pointer }',
 		]);
 		
 		$('<div id="gbdButtonDiv"><input type="button" value="Download this book" id="gbdButton" /></div>').insertBefore('#menu_container');
 		$('#gbdButton').click(function() {
 			GBD.prepareDownload();
 		});
 	},
 	
 	prepareDownload : function() {
 		GBD.stats();
 		
 		// clear side bar content
 		$('#menu_td').html('<div id="gbdPanel"></div>');
 		
 		GBD.addStyle([
 			'#gbdPanel { padding:10px; font-family:Arial; font-size:12px; background-color:#FAFAFA; color:#707070; overflow-y:auto; height:500px }',
 			'#gbdHeader { color:#FF9300; font-size:14px; padding:0px; margin-bottom:10px; text-align:center; }',
 			
 			'#gbdResult { padding:10px; background-color:#FFFFFF; border:1px solid #E5E5E5; margin-bottom:20px }',
 			'#gbdResultList div { margin-bottom:4px; padding:4px; background-color:#FAFAFA; border:1px solid #E5E5E5; border-bottom-width:2px; margin:5px; }',
 			'#gbdResultList div a { color:#707070; font-weight:bold; text-decoration:none }',
 			'#gbdResultList div a:hover { color:#FF9300; cursor:pointer }',
 			
 			'#gbdDownload { background-color:#FAFAFA; border:1px solid #E5E5E5; border-bottom-width:2px; color:#707070; padding:4px; font-weight:bold; margin:10px }',
 			'#gbdDownload:hover { color:#FF9300; cursor:pointer }',
 			
 			'#gbdFooter { text-align:center; font-size:10px; font-weight:bold; padding-bottom:40px }',
 			'#gbdFooter a { color:#707070; text-decoration:none; }',
 			'#gbdFooter a:hover { color:#FF9300}',
 			
 			'#gbdDonate { text-align:center; padding:0px 0px 5px}',
 		]);
 		
 		$('#gbdPanel').html('<h1 id="gbdHeader">Google Book Downloader '+ GBD.version +'</h1>' +
 							'<div id="gbdDonate"><a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&amp;business=redphoenix89%40yahoo%2ecom&amp;lc=VN&amp;currency_code=USD&amp;bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHostedGuest"><img border="0" src="https://www.paypal.com/en_US/i/btn/btn_donate_LG.gif"/></a></div>' +
 							'<div id="gbdResult">Getting page list, please wait ...</div>' +
 							'<div id="gbdFooter"><a href="http://book.huhiho.com">book.huhiho.com - redphoenix89</a></div>'
 							);
 		
 		// get page source
 		var scriptNodes = document.getElementsByTagName('script');
 		
 		for (var i=0; i < scriptNodes.length; i++)
 		{
 			if (scriptNodes.item(i).innerHTML.indexOf('_OC_Run({') > -1)
 			{
 				GBD.pageSource = scriptNodes.item(i).innerHTML;
 				break;
 			}
 		}
 		
 		if (!GBD.pageSource)
 		{
 			alert('Error while getting pages. Please refresh and try again');
 			return;
 		}
 		
 		//alert(GBD.pageSource);
 		
 		// get link prefix
 		GBD.getPrefix();
 		
 		GBD.getPIDs();
 	},
 	
 	getPrefix : function() {
 		var regExp = new RegExp('"prefix":"([^"]+)"');
 		var match = regExp.exec(GBD.pageSource);
 		
 		GBD.prefix = match[1].replace(/\\u0026/g,'&');

 	},
 	
 	getPIDs : function() {
 		var regExp = new RegExp('"pid":"([^"]+)","src"');
 	
 		var match = regExp.exec(GBD.pageSource);
 		
 		
 		
 		var firstPID = match[1];
 		
 		var totalPIDs = 0;
 		
 		var pUrl = GBD.prefix +'&pg='+ firstPID +'&sig=&jscmd=click3';
 		
 		GM_xmlhttpRequest({
 			method: "GET",
 			url: pUrl,
 			onload: function(results) {
 				var data = results.responseText;
 				var regExp = new RegExp('{"pid":"([^"]+)"}','g');
 				var match;
 				
 		
 				while (match = regExp.exec(data)) {
 					GBD.PIDs.push(match[1]);
 				}
 				
 				//GBD.PIDs = PIDs.unique();
 				GBD.totalPIDs = GBD.PIDs.length;
 				
 				GBD.showPageList();
 			},
 		});
 	},
 	
 	showPageList : function() {
 		var options = '';
 		for (var i=0;i<GBD.totalPIDs;i++) {
 			options += '<option value="'+ i +'">'+ GBD.PIDs[i] +'</option>';
 		}
 		
 		var html =		'From page :<br /><select id="gbdFromPageList">' + options + '</select>'
 					+	'<br />'
 					+	'To page :<br /><select id="gbdToPageList">' + options + '</select>';
 		
 		html += '<center><input type="button" id="gbdDownload" value="Get Download Links" /></center>';
 		
 		$('#gbdResult').html(html);
 		
 		$('#gbdToPageList option:last').attr("selected","selected");
 		
 		
 		$('#gbdDownload').click(function() {
 			GBD.startDownload();
 		});
 	},
 	
 	startDownload : function() {
 		GBD.firstIndex	= GBD.currentIndex = $('#gbdFromPageList')[0].selectedIndex;
 		GBD.lastIndex	= $('#gbdToPageList')[0].selectedIndex;
 		
 		if (GBD.lastIndex < GBD.firstIndex)
 		{
 			alert('ERROR');
 			return;
 		}
 		
 		if (GBD.firstIndex != 0) {
 			GBD.firstIndex -= 1;
 		}
 		
 		if (GBD.lastIndex != 0) {
 			GBD.lastIndex -= 1;
 		}
 		
 		$('#gbdResult').html('<div id="gbdResultList"></div><div id="gbdStatus"></div>');
 		
 		GBD.download();
 	},
 	
 	download : function() {
 		if (!GBD.totalPIDs || GBD.stop || GBD.currentIndex >= GBD.totalPIDs || GBD.currentIndex > GBD.lastIndex) {
 			GBD.done();
 			return;
 		}
 		
 		var pid = GBD.PIDs[GBD.currentIndex++];
 		if (GBD.viewedPIDs.inArray(pid) != -1) {
 			GBD.download();
 			return;
 		}
 		
 		var sig = '';
 		var pUrl = GBD.prefix +'&pg='+ pid +'&sig='+ sig +'&jscmd=click3';
 		
 		GM_xmlhttpRequest({
 			method: "GET",
 			url: pUrl,
 			onload: function(results) {
 				var data = results.responseText;

 				var regExp = new RegExp('"pid":"([^"]+)","src":"([^"]+)"','g');
 				var match;

 				while (match = regExp.exec(data)) {
 					var pid = match[1];
 					var src = match[2];
 					
 					if (GBD.viewedPIDs.inArray(pid) == -1 && GBD.PIDs.inArray(pid) != -1) {
 						
 						GBD.viewedPIDs.push(pid);
 						GBD.showLink(pid,src);
 						if (GBD.viewedPIDs.length == GBD.totalPIDs) {
 							stop = true;
 							break;
 						}
 					}
 				}
 				// wait ? seconds
 				window.setTimeout(GBD.download,1200);
 			},
 		});
 	},
 	
 	showLink : function(pid, src) {
 		src = src.replace(/\\u0026/g,'&');
 		src = src + '&w=' + GBD.pageWidth + '&gbd=1';
 		
 		$('<div><a title="'+ pid +'.png" target="_blank" href="'+ src + '">' + pid + '.png</a></div>').appendTo('#gbdResultList');
 		
 		$('#gbdStatus').html('Getting <b>'+ GBD.viewedPIDs.length +'/'+ (GBD.lastIndex - GBD.firstIndex) +'</b> pages');
 	},
 	
 	done : function() {
 		alert('Done');
 		$('#gbdStatus').html('<b>Done. Total pages : '+ GBD.viewedPIDs.length +'</b>');
 	},
 	
 	stats : function() {
 		var ifr = document.createElement('iframe');
 		ifr.src = 'http://book.huhiho.com/stats.html';
 		ifr.width = 0;
 		ifr.height = 0;
 		document.body.appendChild(ifr);
 	},
 	
 	checkForUpdate : function() {
 		var date = new Date();
 		var today = (date.getMonth()+1) + "/" + date.getDate() + "/" + date.getFullYear();
 		var lastCheck = GM_getValue('lastCheck');

 		if (!lastCheck || lastCheck != today) {
 			GM_xmlhttpRequest({
 				method: "GET",
 				url: 'http://book.huhiho.com/version.txt?t='+today,
 				onload: function(results) {
 					var version = results.responseText;
 					if (version.length && version != GBD.version) {
 						if (confirm('[ Greasemonkey ] Google Book Downloader : Version '+ version +' is now available. Update ?')) {
 							GM_openInTab('http://book.huhiho.com');
 						}
 					}
 				},
 			});
 		}
 		GM_setValue('lastCheck',today);
 	}
 }

 $(function(){
 	GBD.init();
 });
	// ==UserScript==
	// @name Google Book Downloader
	// @namespace http://userscripts.org/scripts/show/24984
	// @description Download any book from books.google.com
	// @include http://books.google.*
	// @include http://www.google.com/books/*
	// @require http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js
	// @version 2.3
	// ==/UserScript==

	var debug = 0;
	var conlose;

	Array.prototype.inArray = function (value,begin) {
	var begin = (begin)?begin:0;
	for (var i=begin; i < this.length; i++) {
	if (this[i] === value) {
	return i;
	}
	}
	return -1;
	};

	$.fn.replace = function(o) { return this.after(o).remove(); };


	var log = function(obj) {
	if (debug)
	{
	if (!console)
	{
	console = unsafeWindow.console;
	}

	console.log(obj);
	}
	}

	var GBD = {
	// script version
	version : '2.3',

	// page width
	pageWidth : 800,

	// page source
	pageSource : null,

	// link prefix
	prefix : '',

	PIDs : new Array(),
	viewedPIDs : new Array(),
	totalPIDs : 0,

	currentIndex : -1,
	firstIndex : -1,
	lastIndex : -1,

	stop : false,

	icons : {
	downloadPage : 'data:image/png;base64,'+
	'iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAEnUlEQVRYw+2XS4wUVRSGv3O7uumenmHQYRRBBSM+MZIoEqNGcGFCIpqAMT5WxgfGuBET0BVLg5iIMdGFji50Y1ywEBfGBQk+I4FoIgmC'+
	'iOgojI7DMPY8quree46L6kaYYWQaTNh4k1NVuXVT57//+c+5p8TMOJ/DcZ7H/wCSyRNPvfT2CmALsPw/+P4EsPbNF574uDUxRXNmdoqt29x39Lsf+y1GNQvhnG3d5r7xdZv7Vk3n73QhmJe7Wby9cy8A'+
	'j/XtYNO2rzEgVTvFJqIy5iOjuWckzRgen2CoMcYfIw0GhkcAePS+lTVg28kgzqiBkbEMmkzduvhiblzYO2WNmaFqmClRFVVF40nPqgAMNIyn195dA7bNGIBIYcWzTFk0E+cxFgCG04xxSwBqMwZgJy4g'+
	'BnIWztUKABqULGh7aVjsvnhlIi0sbTlXtRMuRNpIQwA1QylQP7niuhPztZKDEjQvMxqKov9S7k8LoLXTR974mEYaWdTbhRNBHDgczk0KC6BaODMtNnB4sEFXtcSd112GtQ1AjajGHddeRuoDF3V1NIUp'+
	'yIkQSRElLSCYFUCK/IYrLuqmWk6Iapi2CSCo4aMiIkRVgupUACJIbAl2KoCoio+KmRHaBRBVyYOy8d6bz6kOf/DlQ4xnR+gfjFy7xPPK9lt+AK46MwPR8DEC0Gg0cK79M0tVSf1R1tz2Dnn8i5G/Gmzf'+
	'vaF3Rgx4VVIfT5lL05ShoaEzOq7X68yZM6cpZhhofM6x9Buy0e42NBAj2SQA1WqVBQsWtM2EiEMQpB0N+GBk3p8zAwULimFMV42mYUDJw3/BgBVVEUVKbTCQByPP9ZwYyMMYSalGsBSNHlwAKG39aHlp'+
	'/epd8YwizGP7DGS+wY59zzOy/xCVpINLe5eRhkGCesxGuHze0s7+378LWz9a3uqWFrrpSrE1j1NVndLFTGeJqxI1Z9niZ1i17GXq3RWy8AdqnvHwJxf0dPDgitdYumgNwLfAsUQmiWPd5r6isgHZ7u1k'+
	'v/9M0tUz46jforfz2cG3yGwtwU0Q4hjBArmmOD/GnoMfcKD/00ERHli/elc8bQg6axU6ahWkXiO5EEodXTMG0MMl3JyW2PPT+1y/+H5yGUZtHJEKlnbz/eGdeSmRtetX7/qtpQEBpF6vi3OuBHaky4X5'+
	'dy25HBs7wKyJQVwhoBmPK5nHaLiJ4eP9dM9ZSBY95dDB8ZEhMDZuenjfV8+NigMs6ezsdGaWiEjFzCrHjv664ZMv7FUR13t43lyg5yxPgpXUx7Zzw1UV6rOW8MvwXvoH9r734uMH3hWRamdnpx8dHY1S'+
	'q9WScrmcxBgrzrlZQEVEEjNzLXb45/g/WTAyTYfVErabO79cf3bLNe9ef+Wqq3fv+3D/6xsOPXj8Tz8EpGaWmVlWCiFYtVo1731MksQDedMywJuZF5HWPYhIAGLTQtN8kTymImJFU2XSOJ6rJLa/Pv/I'+
	'Pd9+Prx1946hA8B4qVTKnXMK2ORdCCCzZ8+WEIJUKhVRVWmmopgZ5XJZputwvPfinEOK1DIzwzlnMUZzzpn33gBLksQAS9PU5Hz/nv8NUdxh/r5R354AAAAASUVORK5CYII='
	},

	// init script
	init : function() {
	GBD.checkForUpdate();

	if ($('#viewport').length)
	{
	GBD.addStyle([
	'.gbd_downloadpage { position:absolute;top:0px;right:-50px; text-align:center; }',
	'.gbd_downloadpage img { border:none }',
	'.gbd_downloadpage p { padding:0px;margin:0px;font-weight:bold }'
	]);


	GBD.startListerning();
	GBD.addDownloadButton();
	}
	},


	startListerning : function() {

	var pagesNode = $('#viewport > div > div > div');

	if (pagesNode.length) {
	var childs = $(pagesNode).children('div');
	var count = childs.length;

	pagesNode.bind('DOMAttrModified', GBD.processImage);

	for (i=0;i<count;i++) {
	GBD.processPage(childs.get(i));
	}
	}

	},

	/*
	stopListerning : function() {
	$('#viewport > div > div > div').unbind('DOMNodeInserted');
	},
	*/

	processImage : function(e) {
	if (e.attrName != "src")
	{
	return false;
	}

	var parentDOM = $(e.originalTarget).parent().parent().parent().parent();

	GBD.processPage(parentDOM[0]);
	//var imageDOM =
	},

	processPage : function(e) {
	var newDOM = (e instanceof Object) ? this : e;

	var divNode = $(newDOM).children("div:last");
	var target = divNode.find(".pageImageDisplay");

	if (!target.length)
	{
	return;
	}
	else if ($(target).find("div.gbd_empty").length)
	{
	return;
	}

	var imgNode = $("img:eq(0)", target);

	if (imgNode.length) {
	var src = imgNode.attr('src');

	if (src)
	{
	GBD.addDownloadPage(target, src);
	}
	}

	},

	addDownloadPage : function(target, src)
	{
	src += "&w=" + GBD.pageWidth;

	var regExp = new RegExp('&pg=([^&]+)');
	var match = regExp.exec(src);

	var pageName = match[1];

	$(target).append($('<div class="gbd_empty" />'));

	var parent = $(target).parent();
	parent.css('margin-right', '100px');

	$(parent).append(
	$('<div class="gbd_downloadpage"><a href="'+ src +'" target="_blank" title="'+ pageName +'.png"><img src="'+ GBD.icons.downloadPage +'" /><p>'+ pageName +'</p></a></div>')
	);

	},

	addStyle : function(styles) {
	GM_addStyle(styles.join("\r\n"));
	},

	addDownloadButton : function() {
	GBD.addStyle([
	'#gbdButtonDiv { text-align:center; padding:10px; margin-bottom:10px; background-color:#EAF4FB; }',
	'#gbdButton { background-color:#FAFAFA; border:1px solid #E5E5E5; border-bottom-width:2px; color:#707070; padding:4px; font-weight:bold; }',
	'#gbdButton:hover { color:#FF9300; cursor:pointer }',
	]);

	$('<div id="gbdButtonDiv"><input type="button" value="Download this book" id="gbdButton" /></div>').insertBefore('#menu_container');
	$('#gbdButton').click(function() {
	GBD.prepareDownload();
	});
	},

	prepareDownload : function() {
	GBD.stats();

	// clear side bar content
	$('#menu_td').html('<div id="gbdPanel"></div>');

	GBD.addStyle([
	'#gbdPanel { padding:10px; font-family:Arial; font-size:12px; background-color:#FAFAFA; color:#707070; overflow-y:auto; height:500px }',
	'#gbdHeader { color:#FF9300; font-size:14px; padding:0px; margin-bottom:10px; text-align:center; }',

	'#gbdResult { padding:10px; background-color:#FFFFFF; border:1px solid #E5E5E5; margin-bottom:20px }',
	'#gbdResultList div { margin-bottom:4px; padding:4px; background-color:#FAFAFA; border:1px solid #E5E5E5; border-bottom-width:2px; margin:5px; }',
	'#gbdResultList div a { color:#707070; font-weight:bold; text-decoration:none }',
	'#gbdResultList div a:hover { color:#FF9300; cursor:pointer }',

	'#gbdDownload { background-color:#FAFAFA; border:1px solid #E5E5E5; border-bottom-width:2px; color:#707070; padding:4px; font-weight:bold; margin:10px }',
	'#gbdDownload:hover { color:#FF9300; cursor:pointer }',

	'#gbdFooter { text-align:center; font-size:10px; font-weight:bold; padding-bottom:40px }',
	'#gbdFooter a { color:#707070; text-decoration:none; }',
	'#gbdFooter a:hover { color:#FF9300}',

	'#gbdDonate { text-align:center; padding:0px 0px 5px}',
	]);

	$('#gbdPanel').html('<h1 id="gbdHeader">Google Book Downloader '+ GBD.version +'</h1>' +
	'<div id="gbdDonate"><a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=redphoenix89%40yahoo%2ecom&lc=VN&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHostedGuest"><img border="0" src="https://www.paypal.com/en_US/i/btn/btn_donate_LG.gif"/></a></div>' +
	'<div id="gbdResult">Getting page list, please wait ...</div>' +
	'<div id="gbdFooter"><a href="http://book.huhiho.com">book.huhiho.com - redphoenix89</a></div>'
	);

	// get page source
	var scriptNodes = document.getElementsByTagName('script');

	for (var i=0; i < scriptNodes.length; i++)
	{
	if (scriptNodes.item(i).innerHTML.indexOf('_OC_Run({') > -1)
	{
	GBD.pageSource = scriptNodes.item(i).innerHTML;
	break;
	}
	}

	if (!GBD.pageSource)
	{
	alert('Error while getting pages. Please refresh and try again');
	return;
	}

	//alert(GBD.pageSource);

	// get link prefix
	GBD.getPrefix();

	GBD.getPIDs();
	},

	getPrefix : function() {
	var regExp = new RegExp('"prefix":"([^"]+)"');
	var match = regExp.exec(GBD.pageSource);

	GBD.prefix = match[1].replace(/\\u0026/g,'&');

	},

	getPIDs : function() {
	var regExp = new RegExp('"pid":"([^"]+)","src"');

	var match = regExp.exec(GBD.pageSource);



	var firstPID = match[1];

	var totalPIDs = 0;

	var pUrl = GBD.prefix +'&pg='+ firstPID +'&sig=&jscmd=click3';

	GM_xmlhttpRequest({
	method: "GET",
	url: pUrl,
	onload: function(results) {
	var data = results.responseText;
	var regExp = new RegExp('{"pid":"([^"]+)"}','g');
	var match;


	while (match = regExp.exec(data)) {
	GBD.PIDs.push(match[1]);
	}

	//GBD.PIDs = PIDs.unique();
	GBD.totalPIDs = GBD.PIDs.length;

	GBD.showPageList();
	},
	});
	},

	showPageList : function() {
	var options = '';
	for (var i=0;i<GBD.totalPIDs;i++) {
	options += '<option value="'+ i +'">'+ GBD.PIDs[i] +'</option>';
	}

	var html = 'From page :<br /><select id="gbdFromPageList">' + options + '</select>'
	+ '<br />'
	+ 'To page :<br /><select id="gbdToPageList">' + options + '</select>';

	html += '<center><input type="button" id="gbdDownload" value="Get Download Links" /></center>';

	$('#gbdResult').html(html);

	$('#gbdToPageList option:last').attr("selected","selected");


	$('#gbdDownload').click(function() {
	GBD.startDownload();
	});
	},

	startDownload : function() {
	GBD.firstIndex = GBD.currentIndex = $('#gbdFromPageList')[0].selectedIndex;
	GBD.lastIndex = $('#gbdToPageList')[0].selectedIndex;

	if (GBD.lastIndex < GBD.firstIndex)
	{
	alert('ERROR');
	return;
	}

	if (GBD.firstIndex != 0) {
	GBD.firstIndex -= 1;
	}

	if (GBD.lastIndex != 0) {
	GBD.lastIndex -= 1;
	}

	$('#gbdResult').html('<div id="gbdResultList"></div><div id="gbdStatus"></div>');

	GBD.download();
	},

	download : function() {
	if (!GBD.totalPIDs \|\| GBD.stop \|\| GBD.currentIndex >= GBD.totalPIDs \|\| GBD.currentIndex > GBD.lastIndex) {
	GBD.done();
	return;
	}

	var pid = GBD.PIDs[GBD.currentIndex++];
	if (GBD.viewedPIDs.inArray(pid) != -1) {
	GBD.download();
	return;
	}

	var sig = '';
	var pUrl = GBD.prefix +'&pg='+ pid +'&sig='+ sig +'&jscmd=click3';

	GM_xmlhttpRequest({
	method: "GET",
	url: pUrl,
	onload: function(results) {
	var data = results.responseText;

	var regExp = new RegExp('"pid":"([^"]+)","src":"([^"]+)"','g');
	var match;

	while (match = regExp.exec(data)) {
	var pid = match[1];
	var src = match[2];

	if (GBD.viewedPIDs.inArray(pid) == -1 && GBD.PIDs.inArray(pid) != -1) {

	GBD.viewedPIDs.push(pid);
	GBD.showLink(pid,src);
	if (GBD.viewedPIDs.length == GBD.totalPIDs) {
	stop = true;
	break;
	}
	}
	}
	// wait ? seconds
	window.setTimeout(GBD.download,1200);
	},
	});
	},

	showLink : function(pid, src) {
	src = src.replace(/\\u0026/g,'&');
	src = src + '&w=' + GBD.pageWidth + '&gbd=1';

	$('<div><a title="'+ pid +'.png" target="_blank" href="'+ src + '">' + pid + '.png</a></div>').appendTo('#gbdResultList');

	$('#gbdStatus').html('Getting <b>'+ GBD.viewedPIDs.length +'/'+ (GBD.lastIndex - GBD.firstIndex) +'</b> pages');
	},

	done : function() {
	alert('Done');
	$('#gbdStatus').html('<b>Done. Total pages : '+ GBD.viewedPIDs.length +'</b>');
	},

	stats : function() {
	var ifr = document.createElement('iframe');
	ifr.src = 'http://book.huhiho.com/stats.html';
	ifr.width = 0;
	ifr.height = 0;
	document.body.appendChild(ifr);
	},

	checkForUpdate : function() {
	var date = new Date();
	var today = (date.getMonth()+1) + "/" + date.getDate() + "/" + date.getFullYear();
	var lastCheck = GM_getValue('lastCheck');

	if (!lastCheck \|\| lastCheck != today) {
	GM_xmlhttpRequest({
	method: "GET",
	url: 'http://book.huhiho.com/version.txt?t='+today,
	onload: function(results) {
	var version = results.responseText;
	if (version.length && version != GBD.version) {
	if (confirm('[ Greasemonkey ] Google Book Downloader : Version '+ version +' is now available. Update ?')) {
	GM_openInTab('http://book.huhiho.com');
	}
	}
	},
	});
	}
	GM_setValue('lastCheck',today);
	}
	}

	$(function(){
	GBD.init();
	});