var Base64Binary = {
			_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",


			/* will return a  Uint8Array type */
			decodeArrayBuffer: function(input) {
				var bytes = (input.length/4) * 3;
				var ab = new ArrayBuffer(bytes);
				this.decode(input, ab);


				return ab;
			},


			decode: function(input, arrayBuffer) {
				//get last chars to see if are valid
				var lkey1 = this._keyStr.indexOf(input.charAt(input.length-1));		 
				var lkey2 = this._keyStr.indexOf(input.charAt(input.length-2));		 


				var bytes = (input.length/4) * 3;
				if (lkey1 == 64) bytes--; //padding chars, so skip
				if (lkey2 == 64) bytes--; //padding chars, so skip


				var uarray;
				var chr1, chr2, chr3;
				var enc1, enc2, enc3, enc4;
				var i = 0;
				var j = 0;


				if (arrayBuffer)
					uarray = new Uint8Array(arrayBuffer);
				else
					uarray = new Uint8Array(bytes);


				input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");


				for (i=0; i<bytes; i+=3) {	
					//get the 3 octects in 4 ascii chars
					enc1 = this._keyStr.indexOf(input.charAt(j++));
					enc2 = this._keyStr.indexOf(input.charAt(j++));
					enc3 = this._keyStr.indexOf(input.charAt(j++));
					enc4 = this._keyStr.indexOf(input.charAt(j++));


					chr1 = (enc1 << 2) | (enc2 >> 4);
					chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
					chr3 = ((enc3 & 3) << 6) | enc4;


					uarray[i] = chr1;			
					if (enc3 != 64) uarray[i+1] = chr2;
					if (enc4 != 64) uarray[i+2] = chr3;
				}


				return uarray;	
			}
		}
		
		function get_domain() {
			var realRef = location.href;
			var now = realRef.indexOf('/view.html');
			if(now > 0) {
				var rd = realRef.substring(0, now);
			} else {
				return false;
			}
			var ck = rd.indexOf('http://');
			if(ck >= 0) {
				return rd;
			} else {
				return false;
			}
		}
		
		var real_xxx = 1;
		var bconnectURL;
		var reDo;
		var ipath;
		function show_sns_panel() {
			if(nonMail == 1) {
				alert("SNS공유가 제한된 책자 입니다.");
				return;
			}
			
			reDo = get_domain();
			if(!reDo) {
				alert('SNS공유가 제한된 책자 입니다.');
				return;
			}

			$("#dialog").dialog({
				modal: true,
				resizable:false,
				title: "SNS 공유하기",
				width: 312,
				height: 414,
				zIndex: 9000,
				stack: true,
				close: function() {
					document.sns_form.sns_contetns.value='';
					$(this).dialog('destroy');
				}
			});
			
			real_xxx = xxx;
			if(real_xxx > totalPage)
				real_xxx = totalPage;

			sns_str = booknameUTF+"\n";
			bconnectURL = reDo+"/view.html?FdirectPageNum[]="+real_xxx;
			document.sns_form.sns_contetns.value = sns_str ;
			$('textarea#sns_contetns').blur();
			var tp_path = "./"+PageData[real_xxx][1]+"/S_0.jpg";	
			ipath = reDo+"/"+PageData[real_xxx][1]+"/B_0.jpg";	
			$('#sns_cover').html("<img src="+tp_path+" width='100' height='133' />");
			$('.ui-widget-overlay').css('z-index','9000');
			$('.ui-front').css('z-index','9000');
			$('.ui-dialog').css('z-index','9000');
		}
		function send_sms() {
			location.href="sms://?body="+encodeURIComponent(document.sns_form.sns_contetns.value)+"\n"+bconnectURL;

			$('#dialog').dialog('destroy');
		}
		function send_email() {
			
			var body = encodeURIComponent(bconnectURL+"<BR>"+document.sns_form.sns_contetns.value);
			location.href="mailto:?subject="+encodeURIComponent(booknameUTF)+"&body="+body;
			
			$('#dialog').dialog('destroy');
		}
		var sns_str;
		var accessToken;
		/*
		window.fbAsyncInit = function() {
			FB.init({
				appId:fb_app_id, 
				cookie : true,
				xfbml: true,
				version : 'v2.2'
			});
			
		};
		
		// Load the SDK asynchronously
		 (function(d, s, id){
			 var js, fjs = d.getElementsByTagName(s)[0];
			 if (d.getElementById(id)) {return;}
			 js = d.createElement(s); js.id = id;
			 js.src = "//connect.facebook.net/en_US/sdk.js";
			 fjs.parentNode.insertBefore(js, fjs);
		   }(document, 'script', 'facebook-jssdk'));
		
		*/
		function print_r(array) {
			var str;
			for(var i in array) {
			str += i+':'+array[i]+'\n'
			}
			return str;
		}

		function send_facebook() {
			var surl = location.href;
			window.open("https://www.facebook.com/sharer/sharer.php?u="+surl);
			return;
			if(fb_app_id.length > 0) {
				$('#sloader').show();
				FB.getLoginStatus(function(response) {
					if (response.status === 'connected') {
						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);
							};
						}

						accessToken = response.authResponse.accessToken;
						var text  = encodeURIComponent(document.sns_form.sns_contetns.value) + "\n" + bconnectURL;
						var canv = document.createElement("canvas");
						canv.setAttribute("id", "myCanvas");
						document.body.appendChild(canv);
						$('#myCanvas').attr('width',bWidth);
						$('#myCanvas').attr('height',bHeight);
						
						var img = new Image();
						img.width = bWidth;
						img.height = bHeight;
						img.src = ipath;

						img.onload = function () {
							try{
								var context = canv.getContext("2d");
								context.drawImage(img,0,0, canv.width, canv.height);	
								var c = canv.toDataURL('image/jpeg');
								var encodeIMG = c.substring(c.indexOf(',')+1, c.length);
								var decodeIMG = Base64Binary.decode(encodeIMG);
								var boundary = '----ThisIsTheBoundary1234567890';
								
								// let's encode our image file, which is contained in the var
								var formData = '--' + boundary + '\r\n'
								formData += 'Content-Disposition: form-data; name="source"; filename="cover.jpg"\r\n';
								formData += 'Content-Type: image/jpeg\r\n\r\n';
								for ( var i = 0; i < decodeIMG.length; ++i )
								{
									formData += String.fromCharCode( decodeIMG[ i ] & 0xff );
								}

								formData += '\r\n';
								formData += '--' + boundary + '--\r\n';
								
								var xhr = new XMLHttpRequest();
								xhr.open( 'POST', 'https://graph.facebook.com/me/photos?message='+text+'&access_token=' + accessToken, true );
								xhr.onload = xhr.onerror = function() {
									console.log( xhr.responseText );
									$('#dialog').dialog('destroy');
								};
								xhr.setRequestHeader( "Content-Type", "multipart/form-data; boundary=" + boundary );
								xhr.sendAsBinary( formData );
								$('#sloader').hide();
								alert('facebook 전송 완료');
								$('#dialog').dialog('destroy');
								$('#myCanvas').remove();
							} catch(e) {
								FB.api('/me/feed','post', { message: text , picture: ipath, source:ipath, description:'', link:bconnectURL}, function(response2) {
									if(!response2 || response2.error) {
										alert(print_r(response2.error));
									} else {
										$('#sloader').hide();
										alert('facebook 전송 완료');
										$('#dialog').dialog('destroy');
									}
								});
							}
						};
						$('#sloader').hide();
					} else {
						alert('facebook 로그인후 이용가능합니다.\n팝업창차단시 팝업창허용후 이용가능');
						$('#sloader').hide();
						FB.login(function(response) {
							var fbname;
							accessToken = response.authResponse.accessToken;
							FB.api('/me', function(user) {
								fbname = user.name;
								alert('로그인 되었습니다.\n페이스북 버튼을 터치 하시면 전송 가능 합니다.');
							});
						}, {scope: 'publish_stream, user_likes'});
					}
				});
			} else {
				$('#sloader').hide();
				alert('facebook 서비스 준비중 입니다.');
				return;
			}
		}
	
		function send_twitter() {	
			var text  = document.sns_form.sns_contetns.value + "\n\n[ebook보기]\n";
			window.open("https://twitter.com/intent/tweet?url="+encodeURIComponent(bconnectURL)+"&text="+encodeURIComponent(text),'twitter','width='+$(window).width()+',height='+$(window).height());
			$('#dialog').dialog('destroy');
		}

		function send_me2day() {
			var text  = document.sns_form.sns_contetns.value + ":"+encodeURIComponent(bconnectURL);
			window.open("http://me2day.net/plugins/mobile_post/new?new_post[body]="+text+"&redirect_url="+ipath,'me2day','width='+$(window).width()+',height='+$(window).height());
			$('#dialog').dialog('destroy');
		}
		

		var kakao_init = false;
		var ka_app_id = "YOUR_KAKAO_KEY";
		if(ka_app_id && ka_app_id != "YOUR_KAKAO_KEY")
		{
			(function(d, s, id){
				 var js, fjs = d.getElementsByTagName(s)[0];
				 if (d.getElementById(id)) {return;}
				 js = d.createElement(s); js.id = id;
				 js.src = "//developers.kakao.com/sdk/js/kakao.min.js";
				 fjs.parentNode.insertBefore(js, fjs);
			}(document, 'script', 'kakao-jssdk'));
		}
		function send_kakaotalk() {
			if(!ka_app_id || ka_app_id == 'YOUR_KAKAO_KEY')
			{
				alert('카카오톡 공유가 설정되지 않았습니다');
				return;
			}
			if(!kakao_init){Kakao.init(ka_app_id); kakao_init = true;}

			var text  = document.sns_form.sns_contetns.value + "\n" + ipath;
			Kakao.Link.sendTalkLink({
				label:  document.sns_form.sns_contetns.value,
				image: {
					src: ipath,
					width: '200',
					height: '270'
				},
				webLink: {
					text : '[ 책보기 ]',
					url : bconnectURL
				}
			});
			$('#dialog').dialog('destroy');
		}

		function wrapWindowByMask(){
			//화면의 높이와 너비를 구한다.
			var maskHeight = $(document).height();  
			var maskWidth = $(window).width();  

			//마스크의 높이와 너비를 화면 것으로 만들어 전체 화면을 채운다.
			$('#mask').css({'width':maskWidth,'height':maskHeight});  

			//애니메이션 효과
			$('#mask').fadeIn(1000);      
			$('#mask').fadeTo("slow",0.8);    
		}