diff --git a/index.html b/index.html
index 13828dc..df9422f 100644
--- a/index.html
+++ b/index.html
@@ -151,6 +151,15 @@
 										<input id="openPass" type="password" class="form-control" placeholder="Password" required>
 										<input id="openPassConfirm" type="password" class="form-control" placeholder="Password confirm" required>
 										<br>
+										<div>
+											<a href="javascript:;" class="optionsCollapse"><div class="well well-sm"><span class="glyphicon glyphicon-collapse-down" id="glyphcollapse"></span> Advanced Options</div></a>
+											<div class="hidden optionsAdvanced">
+												<label>Segregated Witness Address</label>
+												<p class="checkbox">
+													<label><input type="checkbox" id="walletSegwit" class="checkbox-inline"> Use a segwit address instead of a regular address.</label>
+												</p>
+											</div>
+										</div>
 										<div id="openLoginStatus" class="alert alert-danger hidden"></div>
 										<button id="openBtn" class="btn btn-primary" type="submit">Submit</button>
 									</form>
@@ -557,9 +566,9 @@
 						<div class="hidden alert alert-info" id="redeemFromAddress"></div>
 
 						<div>
-							<a href="javascript:;" id="optionsCollapse"><div class="well well-sm"><span class="glyphicon glyphicon-collapse-down" id="glyphcollapse"></span> Advanced Options</div></a>
+							<a href="javascript:;" class="optionsCollapse"><div class="well well-sm"><span class="glyphicon glyphicon-collapse-down" id="glyphcollapse"></span> Advanced Options</div></a>
 
-							<div class="hidden" id="optionsAdvanced">
+							<div class="hidden optionsAdvanced">
 
 								<label>Clear Inputs</label>
 								<p class="checkbox">
diff --git a/js/coin.js b/js/coin.js
index 7df8fd1..20294f5 100644
--- a/js/coin.js
+++ b/js/coin.js
@@ -876,7 +876,7 @@
 		}
 
 		/* add unspent to transaction */
-		r.addUnspent = function(address, callback){
+		r.addUnspent = function(address, callback, script){
 			var self = this;
 			this.listUnspent(address, function(data){
 				var s = coinjs.script();
@@ -900,9 +900,9 @@
 					var u = xmlDoc.getElementsByTagName("unspent_"+i)[0]
 					var txhash = (u.getElementsByTagName("tx_hash")[0].childNodes[0].nodeValue).match(/.{1,2}/g).reverse().join("")+'';
 					var n = u.getElementsByTagName("tx_output_n")[0].childNodes[0].nodeValue;
-					var script = u.getElementsByTagName("script")[0].childNodes[0].nodeValue;
+					var scr = script || u.getElementsByTagName("script")[0].childNodes[0].nodeValue;
 
-					self.addinput(txhash, n, script);
+					self.addinput(txhash, n, scr);
 
 					value += u.getElementsByTagName("value")[0].childNodes[0].nodeValue*1;
 					total++;
diff --git a/js/coinbin.js b/js/coinbin.js
index 59f0a09..597fe41 100644
--- a/js/coinbin.js
+++ b/js/coinbin.js
@@ -28,17 +28,26 @@ $(document).ready(function() {
 
 					coinjs.compressed = true;
 					var keys = coinjs.newKeys(s);
+					var address = keys.address;
+					var wif = keys.wif;
+					var pubkey = keys.pubkey;
+					var privkeyaes = CryptoJS.AES.encrypt(keys.wif, pass);
 
-					$("#walletAddress").html(keys.address);
-					$("#walletHistory").attr('href',explorer_addr+keys.address);
+					if($("#walletSegwit").is(":checked")){
+						var sw = coinjs.segwitAddress(pubkey);
+						address = sw.address;
+					}
+
+					$("#walletAddress").html(address);
+					$("#walletHistory").attr('href',explorer_addr+address);
 
 					$("#walletQrCode").html("");
 					var qrcode = new QRCode("walletQrCode");
-					qrcode.makeCode("bitcoin:"+keys.address);
+					qrcode.makeCode("bitcoin:"+address);
 
-					$("#walletKeys .privkey").val(keys.wif);
-					$("#walletKeys .pubkey").val(keys.pubkey);
-					$("#walletKeys .privkeyaes").val(CryptoJS.AES.encrypt(keys.wif, pass));
+					$("#walletKeys .privkey").val(wif);
+					$("#walletKeys .pubkey").val(pubkey);
+					$("#walletKeys .privkeyaes").val(privkeyaes);
 
 					$("#openLogin").hide();
 					$("#openWallet").removeClass("hidden").show();
@@ -76,6 +85,7 @@ $(document).ready(function() {
 		$("#walletKeys .privkey").val("");
 		$("#walletKeys .pubkey").val("");
 
+		$("#openLoginStatus").html("").hide();
 	});
 
 	$("#walletShowKeys").click(function(){
@@ -111,6 +121,12 @@ $(document).ready(function() {
 
 		thisbtn.attr('disabled',true);
 
+		var script = false;
+		if($("#walletSegwit").is(":checked")){
+			var sw = coinjs.segwitAddress($("#walletKeys .pubkey").val());
+			scrip = sw.redeemscript;			
+		}
+
 		tx.addUnspent($("#walletAddress").html(), function(data){
 
 			var dvalue = (data.value/100000000).toFixed(8) * 1;
@@ -124,7 +140,7 @@ $(document).ready(function() {
 
 				// clone the transaction with out using coinjs.clone() function as it gives us trouble
 				var tx2 = coinjs.transaction(); 
-				var txunspent = tx2.deserialize(tx.serialize()); 
+				var txunspent = tx2.deserialize(tx.serialize());
 
 				// then sign
 				var signed = txunspent.sign($("#walletKeys .privkey").val());
@@ -150,7 +166,8 @@ $(document).ready(function() {
 			}
 
 			$("#walletLoader").addClass("hidden");
-		});
+
+		}, script);
 	});
 
 	$("#walletSendBtn").click(function(){
@@ -246,7 +263,9 @@ $(document).ready(function() {
 
 	function checkBalanceLoop(){
 		setTimeout(function(){
-			walletBalance();
+			if($("#walletLoader").hasClass("hidden")){
+				walletBalance();
+			}
 			checkBalanceLoop();
 		},45000);
 	}
@@ -1015,13 +1034,13 @@ $(document).ready(function() {
 		$("#transactionFee").val((fee>0)?fee:'0.00');
 	}
 
-	$("#optionsCollapse").click(function(){
-		if($("#optionsAdvanced").hasClass('hidden')){
-			$("#glyphcollapse").removeClass('glyphicon-collapse-down').addClass('glyphicon-collapse-up');
-			$("#optionsAdvanced").removeClass("hidden");
+	$(".optionsCollapse").click(function(){
+		if($(".optionsAdvanced",$(this).parent()).hasClass('hidden')){
+			$(".glyphcollapse",$(this).parent()).removeClass('glyphicon-collapse-down').addClass('glyphicon-collapse-up');
+			$(".optionsAdvanced",$(this).parent()).removeClass("hidden");
 		} else {
-			$("#glyphcollapse").removeClass('glyphicon-collapse-up').addClass('glyphicon-collapse-down');
-			$("#optionsAdvanced").addClass("hidden");
+			$(".glyphcollapse",$(this).parent()).removeClass('glyphicon-collapse-up').addClass('glyphicon-collapse-down');
+			$(".optionsAdvanced",$(this).parent()).addClass("hidden");
 		}
 	});
 
diff --git a/sha1sum b/sha1sum
index 46c71ef..a45746c 100644
--- a/sha1sum
+++ b/sha1sum
@@ -1,9 +1,9 @@
----- Version 1.3 2017.09.10 ----
+---- Version 1.3 2017.09.16 ----
 77e4519962e2f6a9fc93342137dbb31c33b76b04  ./js/aes.js
 3a09a8fc0cfe828b57fc798d668234d0490ee1a6  ./js/bootstrap-datetimepicker.min.js
 253711c6d825de55a8360552573be950da180614  ./js/bootstrap.min.js
-7f515cda8dae2ba8217e4f9626d35f29a6c8933f  ./js/coinbin.js
-3e7b9b1a30412f827d4709a53014d0b6f06103f0  ./js/coin.js
+618db47822494e730a8fa93cfab985332872b93e  ./js/coinbin.js
+b2b1b00455dd2d1f168dc68b6efdbb1de817b5d0  ./js/coin.js
 988565bc2cb402d63ed5c5fd7ff47c4278efc2c5  ./js/collapse.js
 9ba5ede3d7f9d4c8fd623395f196adfdcf7e970f  ./js/crypto-min.js
 f7c09f2f5a721371e7d478050119f7e2d58e3ef9  ./js/crypto-sha256-hmac.js
@@ -30,4 +30,4 @@ de51a8494180a6db074af2dee2383f0a363c5b08  ./fonts/glyphicons-halflings-regular.s
 278e49a86e634da6f2a02f3b47dd9d2a8f26210f  ./fonts/glyphicons-halflings-regular.woff
 44bc1850f570972267b169ae18f1cb06b611ffa2  ./fonts/glyphicons-halflings-regular.ttf
 d8a324a13501cd5705dc26b945fc8088f00907ae  ./README.md
-384db7d004aedfdcb4ce2fdb93edb8fa6df9c075  ./index.html
+cc101e4b9718116bb767f7cbd04cab816ca32b66  ./index.html