diff --git a/favicon.ico b/favicon.ico
new file mode 100644
index 0000000..94f7ef2
Binary files /dev/null and b/favicon.ico differ
diff --git a/main.html b/main.html
index b5c8678..e799114 100644
--- a/main.html
+++ b/main.html
@@ -39,13 +39,13 @@
                                 </a>
                             </li>
                             <li>
-                                <a href="javascript:openfile()">
+                                <a href="javascript:showmodal()">
                                     <span class="red-168-text">O</span>pen
                                     <span class="tui-shortcut">F5</span>
                                 </a>
                             </li>
                             <li>
-                                <a href="javascript:savefile()">
+                                <a href="javascript:showmodal()">
                                     <span class="red-168-text">S</span>ave
                                     <span class="tui-shortcut">F6</span>
                                 </a>
@@ -76,48 +76,48 @@
                     <div class="tui-dropdown-content">
                         <ul>
                             <li>
-                                <a href="javascript:">
+                                <a href="javascript:showmodal();">
                                     <span class="red-168-text">C</span>ut
                                     <span class="tui-shortcut">Ctrl+X</span>
                                 </a>
                             </li>
                             <li>
-                                <a href="javascript:">
+                                <a href="javascript:showmodal()">
                                     C<span class="red-168-text">o</span>py
                                     <span class="tui-shortcut">Ctrl+C</span>
                                 </a>
                             </li>
                             <li>
-                                <a href="javascript:">
+                                <a href="javascript:showmodal()">
                                     <span class="red-168-text">P</span>aste
                                     <span class="tui-shortcut">Ctrl+P</span>
                                 </a>
                             </li>
                             <li>
-                                <a href="javascript:">
+                                <a href="javascript:showmodal()">
                                     <span class="red-168-text">S</span>elect all
                                 </a>
                             </li>
                             <li>
-                                <a href="javascript:">
+                                <a href="javascript:showmodal()">
                                     <span class="red-168-text">D</span>elete
                                 </a>
                             </li>
                             <div class="tui-black-divider"></div>
                             <li>
-                                <a href="/index.html">
+                                <a href="javascript:showmodal()">
                                     <span class="red-168-text">F</span>ind
                                     <span class="tui-shortcut">F3</span>
                                 </a>
                             </li>
                             <li>
-                                <a href="/index.html">
+                                <a href="javascript:showmodal()">
                                     <span class="red-168-text">R</span>eplace
                                     <span class="tui-shortcut">Alt+F3</span>
                                 </a>
                             </li>
                             <li>
-                                <a href="/index.html">
+                                <a href="javascript:showmodal()">
                                     <span class="red-168-text">G</span>oto
                                     <span class="tui-shortcut">Ctrl+G</span>
                                 </a>
@@ -159,12 +159,27 @@
 			     <div class="tui-dropdown-content">
 			     <ul>
 			        <li>
-					<a href="javascript:toSyntax('intel')">
-				     <span id="intel">√</span> <span class="red-168-text">I</span>ntel
+				     <a href="javascript:toSyntax('nasm')">
+				     <span id="nasm">√</span> <span class="red-168-text">N</span>asm
 				   </a>
 			        </li>
 			        <li>
-					<a href="javascript:toSyntax('att')">
+				     <a href="javascript:toSyntax('intel')">
+				     <span id="intel">&nbsp;</span> <span class="red-168-text">I</span>ntel
+				   </a>
+			        </li>
+			        <li>
+				     <a href="javascript:toSyntax('masm')">
+				     <span id="masm">&nbsp;</span> <span class="red-168-text">M</span>asm
+				   </a>
+			        </li>
+			        <li>
+				     <a href="javascript:toSyntax('gas')">
+				     <span id="gas">&nbsp;</span> <span class="red-168-text">G</span>as
+				   </a>
+			        </li>
+			        <li>
+				     <a href="javascript:toSyntax('att')">
 				     <span id="att">&nbsp;</span> <span class="red-168-text">A</span>T&T
 				   </a>
 			        </li>
@@ -198,10 +213,28 @@
                 </li>
                 <li class="tui-dropdown">
                     <span class="red-168-text">H</span>elp
+                    <div class="tui-dropdown-content">
+                        <ul>
+                            <li>
+                                <a href="javascript:showmodal()">
+                                    <span class="red-168-text">I</span>nterface
+                                </a>
+			    </li>
+		        </ul>
+	            </div>
                 </li>
             </ul>
         </nav>
 
+	<div id="modal" class="tui-window red-168 left-align" style="left: 40%; margin: 0px auto; top: 50%; z-index: 10; position: fixed; visibility:hidden"> 
+		<fieldset class="tui-fieldset">
+                    <legend class="red-255 yellow-255-text">Alert</legend>
+		    Function not implemented<br><br>
+	            <div class="tui-divider"></div><br>
+		    <button class="tui-button cyan-168 white-255-text tui-modal-close-button right" data-modal="modal" onclick="javascript:closemodal()">close</button>
+	        </fieldset>
+        </div>
+
         <!-- Edit panel -->                                                                                                               
         <div class="tui-window full-width tui-no-shadow" style="margin-top: 23px;height:60%">                                                       
             <fieldset class="tui-fieldset" style="height:100%">                                                                                               
@@ -211,7 +244,7 @@
                 <span class="tui-fieldset-text right" style="margin-bottom: -5px;" id="syntax">&nbsp;Syntax:Intel&nbsp;</span>                                         
 		<textarea id="editor" class="tui-textarea full-width" style="overflow: scroll;height:100%;width:100%"></textarea></div> 
 
-	<div class="tui-window tui-no-shadow" style="height:20%;width:1000px">                                                       
+	<div class="tui-window tui-no-shadow" style="height:20%;width:940px">                                                       
             <fieldset class="tui-fieldset" style="height:100%">                                                                                               
                 <legend class="center">Results</legend>                                                                     
 		<div class="" style="overflow: scroll;height:100%;width:100%"><pre id="result" style="margin-top: -5px;"></pre></div>
@@ -233,7 +266,7 @@
         </div>  
 
         <!-- Status bar -->
-        <div class="tui-statusbar absolute">
+        <div class="tui-statusbar relative">
             <ul>
                 <li><a href="#!"><span class="red-168-text">F1</span> Help</a></li>
                 <li><a href="javascript:exportfile()"><span class="red-168-text">F2</span> Save</a></li>
@@ -249,12 +282,22 @@
 </body>
 <script>
 var type='binary';
-var syntax='intel';
+var syntax='nasm';
 var filename='';
 var zones = [];
 
 newfile();
 
+function closemodal()
+{
+	$("#modal").css("visibility","hidden");
+}
+
+function showmodal()
+{
+	$("#modal").css("visibility","visible");
+}
+
 function setFilename(name){
 	$("#filename").html(name);
 	filename=name;
@@ -264,15 +307,33 @@ function toSyntax(atype)
 {
 	$("#att").html("&nbsp;");	
 	$("#intel").html("&nbsp;");	
+	$("#nasm").html("&nbsp;");	
+	$("#masm").html("&nbsp;");	
+	$("#gas").html("&nbsp;");	
 	if (atype=="att")
 	{
 		$("#att").html("√");	
 		$("#syntax").html("&nbsp;Syntax:AT&T&nbsp;");
 	}	
-	else
+	else if (atype=="intel")
 	{
 		$("#intel").html("√");	
 		$("#syntax").html("&nbsp;Syntax:Intel&nbsp;");
+	}	
+	else if (atype=="masm")
+	{
+		$("#masm").html("√");	
+		$("#syntax").html("&nbsp;Syntax:Masm&nbsp;");
+	}	
+	else if (atype=="gas")
+	{
+		$("#gas").html("√");	
+		$("#syntax").html("&nbsp;Syntax:Gas&nbsp;");
+	}	
+	else
+	{
+		$("#nasm").html("√");	
+		$("#syntax").html("&nbsp;Syntax:Nasm&nbsp;");
 	}
 	syntax=atype;
 }
@@ -378,13 +439,13 @@ function makebin(allzones)
 function dumpall(allzones)
 {
 	if (type=="binary")
-		var output = '<table class="">';
+			var output = '<table class="tui-table striped-purple"><thead><tr><th>Address</th><th>Hexadecimal</th><th>Ascii</th></thhead><tbody>';
 	else
 		var output = '';
 	for (const zone of allzones)
 		output+=dump(zone);
 	if (type=="binary")
-		output += '</table>';
+			output += '</tbody></table>';
 	showresult(output);
 }
 
@@ -398,7 +459,7 @@ function dump(zone) {
          	case 'binary':
 			var address=zone.offset;
 		        for (var offset = 0; offset < mcLen; offset += 16) {
-			     output += "<td>"+toHex(address,zone.code)+"</td><td>&nbsp;|&nbsp;</td><td>";
+			     output += "<td>"+toHex(address,zone.code)+"</td><td>";
 			     var ascii='';
 			     for (var i = offset; i < offset + 16 && i < mcLen; i++) {
 			          if (zone.asm[i]>31)
@@ -407,7 +468,7 @@ function dump(zone) {
 		                  	ascii += '.';
 			          output += hexByte(zone.asm[i]) + " ";
 			     }
-		             output += "</td><td>&nbsp;|&nbsp;</td><td>"+ascii+"</td></tr>";
+		             output += "</td><td>"+ascii+"</td></tr>";
 			     address+=16;	
 		        }
                         break;
@@ -456,6 +517,7 @@ function make()
 	var org=0;
 	var type=32;
 	var status=true;
+	zones=[];
 	showresult('');
 	while (assembly.length!=0)
 	{
@@ -553,6 +615,12 @@ function assemble(zone)
         a = new ks.Keystone(ks.ARCH_X86, realtype);
 	if (syntax=="att")
 	        a.option(ks.OPT_SYNTAX, ks.OPT_SYNTAX_ATT);
+	else if (syntax=="masm")
+	        a.option(ks.OPT_SYNTAX, ks.OPT_SYNTAX_MASM);
+	else if (syntax=="intel")
+	        a.option(ks.OPT_SYNTAX, ks.OPT_SYNTAX_INTEL);
+	else if (syntax=="gas")
+	        a.option(ks.OPT_SYNTAX, ks.OPT_SYNTAX_GAS);
 	else
 	        a.option(ks.OPT_SYNTAX, ks.OPT_SYNTAX_NASM);
 	try