diff --git a/num_key/index.html b/num_key/index.html
index a8fae5e..b9078f8 100644
--- a/num_key/index.html
+++ b/num_key/index.html
@@ -7,10 +7,10 @@
 	</head>
 	<body>
 		<div>
-			<input id="text1" type="number" style="height:28px;width:98%;outline:none;border:1px solid #1AB6FF;padding-left:3px;"/>
+			<input id="text1" readonly="readonly" type="number" style="height:28px;width:98%;outline:none;border:1px solid #1AB6FF;padding-left:3px;"/>
 			<br />
 			<br />
-			<input id="text2" type="number" style="height:28px;width:98%;outline:none;border:1px solid #1AB6FF;padding-left:3px;"/>
+			<input id="text2" readonly="readonly" type="number" style="height:28px;width:98%;outline:none;border:1px solid #1AB6FF;padding-left:3px;"/>
 		</div>
 		<script type="text/javascript" src="keyboard.js"></script>
 		<script type="text/javascript">
