Javascript Create Random GUID

Javascript Create Random GUID.html

<button type="button" class="btn btn-default btn-xs" onclick="guid()" title="generate a random guid">Generate Random Guid</button>
<br/>
<textarea id="guidtxt" cols="60"></textarea>
<script>
        function guid() {
             var guid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {var r = Math.random()*16|0,v=c=='x'?r:r&0x3|0x8;return v.toString(16);});
             $("#guidtxt").val(guid);
             $("#guidtxt").select();
        }
</script>