<body>
<div id="fieldset">
</div>
<input type="button" id="b1" value="Press" onclick="fieldset()">
</body>
function fieldset()
{
var element=document.createElement("fieldset");
var text=document.createTextNode("EMP-ID:");
var element2=document.createElement("input");
element2.setAttribute("type","text");
element.appendChild(text);
element.appendChild(element2);
document.getElementById("fieldset").appendChild(element);
}
fieldset
{
font-family:comic sans ms;
color:green;
font-weight:bold;
font-size:30px;
}