Creating HTML elements dynamically

Creating HTML elements dynamically:

var tt = document.createElement("div");

var t = document.createElement("table");

var tb = document.createElement("tbody");

var ntr = document.createElement("tr");

var ntd = document.createElement("td");

ntdtxt = document.createTextNode("dynamic text");

var xyz = document.createElement("input");

xyz.setAttribute("name","parameter");

xyz.setAttribute("value","");

xyz.setAttribute("type","checkbox");

or

xyz.setAttribute("type","text");

or

xyz.setAttribute("type","radiobutton");

xyz.setAttribute("function()","group(this)");

or

xyz.onclick=function(){group(this)};

td.appendChild(xyz);