Adding A Table Row With Form Elements In Td

i'm trying to add a row to a table with form elements in the table. It almost works but instead of seeing my text field, i see the code of my text field. Here's my code :

var counter = 1;
function addInput(tableName)
{
var tbody = document.getElementById(tableName).getElementsByTagName("TBODY")[0];
var row = document.createElement("TR");
var td1 = document.createElement("TD");
td1.appendChild(document.createTextNode("<input type='text' name='myInputs[]'>"));
[Code]...