how to make DWRUtil.addRows not output html source code?

If i want to put a inputbox into a row in the function of  DWRUtil.addRows, I use the code below:
    DWRUtil.addRows(id, ["<input type='text' />" ]);
 When we browse the result in a browser, we can see the source code of "<input type='text'/>" instead of the inputbox. how to resolve it ?

OK. We use "DWRUtil.setEscapeHtml(false);" before we invoke DWRUtil.addRows();