Convert closed question TextBox into TextArea

Challenge

In Single question or Multi Question, a textbox might not enough for respondent to give a long answer.
As a questionnaire creator
I want to convert a textbox into a textarea.

Code

quest.onInit = function()
{
    $.each($("input[type='text']"), function()
    {
        var inputName = this.name;
        var inputValue = this.value;
        var answerOptionValue = inputName.slice(inputName.lastIndexOf(".") + 1);

        if ($("input[value='" + answerOptionValue + "']").attr("checked"))
            $(this).replaceWith("<textarea rows='8' cols='55' name='" + inputName + "'>" + inputValue + "</textarea>");
        else
            $(this).replaceWith("<textarea rows='8' cols='55' disabled = 'disabled'  name='" + inputName + "'>" + inputValue + "</textarea>");
    });
}