ajax html parse

function processData(responseText, responseStatus) {

 if (responseStatus==200) {

    alert(responseText);

    var str = responseText.match(/<!--ajaxcontentbegin-->(.|"s|"r|"r"n)*?<!--ajaxcontentend-->/gim);

    alert(str);

    document.getElementById("container").innerHTML = str;

    document.getElementById("localInput").value = document.getElementById("someInput").value

 } else {

    alert(responseStatus );

 }

}

var myRequest = new ajaxObject('target.htm', processData);