Manipulate XML string from iFrame

// get iframe
var iframe = document.getElementById("myIframeId");
var xDoc = null;
// get XmlDocument
// for IE
xDoc = iframe.contentWindow.document.XMLDocument;
// for firefox, chrome, safari,
xDoc = iframe.contentDocument.documentElement;

// Manipulation XmlDocument or XML element node
xDoc.getElementById("elmId");
xDoc.getElementsByTagName("div")[0];
xDoc.getAttribute("name");
xDoc.innerHtml;
xDoc.getElementById("inputTxtId").value;

// for IE
xDoc.innerText;


// for firefox, chrome...
xDoc.textContent;