var object = object.namedItem(name);
Returns an object of type DOM NodeDOM Node
The following example shows how to use the namedItem method to retrieve a div and change its innerText property.
<div id="oDIV1">This text will not change.</div> <div id="oDIV2">This text will change.</div> <button onclick="document.all.namedItem('oDIV2').innerHTML='Changed!';"> Change Option </button>
Windows Internet Explorer 8 and later. In IE8 Standards mode, the namedItem method does not return collections if more than one named item is found; instead, it returns the first case-insensitive matched Defining Document Compatibility. The namedItem method was introduced in Microsoft Internet Explorer 6. The namedItem method does not return collections if more than one named item is found; instead, it returns the first case-insensitive matched element. This method first searches for an object with a matching id attribute. If a match is not found, the method searches for an object with a matching name attribute, but only on those elements that are allowed a name attribute.
There are no standards that apply here.
Microsoft Developer Network: [Windows Internet Explorer API reference Article]