Hi,
We tested this code, and found IE remove the type='button' automatically:
function testit()
{
var editor=document.getElementById("<%=Editor1.ClientID%>");
editor.GetDocument().body.innerHTML="<button type='button'>hello</button>";
alert(editor.GetDocument().body.innerHTML);
}
I think that is a bug of IE, and we will think more to find a way to prevent it.
Regards,
Terry