revision:
The removeAttributeNS() method of the Element interface removes the specified attribute from an element.
removeAttributeNS(namespace, attrName)
Parameters:
namespace : a string that contains the namespace of the attribute.
attrName : a string that names the attribute to be removed from the current node./p>
// Given:
// <div id="div1" xmlns:special="http://www.mozilla.org/ns/specialspace"
// special:specialAlign="utterleft" width="200px" />
d = document.getElementById("div1");
d.removeAttributeNS("http://www.mozilla.org/ns/specialspace", "specialAlign");
// Now: <div id="div1" width="200px" />