public static String getURI(Element elem) {
		Attr attr = elem.getAttributeNodeNS(URI, SRC_ATTR);
		return attr != null ? attr.getValue() : LocationUtils.UNKNOWN_STRING;
	}
public static String getURI ( Element elem ) { Attr attr = elem . getAttributeNodeNS ( URI , SRC_ATTR ) ; return attr != null ? attr . getValue ( ) : LocationUtils . UNKNOWN_STRING ; }
Returns the URI of an element (DOM flavor)

@param elem
the element that holds the location information
@return the element's URI or "<code>[unknown location]</code>" if
<code>elem</code> has no location information.