js/core/Component.js
function (domNode) {
                if (domNode.localName) {
                    return domNode.localName;
                }

                var localName = LocalNameCache[domNode.tagName];
                if (localName) {
                    return localName;
                }
                var st = domNode.tagName.split(":");

                LocalNameCache[domNode.tagName] = st[st.length - 1];


                return LocalNameCache[domNode.tagName];
            }
function (domNode) {
                if (domNode.localName) {
                    return domNode.localName;
                }

                var localName = LocalNameCache[domNode.tagName];
                if (localName) {
                    return localName;
                }
                var st = domNode.tagName.split(":");

                LocalNameCache[domNode.tagName] = st[st.length - 1];


                return LocalNameCache[domNode.tagName];
            }
function ( domNode ) { if ( domNode . localName ) { return domNode . localName ; } var localName = LocalNameCache [ domNode . tagName ] ; if ( localName ) { return localName ; } var st = domNode . tagName . split ( ":" ) ; LocalNameCache [ domNode . tagName ] = st [ st . length - 1 ] ; return LocalNameCache [ domNode . tagName ] ; }
determinate the local-name of a DomNode

@param domNode
determinate the local - name of a DomNode