public virtual void Init()
		{
			xmiDocument=new XmlDocument();
			mscGenerator=new Generator(null);
			documentBuilder=new XmlDocumentBuilder();
			namespaceManager=new XmlNamespaceManager(xmiDocument.NameTable);
			namespaceManager.AddNamespace(XmiElements.UML_NAMESPACE_PREFIX,XmiElements.UML_NAMESPACE_URI);
			namespaceManager.AddNamespace(XmiElements.XMI_NAMESPACE_PREFIX,XmiElements.XMI_NAMESPACE_URI);
			sequenceDiagram=new MSC();
		}
 public void createInteractionElement(XmlDocument xmiDocument, MSC interaction)
 {
     XmlElement interactionElement=createXmiElement(SequenceChartConstant.INTERACTION,xmiDocument);
     String interactionName=interaction.
 }