public   void   toWrite(String   mytitle,String   mycontent)
  { 
        
        Element   root=document.createElement( "trolleyId");   
        
        document.appendChild(root);   
        Element   title=document.createElement( "Title");   
        title.appendChild(document.createTextNode(mytitle));   
        root.appendChild(title);   
        Element   content=document.createElement( "Content");   
        content.appendChild(document.createTextNode(mycontent));   
        root.appendChild(content); 

  }