function navi(){ 

  //KONSTRUKTOR
  this.navi = function(){
  } //ende Konstruktor

  //Show Sub Navigation
  this.showSubNavi = function(aElement){
   parent.document.getElementById('subnavi_bg').style.display = "block" ;      
  } // ende hideSubNavi


  //Hide Sub Navigation
  this.hideSubNavi = function(aElement){
   parent.document.getElementById('subnavi_bg').style.display = "none" ;
  } // ende hideSubNavi

this.navi();
}