function treemenu(id,idBlok,img_dir,img_min,img_plus,img_open,img_close){
  if(document.getElementById(idBlok).style.display == 'block'){
    document.getElementById(idBlok).style.visibility = 'hidden';
    document.getElementById(idBlok).style.display = 'none';
		/*
    document.getElementById(id).innerHTML = 
      "<img src=\""+img_dir+img_plus+"\"><img src='"+img_dir+img_close+"' class=\"treemenu\">";
		*/
    document.getElementById(id).innerHTML =
      "<img class=\"treemenuImg\" src=\""+img_dir+img_plus+"\">";
  }else{
    document.getElementById(idBlok).style.visibility = 'visible';
    document.getElementById(idBlok).style.display = 'block';
		/*
    document.getElementById(id).innerHTML = 
       "<img src=\""+img_dir+img_min+"\"><img src='"+img_dir+img_open+"' class=\"treemenu\">";
		*/
    document.getElementById(id).innerHTML =
       "<img class=\"treemenuImg\" src=\""+img_dir+img_min+"\">";
  }
}