function set_bookmark() {
  if (navigator.appName == "Microsoft Internet Explorer") {
    window.external.AddFavorite('http://www.adventureguide.ch','Schweizer Sport- und Adventure Guide')
  }
}

function fenster_werbung() {
	addWindow = window.open("","werbefenster","width=900,height=800,resizable=1,status=1,menubar=0,scrollbars=1,fullscreen=0");
	addWindow.focus() 
      return true;
}

function fenster_blog() {
	addWindow = window.open("","blogfenster","width=780,height=800,resizable=0,status=0,menubar=0,scrollbars=1,fullscreen=0");
	addWindow.focus() 
      return true;
}

function fenster_datum() {
	addWindow = window.open("","datumsfenster","width=200,height=215,resizable=0,status=0,menubar=0,scrollbars=0,fullscreen=0");
	addWindow.focus() 
      return true;
}