var myLeisteId = document.getElementById("leiste");
var myInhaltRahmenId = document.getElementById("inhalt-rahmen");

function CloseMenu() {
	var numberofmenus = 8;
	var invisiblemenustring;
	var i;
	  for (i = 1; i <= numberofmenus; i++)
	  {
			 invisiblemenustring = "submenu" + i;
			 document.getElementById(invisiblemenustring).style.display = 'none';
	  }
}


function ChangeVisibility(visiblemenu) 
{
  var numberofmenus = 8;
  var visiblemenustring = "submenu" + visiblemenu;
  var invisiblemenustring;
  var i;
  // Zum Debuggen
  // window.prompt(visiblemenustring,"");
  for (i = 1; i <= numberofmenus; i++)
  {
    if (i == visiblemenu)
    {
        if(document.getElementById(visiblemenustring).style.display == 'block')
	{
	   document.getElementById(visiblemenustring).style.display = 'none';
	}
	else
	{
	  document.getElementById(visiblemenustring).style.display = 'block';
	}
     }
     else
     {
         invisiblemenustring = "submenu" + i;
         document.getElementById(invisiblemenustring).style.display = 'none';
     }
  }
}