nav1 = new Image();
	nav1.src = "../data/grafiken/nav1-off.png";
	nav1on = new Image();
	nav1on.src = "../data/grafiken/nav1-on.png";

	nav2 = new Image();
	nav2.src = "../data/grafiken/nav2-off.png";
	nav2on = new Image();
	nav2on.src = "../data/grafiken/nav2-on.png";

	nav3 = new Image();
	nav3.src = "../data/grafiken/nav3-off.png";
	nav3on = new Image();
	nav3on.src = "../data/grafiken/nav3-on.png";

	nav4 = new Image();
	nav4.src = "../data/grafiken/nav4-off.png";
  nav4on = new Image();
	nav4on.src = "../data/grafiken/nav4-on.png";

	nav5 = new Image();
	nav5.src = "../data/grafiken/nav5-off.png";
  nav5on = new Image();
	nav5on.src = "../data/grafiken/nav5-on.png";

function on(name)
	{
        	document.images[name].src = eval(name + "on.src");
	}
function off(name)
	{
        	document.images[name].src = eval(name + ".src");
	}
function showhidebox(action1,action2,top,left,box,required)
{
  if (document.getElementById)
  { outerbox = document.getElementById(box);
    innerbox = document.getElementById("required");
  }
  else if (document.all)
  { outerbox = document.all(box);
    innerbox = document.all("required");
  }
  else if (document.layers)
  { outerbox = document.layers(box);
    innerbox = document.layers("required");
  }
  if (outerbox.style)
  { outerbox.style.visibility = action1;
    outerbox.style.display = action2;
    outerbox.style.top = top;
    outerbox.style.left = left;
    innerbox.value = required;
  }
  else
  { outerbox.visibility = action1;
    outerbox.display = action2;
    outerbox.top = top;
    outerbox.left = left;
    innerbox.value = required;
  }
}
function roadshow(action1,action2,top,left,box)
{
  if (document.getElementById)
  { outerbox = document.getElementById(box);
  }
  else if (document.all)
  { outerbox = document.all(box);
  }
  else if (document.layers)
  { outerbox = document.layers(box);
  }
  if (outerbox.style)
  { outerbox.style.visibility = action1;
    outerbox.style.display = action2;
    outerbox.style.top = top;
    outerbox.style.left = left;
  }
  else
  { outerbox.visibility = action1;
    outerbox.display = action2;
    outerbox.top = top;
    outerbox.left = left;
  }
}
function checkalldemo(action)
{
  if (document.getElementById)
  { outerbox = document.getElementById('demoprogramm1');
  	outerbox = document.getElementById('demoprogramm2');
  	outerbox = document.getElementById('demoprogramm3');
  	outerbox = document.getElementById('demoprogramm4');
  	outerbox = document.getElementById('demoprogramm5');
  	outerbox = document.getElementById('demoprogramm6');
  	outerbox = document.getElementById('demoprogramm7');
  	outerbox = document.getElementById('demoprogramm8');
  	outerbox = document.getElementById('demoprogramm9');
  }
  else if (document.all)
  { outerbox = document.all('demoprogramm1');
  	outerbox = document.all('demoprogramm2');
  	outerbox = document.all('demoprogramm3');
  	outerbox = document.all('demoprogramm4');
  	outerbox = document.all('demoprogramm5');
  	outerbox = document.all('demoprogramm6');
  	outerbox = document.all('demoprogramm7');
  	outerbox = document.all('demoprogramm8');
  	outerbox = document.all('demoprogramm9');
  }
  else if (document.layers)
  { outerbox = document.layers('demoprogramm1');
  	outerbox = document.layers('demoprogramm2');
  	outerbox = document.layers('demoprogramm3');
  	outerbox = document.layers('demoprogramm4');
  	outerbox = document.layers('demoprogramm5');
  	outerbox = document.layers('demoprogramm6');
  	outerbox = document.layers('demoprogramm7');
  	outerbox = document.layers('demoprogramm8');
  	outerbox = document.layers('demoprogramm9');
  }
  if (outerbox.style)
  { outerbox = "checked";
  }
  else
  { outerbox = "checked";
  }
}