function videoswitch()
{
 if (bandbreite == 45)
 {
  document.images.quality.src="/gfx/denkmaeler/d_isdn.gif";
  bandbreite = 80;
 }
 else
 {
  document.images.quality.src="/gfx/denkmaeler/isdn.gif";
  bandbreite = 45;
 }
}

// ------------------------------------------------------------------

var zoom_1 = new Image();
var zoom_2 = new Image();
var bild_1 = new Image();
var bild_2 = new Image();

var zoomed = 0;
var ausschnitt = "verkleinern";

zoom_1.src = "/gfx/common/zoom_1.gif";
zoom_2.src = "/gfx/common/zoom_2.gif";

bild_2.src = "/denkmaeler/" + archivno + "/karte2.gif"
bild_1.src = "/denkmaeler/" + archivno + "/karte1.gif"

function zoom()
{
 if (zoomed == 0) setTimeout('zoom_in_1()',100)
 else setTimeout('zoom_out_1()',100)
}

// ------------------------------------------------------------------

function zoom_in_1()
{
 document.images.karte.src = zoom_1.src;
 setTimeout('zoom_in_2()',100);
}

function zoom_in_2()
{
 document.images.karte.src = zoom_2.src;
 setTimeout('zoom_in_3()',100);
}

function zoom_in_3()
{
 document.images.karte.src = bild_2.src;

 zoomed = 1;
 ausschnitt = "vergroessern";
}

// ------------------------------------------------------------------

function zoom_out_1()
{
 document.images.karte.src = zoom_2.src;
 setTimeout('zoom_out_2()',100);
}

function zoom_out_2()
{
 document.images.karte.src = zoom_1.src;
 setTimeout('zoom_out_3()',100);
}

function zoom_out_3()
{
 document.images.karte.src = bild_1.src;

 zoomed = 0;
 ausschnitt = "verkleinern";
}

// -->