function open_bilder_popup (url, left, top) {
	
  var bild = new Image ();
  bild.src = url;

  if (document.getElementById ('bilder_popup') && document.getElementById ('bilder_popup_img'))

    document.getElementById ('bilder_popup_img').src = url;
	
  else {

    var popup = document.createElement ('div');
    popup.id = 'bilder_popup';

    if (!left && !top) {

		if (navigator.appName.indexOf ("Microsoft")) {
		  popup.style.position = 'fixed';
		  popup.style.left = '100px';
		  popup.style.top = '10px';
	  }
	  else {
		  popup.style.position = 'absolute';
		  popup.style.left = '100px';
		  popup.style.top = '330px';
	  }
    }
    else {

      popup.style.position = 'absolute';
      popup.style.left = left;
      popup.style.top = top;
    }
    popup.style.backgroundColor = '#5F5F5F'; <!-- 4F4F4F -->
    popup.style.padding = '0px 4px 4px 4px';
    popup.style.border = '1px solid black';
	popup.style.borderColor = '#000000';

    var close = document.createElement ('a');
    close.appendChild (document.createTextNode ('schliessen [x]'));
    close.href = 'javascript:close_bilder_popup ()';
    close.style.textAlign = 'right';
    close.style.display = 'block';
    popup.appendChild (close);

    var img = document.createElement ('img');
    img.id = 'bilder_popup_img';
    img.src = bild.src;
    img.style.cursor = 'pointer';
	img.title = 'Zum Schließen, hier Klicken!';	
    img.onclick=function(){return close_bilder_popup();}

    popup.appendChild (img);
	
    document.getElementsByTagName ('body')[0].appendChild (popup);
	location.href="#GAL_TOP";
  }
}


function close_bilder_popup () {

  var popup = document.getElementById ('bilder_popup');

  if (popup)

    document.getElementsByTagName ('body')[0].removeChild (popup);
}