var url_prefix = "";
if (urls_optimieren == 1) url_prefix = root_verzeichnis;

function popup_bild(img_id)
{
	document.getElementById("body").style.cursor = "wait";
   	// Div entfernen falls schon vorhanden
	if (document.getElementById("popup") != null)
	{
		document.getElementById("body").removeChild(popup);
		popup = null;
	}

	// Gesamte Seite transparent schalten
   	document.getElementById('page').style.opacity = '0.15';
    document.getElementById('page').style.MozOpacity = '0.15';
    document.getElementById('page').style.KHTMLOpacity = '0.15';
    document.getElementById('page').style.filter = 'alpha(opacity:15)';

   	// Div dynamisch erzeugen
	popup = document.createElement("div");
   	popup.id = "popup";

    popup_width = 850;
    popup_height = 600;

	var scrolltop = window.pageYOffset;
	if (scrolltop == null) scrolltop = document.documentElement.scrollTop;
	if (scrolltop == null) scrolltop = document.body.scrollTop;
    if (scrolltop == null) scrolltop = 0;

	popup.style.left = (get_window_width() / 2) - (popup_width / 2) + "px";
   	popup.style.top = (get_window_height() / 2) - (popup_height / 2) + scrolltop + "px";

   	document.getElementById("body").appendChild(popup);
	popup.innerHTML = document.getElementById("bild" + img_id).innerHTML + "<br /><br /><a href='javascript:popup_schliessen()'>Fenster schließen</a>";
  	document.getElementById("body").style.cursor = "auto";
}

function popup_datenblatt()
{
	document.getElementById("body").style.cursor = "wait";
   	// Div entfernen falls schon vorhanden
	if (document.getElementById("popup") != null)
	{
		document.getElementById("body").removeChild(popup);
		popup = null;
	}

	// Gesamte Seite transparent schalten
   	document.getElementById('page').style.opacity = '0.15';
    document.getElementById('page').style.MozOpacity = '0.15';
    document.getElementById('page').style.KHTMLOpacity = '0.15';
    document.getElementById('page').style.filter = 'alpha(opacity:15)';

   	// Div dynamisch erzeugen
	popup = document.createElement("div");
   	popup.id = "popup";

    popup_width = 850;
    popup_height = 600;

	var scrolltop = window.pageYOffset;
	if (scrolltop == null) scrolltop = document.documentElement.scrollTop;
	if (scrolltop == null) scrolltop = document.body.scrollTop;
    if (scrolltop == null) scrolltop = 0;

	popup.style.left = (get_window_width() / 2) - (popup_width / 2) + "px";
   	popup.style.top = (get_window_height() / 2) - (popup_height / 2) + scrolltop + "px";

   	document.getElementById("body").appendChild(popup);
	popup.innerHTML = document.getElementById("datenblatt").innerHTML + "<br /><br /><a href='javascript:popup_schliessen()'>Fenster schließen</a>";
  	document.getElementById("body").style.cursor = "auto";
}