var popwin;

// PopUps aufrufen
function PopUp(src,w,h)
{
	oversize = 0;
	if(popwin) popwin.close();

	if(w > screen.width-100)
	{
		oversize = 1;
		// h = Math.round((screen.width-100)/w*h); // Verhältnis
		h = parseInt(h)+20; // Scrollbars
		w = (screen.width-100);
	}
	if(h > screen.height-150)
	{
		oversize = 1;
	    	// w = Math.round((screen.height-150)/h*w); // Verhältnis
	    	w = parseInt(w)+20; // Scrollbars
		h = (screen.height-150);
	}

	breite = Math.round((screen.width - w) / 2);
	hoehe = Math.round((screen.height - h) / 2);

	if(oversize == 1)
		popwin = window.open(src,"popwin","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width="+w+",height="+h+",top="+hoehe+",left="+breite);
	else
		popwin = window.open(src,"popwin","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width="+w+",height="+h+",top="+hoehe+",left="+breite);
}

// Druckansicht
function PrintView(src,w,h)
{
	var breite = (screen.width - w) / 2;
	var hoehe = (screen.height - h) / 2;
	window.open(src,"printview","toolbar=yes,location=no,directories=no,status=no,menubar=yes,scrollbars=yes,resizable=yes,width="+w+",height="+h+",top="+hoehe+",left="+breite);
}

// Formulare leeren
function ClearForm(Formular)
{
	document.forms[Formular].reset(); // Zuerst reset!
	var x = 0;
	while(document.forms[Formular].elements[x])
	{
		if(document.forms[Formular].elements[x].type == "checkbox" || document.forms[Formular].elements[x].type == "radio")
		{
			// Checkboxen + Radiobuttons werden nicht angehakt
			document.forms[Formular].elements[x].checked = false;
		}
		else if(document.forms[Formular].elements[x].type != "hidden" && document.forms[Formular].elements[x].type != "submit" && document.forms[Formular].elements[x].type != "reset" && document.forms[Formular].elements[x].type != "button")
		{
			// Alle, ausser versteckte Felder, dürfen geleert werden
			document.forms[Formular].elements[x].value = "";
		}
		x++;
	}
}

// Zum Anfang der Seite scrollen
function ScrollToTop()
{
	var y = 0;

	if(window.pageYOffset) y = window.pageYOffset;
	else
	if(document.body && document.body.scrollTop) y=document.body.scrollTop;

	while(y > 0)
	{
		setTimeout("window.scrollBy(0,-20)",10);
		y = y-5;
	}
}

// Seite zu den Favoriten
function MakeFavorite(title,url)
{
	if((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4))
	{
		window.external.AddFavorite(url,title)
	}
	else if(navigator.appName == "Netscape")
	{
		alert("Unsere Homepage können Sie manuell oder\nmit den Tasten STRG+D zu den Favoriten hinzufügen.");
	}
}

// Bilder vorladen, mit PreloadImages('bild1.jpg','bild2.gif'); aufrufen
function PreloadImages()
{
	document.Vorladen = new Array();
	if(document.images)
	{
		for(var i=0; i<PreloadImages.arguments.length; i++)
		{
			document.Vorladen[i] = new Image();
			document.Vorladen[i].src = PreloadImages.arguments[i];
		}
	}
}

// Liefert ein Object anhand ID oder Name
function gObj(id)
{
	if(typeof document.getElementById(id) == 'object' && document.getElementById(id) != null)
	{
		return document.getElementById(id);
	}
	else if(document.getElementsByName)
	{
		var namedObjects = document.getElementsByName(id);
		if(typeof namedObjects != 'undefined' && namedObjects.length)
		{
		    return namedObjects[0];
		}
	}
}

// PNG-Bilder werden im IE 5.5 oder IE 6 halbtransparent dargestellt, ohne extra Klassen benutzen zu müssen
// vor </body> muss noch folgendes eingebunden werden:
// <script type="text/javascript">
// fixAllPNGs();
// </script>
function fixAllPNGs()
{
	arVersion = navigator.appVersion.split("MSIE")
	version = parseFloat(arVersion[1])

    if((version >= 5.5) && (version < 7) && (document.body.filters))
    {
		for(i=0; i<document.getElementsByTagName('img').length; i++)
		{
			myImage = document.getElementsByTagName('img')[i];

			if(myImage.src.match(/\.png$/) != null)
			{
				var imgID = (myImage.id) ? "id='" + myImage.id + "' " : ""
				var imgClass = (myImage.className) ? "class='" + myImage.className + "' " : ""
				var imgTitle = (myImage.title) ?
				             "title='" + myImage.title  + "' " : "title='" + myImage.alt + "' "
				var imgStyle = "display:inline-block;" + myImage.style.cssText
				var strNewHTML = "<span " + imgID + imgClass + imgTitle
				          + " style=\"" + "width:" + myImage.width
				          + "px; height:" + myImage.height
				          + "px;" + imgStyle + ";"
				          + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
				          + "(src=\'" + myImage.src + "\', sizingMethod='image');\"></span>"
				myImage.outerHTML = strNewHTML;
				i--;
			}
		}
	}
}

// Bei Enter soll Formular gesendet werden
function sendByEnter(frm_name, e)
{
	if(!e)
	{
		e = window.event;
	}

	if(e.which)
	{
		key = e.which;
	}
	else if(e.keyCode)
	{
		key = e.keyCode;
	}

	if(key == 13 || key == 10){
		gObj(frm_name).submit();
		return true;
	}
}