function popup(idart,idcat,bildnummer,w,h) {
	window.open('http://www.mini-a-tour.de/front_content.php?idart=48&idcat=16&img_idart='+idart+'&img_idcat='+idcat+'&img_bild='+bildnummer,'bild','scrollbars=yes,resizable=yes,menubar=no,location=no,width='+w+',height='+h);
}


///////////////////////////////////////

function unscaleImage(im) { 

if (screen.width > 1024) {
  var maxWidth = 800;

} else {
   var maxWidth = 500;
}




	if (this.width == maxWidth) { 
		this.width = this.naturalWidth; 
		this.style.borderWidth = '0px'; 
		this.title = 'Click to change image size back';
	} else { 
		this.width = maxWidth; 
		this.style.borderWidth = '2px'; 
		this.title = 'Click to see original size';
	}

}

function scaleImage(im) { 

if (screen.width > 1024) {
  var maxWidth = 800;

} else {
   var maxWidth = 500;
}


if (typeof im.naturalWidth == 'undefined') im.naturalWidth = im.width; 
if (im.naturalWidth > maxWidth) { 
	im.width = maxWidth; 
	im.style.maxWidth = im.naturalWidth + 'px'; 
	im.className = 'resized'; 
	im.title = 'Click to see original size'; 
	im.onclick = unscaleImage;
document.getElementById("message").innerHTML="<i>Das Bild wurde automtisch verkleinert und an das Fenster angepasst.<br /> Zum vergrößern bitte auf das Bild klicken.</i>";

}

}