function openImgWindow(url, width, height) {
	// stellt die Bildschirmabmessungen fest
	var ns6 = (!document.all && document.getElementById);
	var ie4 = (document.all);
	var ns4 = (document.layers);

	if(ns6 || ns4) {
		var sbreite = innerWidth;
		var shoehe = innerHeight;
	} else if(ie4) {
		var sbreite = document.body.clientWidth;
		var shoehe = document.body.clientHeight;
	}

	// Fensterpossition linke obere Ecke
	x = (sbreite-width)/2;
	y = (shoehe-height)/2;

	var properties = "left="+x+", top="+y+", screenX="+x+", screenY="+y;
	properties = properties + ", width="+width+", height="+height+", scrollbars=no";

	window.open(url, "image", properties);
}

function swapDisplay(id) {
	objToSwap = document.getElementById(id);
	if(objToSwap.style.display == "block") {
		objToSwap.style.display = "none";
	} else {
		objToSwap.style.display = "block";
	}
}

function loadGallery() {
	swapDisplay("gallery");
	swapDisplay("galleryload");
}

function openMovieWindow() {
	window.open('/movie.php', "movie", 'width=404, height=384');
}