function pagesize() {
	
	var windowY = (document.documentElement && document.documentElement.clientHeight) || window.innerHeight || self.innerHeight || document.body.clientHeight; 
	var scrollY = (document.documentElement && document.documentElement.scrollTop) || window.pageYOffset || self.pageYOffset || document.body.scrollTop;

	var pageY = (document.documentElement && document.documentElement.scrollHeight) ? document.documentElement.scrollHeight : (document.body.scrollHeight > document.body.offsetHeight) ? document.body.scrollHeight : document.body.offsetHeight;

	var extraY = document.body.scrollHeight;

	if (self.innerHeight) {
		// all except Explorer 
		if(navigator.platform == "MacPPC" || navigator.platform == "MacIntel") {
			document.getElementById("spacerjpg").height = extraY;
			document.getElementById("redlinejpg").height = extraY - 31;
		}
		else {
			document.getElementById("spacerjpg").height = pageY;
			document.getElementById("redlinejpg").height = pageY - 31;
		}
	}
	else if (document.documentElement && document.documentElement.clientHeight) {
		// Explorer 6 Strict Mode
		document.getElementById("spacerjpg").style.height = pageY + 80;
		document.getElementById("redlinejpg").style.height = pageY + 48;
	}
	else if (document.body) {
		// other Explorers
		document.getElementById("spacerjpg").style.height = extraY;
		document.getElementById("redlinejpg").style.height = extraY - 31;
	}
}

function vorschaufenster(URL) {
	Fenster1 = window.open(URL, "Vorschau", "width=768,height=1024,left=10,top=10, resizable=yes, scrollbars=yes, status=yes, location=no");
	Fenster1.focus();
	Fenster1.moveTo(0,0);
	Fenster1.resizeTo(screen.width,screen.height);
}