function showImg(URL,breite,hoehe) {
	bildfenster = window.open(URL, "bild", "width="+breite+",height="+hoehe+",menubar=no,toolbar=no,scrollbars=auto,resizable=yes");
	bildfenster.focus();
}
function showFooter() {
	myFooterHeight = document.getElementById("footer").offsetHeight - 67;
	if ( document.getElementById("footer").style.bottom == '0px' || document.getElementById("footer").style.bottom=="" ) {
		y = 1;
		rollDownFooter = window.setInterval("downFooter()", 1);
	} else {
		y = myFooterHeight;
		rollUpFooter = window.setInterval("upFooter()", 1);
	}
}
function downFooter() {
	y = y+8;
	i = y;
	y.toString(2);
	setY = '-'+y+'px';
	document.getElementById("footer").style.bottom = setY;
	if (i >= myFooterHeight) {
    	window.clearInterval(rollDownFooter);
	}
}
function upFooter() {
	y = y-8;
	if ( y<0 ) {
		y = 0;
	}
	i = y;
	y.toString(2);
	setY = '-'+y+'px';
	document.getElementById("footer").style.bottom = setY;
	if (i <= 0) {
    	window.clearInterval(rollUpFooter);
		document.getElementById("footer").style.bottom = '0px';
	}
}