var aktiv = window.setInterval("window_resize()", 50);
function window_resize() {
	var myWidth = 0, myHeight = 0;

	if( typeof( window.innerWidth ) == 'number' ) {
		//Non-IE
		myWidth = window.innerWidth;
		myHeight = window.innerHeight;
	} else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
		//IE 6+ in 'standards compliant mode'
		myWidth = document.documentElement.clientWidth;
		myHeight = document.documentElement.clientHeight;
	} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
		//IE 4 compatible
		myWidth = document.body.clientWidth;
		myHeight = document.body.clientHeight;
	}
	if(myHeight < 700){myHeight = 700;}	
	if(myWidth < 800){myWidth = 800;}	
	
	var margin = ( myHeight - 700 ) / 2 + 50;
	var content = myHeight - margin - 30;
	
	document.getElementById('background').style.marginTop = margin+"px";
	document.getElementById('table').style.height = myHeight+"px";

}