function alertSize() {
	myHeight = 0;

	if( typeof( window.innerWidth ) == 'number' ) {
		//Non-IE
		myHeight = window.innerHeight;
		} else {
			if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
				//IE 6+ in 'standards compliant mode'
				myHeight = document.documentElement.clientHeight;
			} else {
			if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
				//IE 4 compatible
				myHeight = document.body.clientHeight;
			}
		}
	}

	if(document.all){
		document.all.achtergrond.style.height=myHeight-220+'px'; /* minus padding */
		document.all.container.style.height=myHeight-0+'px'; /* force mozilla firefox (v1.06) to calculate height */
	}

	else{
		document.getElementById("achtergrond").style.height=myHeight-220+'px'; /* minus padding */
		document.getElementById("container").style.height=myHeight-0+'px'; /* force mozilla firefox (v1.06) to calculate height */
	}
};

window.onload = alertSize;
window.onresize = alertSize;