function 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;
}
	var contentElement = document.getElementById('c');
	contentElement.style.height = (myHeight-52)+'px';//menu + footer
}
window.onload = function() {
	resize();
}
window.onresize = function() {
	resize();
}

function changefoto(VARpos) {
	document.getElementById('foto').style.backgroundPosition='0 -'+VARpos+'px';
}