// http://www.howtocreate.co.uk/tutorials/javascript/browserwindow

function scaleGrey() {
	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;
	}
	
	coverElem.style.height = document.body.clientHeight+"px";
	if (myWidth < 996) {
		coverElem.style.width = "996px";
	} else {
		coverElem.style.width = "100%";
	}
}

function showCover() {
	
	coverElem = document.getElementById("grayCover");
	
	scaleGrey();
	
	coverElem.style.display = "block";
	document.getElementById("sendToFriendPopup").style.display = "block";
	
	window.onresize = scaleGrey;
	
}