function openPage(){
	var viewportwidth;
	var viewportheight;
	
	// the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
	if (typeof window.innerWidth != 'undefined'){
			viewportwidth = window.innerWidth,
			viewportheight = window.innerHeight
	}// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
	else if (typeof document.documentElement != 'undefined'&& typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0){
			 viewportwidth = document.documentElement.clientWidth;
			 viewportheight = document.documentElement.clientHeight;
	}// older versions of IE			
	else{
		viewportwidth = document.getElementsByTagName('body')[0].clientWidth;
		viewportheight = document.getElementsByTagName('body')[0].clientHeight;
	}
	
	document.getElementById("popup").style.width=viewportwidth+'px';
	document.getElementById("popup").style.height=viewportheight+'px';
	
	document.getElementById("popupOuter").style.width=viewportwidth+'px';
	document.getElementById("popupOuter").style.height=viewportheight+'px';
	
	document.getElementById("popup").style.display="block";
	document.getElementById("popupOuter").style.display="block";
}


function closePopup(){
	document.getElementById("popup").style.display="none";
	document.getElementById("popupOuter").style.display="none";
}