function esittely(url) {
	var str, width, height, win, addons;
	if(addons == "")
		addons = ",fullscreen=no, status=yes";
	width = screen.availWidth - 10;
	height = screen.availHeight - 30;
	if(window.screen) {
	    var ah = screen.availHeight - 30;
		var aw = screen.availWidth - 10;
		var xc = (aw - width) / 2;
		var yc = (ah - height) / 2;

		str  = "height=" + height + ",innerHeight=" + height;
		str += ",width=" + width + ",innerWidth=" + width;
		str += ",left=" + "0" + ",screenX=" + xc;
		str += ",top=" + "0" + ",screenY=" + yc;
		str += ", resizable=yes, scrollbars=yes" + addons;
	}
	win = window.open(url, 'mw', str);
}
	
function avaa(url, w, h) {
	var str,w,h, win;
	if(window.screen) {
	    var ah = screen.availHeight - 30;
		var aw = screen.availWidth - 10;
		var xc = (aw - w) / 2;
		var yc = (ah - h) / 2;

		str  = "height=" + h + ",innerHeight=" + h;
		str += ",width=" + w + ",innerWidth=" + w;
		str += ",left=" +xc + ",screenX=" + xc;
		str += ",top=" + yc + ",screenY=" + yc;
		str += ", resizable=no, scrollbars=no";
	}
	win = window.open(url, 'pieni', str);
	win.focus();
}	

function login(url, addons) {
	var str, width, height, win;
	width = screen.availWidth - 10;
	height = screen.availHeight - 30;
	if(window.screen) {
	    var ah = screen.availHeight - 30;
		var aw = screen.availWidth - 10;
		var xc = (aw - width) / 2;
		var yc = (ah - height) / 2;

		str  = "height=" + height + ",innerHeight=" + height;
		str += ",width=" + width + ",innerWidth=" + width;
		str += ",left=" + "0" + ",screenX=" + xc;
		str += ",top=" + "0" + ",screenY=" + yc;
		//str = "fullscreen=yes,location=no,directories=no,status=no,copyhistory=no"
		str += ", resizable=yes, scrollbars=yes" + addons;
	}
	win = window.open(url, 'mw', str);
}

function show_div(divid) {
	document.getElementById('paivitykset').style.visibility='hidden';	
	document.getElementById('tarjoukset').style.visibility='hidden';
	document.getElementById(divid).style.visibility='visible';	
}


function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		tilaanappi_01_over = newImage("kuvat/tilaanappi-over.gif");
		preloadFlag = true;
	}
}

function showmenu(elmnt) {document.getElementById(elmnt).style.visibility="visible"}
function hidemenu(elmnt) {document.getElementById(elmnt).style.visibility="hidden"}


var width = screen.availWidth;
if(width > 800)
	width = 1024;
else
	width = 1024;