sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				}
			}
		}
if (window.attachEvent) window.attachEvent("onload", sfHover);

function openSitemapWindow() {
	w = 700;
	h = 580;
	window.open('index.php?sitemap,hu','popup','left='+((screen.width/2)-(w/2))+',top='+((screen.height/2)-(h/2))+',width='+w+',height='+h);
	return false;
}

function openEonWordWindow() {
	w = 790;
	h = 455;
	window.open('index.php?e.on_world','popup','left='+((screen.width/2)-(w/2))+',top='+((screen.height/2)-(h/2))+',width='+w+',height='+h);
	return false;
}

function openContactWindow() {
	w = 300;
	h = 460;
	window.open('index.php?kapcsolat','popup','left='+((screen.width/2)-(w/2))+',top='+((screen.height/2)-(h/2))+',width='+w+',height='+h);
	return false;
}