function popImage(img, w, h) {
	var w_avail = screen.availWidth;
	var h_avail = screen.availHeight;
	var top = Math.round ((h_avail - h) * .5);
	var left = Math.round ((w_avail - w) * .5);

	var title = "image";
	var param;
	w = w + 25;
	h = h + 25;
	param = "statusbar=no, width=" + w + ", height=" + h + ", top=" + top + ", left=" + left;
	win = window.open(img, title, param);
	win.focus();
}

function simplePopImage(img) {
	popImage(img, 750, 562);
}

function menuOver(element) {
	element.className = "menuOver";
	element.style.cursor = "hand";
}

function menuOut(element) {
	element.className = "menu";
	element.style.cursor = "pointer";
}

function switchlang(langFrom, langTo) {
	var urlFrom = new String(window.location);
	var chunkFrom = "/" + langFrom + "/" ;
	var chunkTo = "/" + langTo + "/" ;
	var index = urlFrom.indexOf(chunkFrom);
	if (index != -1) {
		var left = new String(urlFrom.substring(0, index));
		var right = new String(urlFrom.substring(index + chunkTo.length, urlFrom.length));
				
		var urlTo = left + chunkTo + right;
		document.location = urlTo;
	}
}