var activeDiv = null,
	activeArrow = null,
	activeMainTd = null;

function expandDiv(id) {
	if (activeDiv != null) {
		activeDiv.style.display = "none";
		activeArrow.src = arrowRight.src;
		activeMainTd.className = "navTdUnselected";
	}
	var clickedDiv = document.getElementById("rollDown" + id),
		clickedArrow = document.getElementById("arrowImg" + id),
		clickedMainTd = document.getElementById("selectedMainTd" + id);
	clickedDiv.style.display = "block";
	clickedArrow.src = arrowDown.src;
	clickedMainTd.className = "navTdSelected";
	activeDiv = clickedDiv;
	activeArrow = clickedArrow;
	activeMainTd = clickedMainTd;
}

var isTextEnlarged = false;
function setFontSize(imgObj) {
	for(i=0;i<nOfTextmassObj;i++) {
		textmassObj = eval('document.getElementById("textmass' + i + '");');
		if (isTextEnlarged) {
			textmassObj.style.fontSize = "100%";
			imgObj.src = textSizeImgL.src;
		} else {
			textmassObj.style.fontSize = "large";
			imgObj.src = textSizeImgS.src;
		}
	}
	isTextEnlarged = !isTextEnlarged;
}

function enlargeImage(img, text) {
	var openWin = window.open("","prev","width=420,height=420,resizable=1,toolbar=0,statusbar=0,scrollbars=1");
	openWin.location.href = "preview.php?img=" + img + "&desc=" + text;
}

function openWin(url, w, h, s) {
	var openWin = window.open(url,"","width=" + w + ",height=" + h + ",resizable=1,toolbar=0,menubar=0,statusbar=0,scrollbars=" + s);
}