function sel(imagename)
{
	document.getElementById(imagename).src = menuImages[imagename + "_sel"].src;
	return;
}

function desel(imagename)
{
	document.getElementById(imagename).src = menuImages[imagename].src;
	return;
}
		
function loadMenuImage(imagename)
{
	menuImages[imagename] = new Image();
	menuImages[imagename].src = "images/menu_" + imagename + ".jpg";
		
	menuImages[imagename + "_sel"] = new Image();
	menuImages[imagename + "_sel"].src = "images/menu_" + imagename + "_sel.jpg";


	return;
}

function toggleComment() {
    var form = document.getElementById('commentform');
    var button = document.getElementById('commentbutton');

    if (button != null && button != "undefined") {
        button.style.display = "none";
    }
    if (form != null && form != "undefined") {
        form.style.display = "block";
    }
}

function reloadVerificationImage() {
    var img = document.getElementById('verimg');
    if (img != null && img != "undefined") {
        img.src = img.src + "#";
    }
}

function toggleVisibility (item)
{
    var v = document.getElementById(item);
    if (v == null || v == "undefined") return;
    if (v.style.display == "" || v.style.display == "none") {
        v.style.display = "block";
    }
    else {
        v.style.display = "none";
    }
}