function OpenWindow(url, name, features)
{
	window.open(url, name, features, false);
}

function ToggleDisplay(oElement)
{
	if (document.getElementById(oElement).style.display != "block")
	{
		document.getElementById(oElement).style.display = "block";
	}
	else
	{
		document.getElementById(oElement).style.display = "none";
	}
}

var _lastToggledMenuItem	=	null;
function ToggleMenuItem(oElement)
{
	if(_lastToggledMenuItem != null && _lastToggledMenuItem != oElement)
		document.getElementById(_lastToggledMenuItem).style.display	=	"none";
	
	ToggleDisplay(oElement);
	_lastToggledMenuItem	=	oElement;
}

function DisplayGalleryImage(sHtmlFile)
{
	OpenWindow("./imagegallery/" + sHtmlFile, "ImageGalleryPopup", "width=640, height=480, left=100, top=100");
}