function $()
{
	var elements = new Array();

	for (var i = 0; i < arguments.length; i++)
	{
		var element = arguments[i];
		if (typeof element == 'string')
		{
			element = document.getElementById(element);
		}
	    if (arguments.length == 1)
		{
			return element;
		}
		elements.push(element);
	}
	return elements;
}

function showMenu(thisId)
{
	$('nav_small_class').innerHTML = eval("menu_" + thisId + ".innerHTML");
}

function open_mm(url, name, features, width, height, is_center)
{
	if(window.screen)
	{
		if(is_center=="true")
		{
			var left = (screen.width-width)/2;
			var top = (screen.height-height)/2;
			features+=(features!='')?',':'';
			features+=',left='+left+',top='+top;
		}

	}
	window.open(url, name, features+((features!='')?',':'')+'width='+width+', height='+height);
}