function $(elem)
{
	var obj = null;
	switch(typeof(elem))
	{
		case 'string':
			obj = document.getElementById(elem);
		break
		case 'object':
			obj = elem
		break
		default:
			throw new Error('gebi error');
	}
	return obj;
}

function openExternal(elem)
{
	var href = elem.href;
	elem.href = 'javascript: void(0);';
	window.open(href);
	setTimeout(function(){elem.href = href},1);
}