// apelata atunci cand fereastra este redimensionata (sau incarcata)
function windowResize()
{
	var right_banner = document.getElementById('right_banner');

	// in functie de latimea paginii afiseaza sau ascunde banner-ul
	right_banner.style.display = windowWidth() < 930 ? 'none' : 'block';
}

// obtine latimea ferestrei curente
function windowWidth()
{
	// din pacate browserele au metode diferite de a obtine
	// aceasta informatie
	if (typeof window.innerWidth != 'undefined')
	{
		return window.innerWidth;
	}

	if (typeof document.body.clientWidth != 'undefined')
	{
		return document.body.clientWidth;
	}

	if (typeof document.documentElement.clientWidth != 'undefined')
	{
		return document.documentElement.clientWidth;
	}

	return 0;
}

if (window.addEventListener)
{
	window.addEventListener('resize', windowResize, false);
	window.addEventListener('load', windowResize, false);
}
else
{
	window.attachEvent('onresize', windowResize);
	window.attachEvent('onload', windowResize);
}