function finestra(){

	var w_finestra = $(window).width();
	var h_finestra = $(window).height();
	//alert($(window).width());
	//alert(w_finestra+'x'+h_finestra);
			
	/*if (w_finestra >= 1280){ w_img="1680x1050"; }
	else if (w_finestra >= 1680){ w_img="2700x1800"; }
	else if (w_finestra < 1280){ w_img="1280x1024"; }*/
	if (w_finestra >= 1280){ w_img="1680x1120"; }
	if (w_finestra >= 1680){ w_img="1920x1280"; }
	if (w_finestra >= 1920){ w_img="2700x1800"; }
	if (w_finestra < 1280){ w_img="1280x1024"; }

	/*if (h_finestra >= 1024){ h_img="1050"; }
	else if (h_finestra >= 1050){ h_img="1800"; }
	else if (h_finestra < 1024){ h_img="1024"; }*/
	if (h_finestra >= 1024){ h_img="1120"; }
	if (h_finestra >= 1120){ h_img="1280"; }
	if (h_finestra >= 1280){ h_img="1800"; }
	if (h_finestra < 1024){ h_img="1024"; }

	//return $(window).width()+'x'+$(window).height()+'  '+w_img+'x'+h_img;
	return w_img;
}

function video_to_big(){
	
	$('.box_video').animate({ 
		width: "260px",
		height: "450px",
		padding: "30px"
	}, 1000 );
	
}