function ApriFinestraCentrata(url,nome,sb,l,h) {
	var p_scrollbars = 'scrollbars=' + (sb ? 'yes' : 'no');
	var p_width = 'width=' + l;
	var p_height = 'height=' + h;
	var p_left = 'left=' + (window.screen.width/2 - l/2);
	var p_top = 'top=' + (window.screen.height/2 - h/2);
	
	window.open(url,nome,p_scrollbars + ',' + p_width + ',' + p_height + ',' + p_top + ',' + p_left);
}