function openWinScroll(popup_url,name,width,height) 
	{
		var size = ',width=' + width + ',height=' + height;
		var posicion = ",left="+Math.round(screen.availWidth/4)+",top="+Math.round(screen.availHeight/4);
		var popUp=window.open(popup_url,name,'resizable=no,menubar=no,location=no,toolbar=no,status=no,scrollbars=yes,directories=no,'+size+posicion);
		popUp.opener=self;
	}