var popUpWin=0;
function popUpWindow(PageURL, WinName, Width, Height, Scrollbar, Resize)
{
	if ((Width<10) || (Width > screen.availWidth)) { Width = screen.availWidth; }
	if ((Height<10) || (Height > screen.availHeight)) { Height = screen.availHeight; }
	if ((Width==screen.availWidth) || (Height==screen.availHeight)) { Scrollbar ='yes'; }
	Left = (screen.availWidth) ? (screen.availWidth-Width)/2 : 0;
	Top  = (screen.availHeight) ? (screen.availHeight-Height)/2 : 0;
	Positions = 'height='+Height+',width='+Width+',top='+Top+',left='+Left;
	Features = Positions+','+'scrollbars='+Scrollbar+',resizable='+Resize+',toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=yes';
	if (popUpWin) {
		if (!popUpWin.closed) popUpWin.close();
	}
	popUpWin = window.open(PageURL, WinName, Features);
	if (popUpWin) {
		popUpWin.focus();
	}
}

function apriImmagine(Link, Width, Height)
{
	if (Link!='') popUpWindow(Link,'Immagine',Width+4,Height+30,'no','no');
}

function apriScheda(Link, Width, Height)
{
	if (Link!='') popUpWindow(Link,'Articolo',Width+4,Height+30,'yes','no');
}

function apriCarrello(Link, Qta)
{
	if (Link!='')
  {
    if (Qta!='') {
      Link = Link + '&qta=' + document.getElementById(Qta).value;
    }
    popUpWindow(Link,'Carrello',760,550,'yes','no');
  }
}