function popupWindow(wndURL,wndWidth,wndHeight)
{
    if (document.all) var xMax = screen.width, yMax = screen.height;
    else
        if (document.layers) var xMax = window.outerWidth, yMax = window.outerHeight;
        else var xMax = 640, yMax=480;

    var xOffset = (xMax - wndWidth)/2, yOffset = (yMax - wndHeight)/2;

    window.open(wndURL,'','width='+wndWidth+',height='+wndHeight+',screenX='+xOffset+',screenY='+yOffset+',top='+yOffset+',left='+xOffset+',copyhistory=no,directories=no, menubar=no,location=no,scrollbars=auto,resizable=no');
}

function fullWindow(url) {
   var winwidth = screen.availWidth;
   var winheight = screen.availHeight;

	if (document.all) {
	   var sizer = window.open("","",'left=0,top=0,width='+winwidth+',height='+winheight+',scrollbars=auto,fullscreen=yes');
	   sizer.location = url;
	} else {
	   window.open(url,'fotowindow','width=winwidth,height=winheight,menubar=no,status=no,location=no,scrollbars=auto,fullscreen=yes,directories=no,resizable=yes');
	}
}