function openwindow(ls,pic,ttl,w,h)
{

if (document.all || document.layers) {
    w1 = screen.availWidth;
    h1 = screen.availHeight;
}

if (navigator.appName=='Netscape')
{
    w1 = screen.availWidth;
    h1 = screen.availHeight;
}

var leftpos = (w1-w)/2;
var toppos = (h1-h)/2;

	win = window.open(ls + "/picture.php?title=" + ttl + "&picture=" + pic,"_blank", 'width=' + (w+10) + ',height=' + (h+10) + ',top=' + toppos + ',left=' + leftpos  );
	if (navigator.appName=='Netscape') { win.focus(); }
	
}