var winW 		= 800;
var winH 		= 600;
var winW 		= screen.availWidth;
var winH 		= screen.availHeight;

function openPhoto(i,w,h) {
	popW = w;
	popH = h;
	leftPos = (winW-popW)/2;
	topPos = ((winH-popH)/2);
	window.open("photo.php?i="+i+"&w="+w+"&h="+h,"Photo","width="+popW+",height="+popH+",top="+topPos+",left="+leftPos);
}