function openWind(url, w, h, wn) {
	var screenW = screen.width;
	var screenH = screen.height;
	var screenL = (screenW - w)/2;
	var screenT = (screenH - h)/2;
	if (wn == null) var wn = '';
	window.open([url],'wind'+[wn],'top='+[screenT]+',left='+[screenL]+',titlebar=no,toolbar=no,width='+[w]+',height='+[h]+',directories=no,status=no,scrollbars=no,menubar=no');
}
function openWindScr(url, w, h, wn) {
	var screenW = screen.width;
	var screenH = screen.height;
	var screenL = (screenW - w)/2;
	var screenT = (screenH - h)/2;
	if (wn == null) var wn = '';
	window.open([url],'wind'+[wn],'top='+[screenT]+',left='+[screenL]+',titlebar=no,toolbar=no,width='+[w]+',height='+[h]+',directories=no,status=no,scrollbars=yes,menubar=no');
}