var addWindow = 0
function openwin(d,w,h,s) {
if (addWindow) {
if(!addWindow.closed) addWindow.close();
  }
tx = (screen.width - w) / 2;
ty = (screen.height - h) / 2;
if (s == 1) { s = "yes"; }
else { s = "no"; }

	 addWindow = window.open(d,"popup","width="+w+",height="+h+",top="+ty+",left="+tx+",menubar=no,toolbar=no,location=no,status=no, resizable=yes,scrollbars="+s+"");
	 addWindow.focus() 
}

function popup(d,w,h) {
if (addWindow) {
if(!addWindow.closed) addWindow.close();
  }
s = 1
tx = (screen.width - w) / 2;
ty = (screen.height - h) / 2;
if (s == 1) { s = "yes"; }
else { s = "no"; }

	 addWindow = window.open(d,"popup","width="+w+",height="+h+",top="+ty+",left="+tx+",menubar=no,toolbar=no,location=no,status=no, resizable=yes,scrollbars="+s+"");
	 addWindow.focus() 
}