Q1547 How can I open or close four windows using a loop?

<script language="JavaScript"><!--
var openWind = new Array();
for (i=0;i<4;i++) {
  openWind[i] = window.open('page'+i+'.html','window'+i);
}

for (i=0;i<4;i++) {
  if (openWind[i] && !openWind[i].closed) openWind[i].close();
}
//--></script>