Javascript の配列

<script type="text/javascript">
<!--
  wday = new Array();
  wday[0] = "Sun";
  wday[1] = "Mon";
  wday[2] = "Tue";
  wday[3] = "Wed";
  wday[4] = "Thu";
  wday[5] = "Fri";
  wday[6] = "Sat";
  for(i=0; i<7; i++)
    document.write(wday[i] + "<br>");
// -->
</script>

<script type="text/javascript">
  wday2 = new Array("日", "月", "火", "水", "木", "金", "土");
  for(i=0; i<wday2.length; i++)
    document.write(wday2[i]);
</script>

<script type="text/javascript">
  var wday3 = ["日", "月", "火", "水", "木", "金", "土"];
  document.write(wday3);
</script>

<script type="text/javascript">
var src = ["日", "月", "火", "水", "木", "金", "土"];
src.reverse();
document.write(src);
</script>