calender generator

calendar.js

<script type="text/javascript"><!--
function doCal(xxx) {
  var now = new Date();
  now.setMonth(xxx-1);
  var year = now.getFullYear();
  var month = now.getMonth() + 1;
  var today = now.getDate();

  now.setDate(1);
  var startDay = now.getDay();

  var monthdays = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
  var dateMax = monthdays[month - 1];
  if (month == 2 && ((year%4 == 0 && year%100 != 0) || year%400 == 0))
      dateMax = 29;

  var days = new Array("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");

  document.write("<table>");
  document.write("<tr><th>" + days[0] + "</th>");
  for (i=1; i<6; i++) document.write("<th>" + days[i] + "</th>");
  console.log('hoge');
  document.write("<th bgcolor='#add8e6'>" + days[6] + "</th></tr>\n");

  var col=0;
  if (startDay > 0) {
      document.write("<tr>");
      for ( ; col<startDay; col++) document.write("<td>&nbsp;</td>");
  }
  for (i=1; i<=dateMax; i++) {
      if (col == 0) document.write("<tr>");
      if (i == today) document.write("<td bgcolor='#ffc3ce'>" + i + "</td>");
      else document.write("<td>" + i + "</td>");
      if (col == 6) { document.write("</tr>\n"); col=0; } else col++;
  }
  if (col != 0) {
      for ( ; col<7; col++) document.write("<td>&nbsp;</td>");
      document.write("</tr>");
  }
  document.write("</table>");
}
for(var j=1; j<=12; j+=1) {
  console.log(j);
  doCal(j);
}
//-->
</script>