function showCalendar() {

// Set varible to the current date
var right_now=new Date();

// set variable to current month number (0-11)
var month_num = right_now.getMonth()

// set varible to the current day value (1-31)
var thedate=right_now.getDate()

// create an array for the month name
var month_name = new Array (
"January ",
"February ",
"March ",
"April ",
"May ",
"June ",
"July ",
"August ",
"September ",
"October ",
"November ",
"December ");

// Create a varible right_year with the current year
var right_year=right_now.getYear();
if (right_year < 2000) 
right_year = right_year + 1900; 

// create a varible to specify what the
// last day for the current month is
var theday = 0;
if (
month_num == 0 || 
month_num == 2 || 
month_num == 4 || 
month_num == 6 || 
month_num == 7 || 
month_num == 9 || 
month_num == 11)
{ 
endofmonth=31;
}
if (
month_num == 3 || 
month_num == 5 || 
month_num == 8 || 
month_num == 10)
{ 
endofmonth=30;
}

if (month_num == 1)
{ 
// This will check for a leap year
// If the year is evenly divisible by four
// or in the case of a new century evenly divisible
// by 400 then the end of the February month should be the 29th

right_year_divided=right_year/4;
right_year_divided_string= new String(right_year_divided);
var is_decimal = right_year_divided_string.indexOf('.');
if (is_decimal != -1)
{ endofmonth=28; }
else
{ endofmonth=29; }

right_year_string= new String(right_year);
var the_century=new String(right_year_string.charAt(2)) 
the_century= the_century + new String(right_year_string.charAt(3));
if (the_century == "00")
{ 
right_year_divided=right_year/400;
right_year_divided_string= new String(right_year_divided);
var is_decimal = right_year_divided_string.indexOf('.');
if (is_decimal != -1)
{endofmonth=28;}
else
{endofmonth=29;}
}
}

// Start building the table
document.write("<table border=1 align=center>");
document.write("<caption><span class='subheading'>");

// Place a caption with the month name and year
document.write(month_name[month_num]);
document.write(right_year );
document.write("</span></caption>");

// Write the table header row
document.write("<tr><td><span class='subheading'>s</span></td><td><span class='subheading'>m</span></td><td><span class='subheading'>t</span></td><td><span class='subheading'>w</span></td>");
document.write("<td><span class='subheading'>t</span></td><td><span class='subheading'>f</span></td><td><span class='subheading'>s</span></td></tr><tr>");

// Figure out which day of the week the 1st of the 
// current month belongs to
first_day = new Date(right_year,month_num,1)


// Write the first row in the calendar with dates
// Check which date of the month is the first to
// fill it into the appropriate day of the week
for (counter = 0; counter < 7; counter++)
{ 

// Check the counter aganst the first day of the month value (0 - 6)

if (counter >= first_day.getDay() ) 
{ 

// Start counter for the calendar days
theday=theday+1;

// Check if the current day is in the first week if so, place bold text
if (theday == thedate) 
{document.write("<td><span class='subheading'>" + theday + "</span></td>");}
else 
// If it's not the current date output without bold text
{document.write("<td><span class='text'>" + theday + "</span></td>");}
} 
else 
// if there is no day yet output an empty cell
{document.write("<td></td>"); }
}

// End row for the first week of the month
document.write("</tr>"); 

// Loop for the rest fo the weeks in the month 
for (weeks = 0; weeks < 5; weeks++)
{ 
document.write("<tr>"); 
// loop for the days with the remaining weeks
for (week = 0; week < 7; week++)
{

// counter for the day of the month
theday=theday+1

// if the couter = the current date display in bold 
if (theday == thedate) 
{document.write("<td><span class='subheading'>" + theday + "</span></td>");}
else 
{ 

// if the counter is higher then than the number of days
// in the month then display a blank cell
if (theday > endofmonth) 
{document.write("<td></td>");}
else 

// If it's not the cureent day display the date wioth bold type
{document.write("<td><span class='text'>" + theday + "</span></td>"); }
}
}
document.write("</tr>");
}
document.write("</table>");

}