//创建一个数组,用于存放每个月的天数
function montharr(m0, m1, m2, m3, m4, m5, m6, m7, m8, m9, m10, m11) 
{
this[0] = m0;
this[1] = m1;
this[2] = m2;
this[3] = m3;
this[4] = m4;
this[5] = m5;
this[6] = m6;
this[7] = m7;
this[8] = m8;
this[9] = m9;
this[10] = m10;
this[11] = m11;
}
//实现月历
function calendar() {
var monthNames = "JanFebMarAprMayJunJulAugSepOctNovDec";
var today = new Date();
var thisDay;
var monthDays = new montharr(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
year = today.getYear() +1900;
thisDay = today.getDate();
if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) monthDays[1] = 29;
nDays = monthDays[today.getMonth()];
firstDay = today;
firstDay.setDate(1);
testMe = firstDay.getDate();
if (testMe == 2) firstDay.setDate(0);
startDay = firstDay.getDay();
document.write("<div id='rili'>") 
document.write("<table width='100%' align='center' CELLSPACING='0' CELLPADDING='0'>")
document.write("<TR><TD><table align='center' width='98%' border='0' cellspacing='0' cellpadding='0' bgcolor='#e9f6fe' class='timenow'>");
document.write("<TR><th colspan='7' bgcolor='#e9f6fe' height='30'>");
var dayNames = new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
var monthNames = new Array("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月");
var now = new Date();
document.writeln("<span STYLE='font-size:14px;Color:#006c99'>" + "公元 " + now.getYear() + "年" + monthNames[now.getMonth()] + "" + now.getDate() + "日 " + dayNames[now.getDay()] + "</span>");
document.writeln("</TH></TR><TR><TH BGCOLOR='#ff5400' height='22'><span STYLE='font-size:14px;Color:#fff'>日</span></TH>");
document.writeln("<th bgcolor='#409FE3'><span STYLE='font-size:14px;Color:White'>一</span></TH>");
document.writeln("<TH bgcolor='#409FE3'><span STYLE='font-size:14px;Color:White'>二</span></TH>");
document.writeln("<TH bgcolor='#409FE3'><span STYLE='font-size:14px;Color:White'>三</span></TH>");
document.writeln("<TH bgcolor='#409FE3'><span STYLE='font-size:14px;Color:White'>四</span></TH>");
document.writeln("<TH bgcolor='#409FE3'><span STYLE='font-size:14px;Color:White'>五</span></TH>");
document.writeln("<TH bgcolor='#409FE3'><span STYLE='font-size:14px;Color:White'>六</span></TH>");
document.writeln("</TR><TR>");
column = 0;
for (i=0; i<startDay; i++) {
document.writeln("\n<TD><span STYLE='font-size:14px;'> </span></TD>");
column++;
}

for (i=1; i<=nDays; i++) {
if (i == thisDay) {
document.writeln("</TD><TD ALIGN='CENTER' height='22'><span STYLE='font-size:14px;Color:#ff5400;'><B>")
}
else {
document.writeln("</TD><TD height='22' align='center'><span STYLE='font-size:14px;Color:#004866'>");
}
document.writeln(i);
if (i == thisDay) document.writeln("</span></TD>")
column++;
if (column == 7) {
document.writeln("<tr>"); 
column = 0;
}
}
document.writeln("</table></td></tr></table>")
document.writeln("</div>");
}