Cara Membuat Basic Calendar

<script type="text/javascript">

var todaydate=new Date()
var curmonth=todaydate.getMonth()+1 //get current month (1-12)
var curyear=todaydate.getFullYear() //get current year

document.write(buildCal(curmonth ,curyear, "main1", "month1", "daysofweek1", "days", 1));

</script>

<form>
<select onChange="updatecalendar(this.options)">
<script type="text/javascript">

var themonths=['January','February','March','April','May','June',
'July','August','September','October','November','December']

var todaydate=new Date()
var curmonth=todaydate.getMonth()+1 //get current month (1-12)
var curyear=todaydate.getFullYear() //get current year

function updatecalendar(theselection){
var themonth=parseInt(theselection[theselection.selectedIndex].value)+1
var calendarstr=buildCal(themonth, curyear, "main1", "month1", "daysofweek1", "days", 0)
if (document.getElementById)
document.getElementById("calendarspace").innerHTML=calendarstr
}

document.write('<option value="'+(curmonth-1)+'" selected="yes">Current Month</option>')
for (i=0; i<12; i++) //display option for 12 months of the year
document.write('<option value="'+i+'">'+themonths[i]+' '+curyear+'</option>')


</script>
</select>

<div id="calendarspace">
<script>
//write out current month's calendar to start
document.write(buildCal(curmonth, curyear, "main1", "month1", "daysofweek1", "days", 0))
</script>
</div>

</form>

<script type="text/javascript">

var todaydate=new Date()
var curmonth=todaydate.getMonth()+1 //get current month (1-12)
var curyear=todaydate.getFullYear() //get current year

</script>

<table border="0" cellspacing="0" cellpadding="3">
<tr> <td width="33%">
<script>
document.write(buildCal(curmonth ,curyear, "main1", "month1", "daysofweek1", "days", 1));
</script></td> <td width="33%">
<script>
document.write(buildCal(curmonth+1 ,curyear, "main1", "month1", "daysofweek1", "days", 1));
</script></td> </tr>
</table>

<style type='text/css'>

.main1 {
width:200px;
border:1px solid black;
}

.month1 {
background-color:black;
font:bold 12px verdana;
color:white;
}

.daysofweek1 {
background-color:gray;
font:bold 12px verdana;
color:white;
}

.days {
font-size: 12px;
font-family:verdana;
color:black;
background-color: lightyellow;
padding: 2px;
}

.days #today{
font-weight: bold;
color: blue;
background-color: yellow;
}

</style>


<script type='text/javascript'>
//<![CDATA[
function buildCal(m, y, cM, cH, cDW, cD, brdr){
var mn=['January','February','March','April','May','June','July','August','September','October','November','December'];
var dim=[31,0,31,30,31,30,31,31,30,31,30,31];

var oD = new Date(y, m-1, 1); //DD replaced line to fix date bug when current day is 31st
oD.od=oD.getDay()+1; //DD replaced line to fix date bug when current day is 31st

var todaydate=new Date() //DD added
var scanfortoday=(y==todaydate.getFullYear() && m==todaydate.getMonth()+1)? todaydate.getDate() : 0 //DD added

dim[1]=(((oD.getFullYear()%100!=0)&&(oD.getFullYear()%4==0))||(oD.getFullYear()%400==0))?29:28;
var t='<div class="'+cM+'"><table class="'+cM+'" cols="7" cellpadding="0" border="'+brdr+'" cellspacing="0"><tr align="center">';
t+='<td colspan="7" align="center" class="'+cH+'">'+mn[m-1]+' - '+y+'</td></tr><tr align="center">';
for(s=0;s<7;s++)t+='<td class="'+cDW+'">'+"SMTWTFS".substr(s,1)+'</td>';
t+='</tr><tr align="center">';
for(i=1;i<=42;i++){
var x=((i-oD.od>=0)&&(i-oD.od<dim[m-1]))? i-oD.od+1 : '&nbsp;';
if (x==scanfortoday) //DD added
x='<span id="today">'+x+'</span>' //DD added
t+='<td class="'+cD+'">'+x+'</td>';
if(((i)%7==0)&&(i<36))t+='</tr><tr align="center">';
}
return t+='</tr></table></div>';
}
//]]></script>