Hi, I have done the javascript event calendar. And it works fine.In that code i add the drop down list to select the month based on that calendar will change .For that i use select tag and include option tags and i use the function as onChange="changedate()".But it will not effect.Plz tell that whats the mistake in my code. [javascript] <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>sayhi</title> <link href="stylesheet.css" rel="stylesheet" type="text/css" /> <script language="JavaScript" type="text/javascript" src="events.js"></script> <script type="text/JavaScript" language="JavaScript"> var thisDate = 1; // Tracks current date being written in calendar var wordMonth = new Array("January","February","March","April","May","June","July","August","September","October","November","December"); var today = new Date(); // Date object to store the current date var todaysDay = today.getDay() + 1; // Stores the current day number 1-7 var todaysDate = today.getDate(); // Stores the current numeric date within the month var todaysMonth = today.getUTCMonth() + 1; // Stores the current month 1-12 var todaysYear = today.getFullYear(); // Stores the current year var monthNum = todaysMonth; // Tracks the current month being displayed var yearNum = todaysYear; // Tracks the current year being displayed var firstDate = new Date(String(monthNum)+"/1/"+String(yearNum)); // Object Storing the first day of the current month var firstDay = firstDate.getUTCDay(); // Tracks the day number 1-7 of the first day of the current month var lastDate = new Date(String(monthNum+1)+"/0/"+String(yearNum)); // Tracks the last date of the current month var numbDays = 0; var calendarString = ""; var eastermonth = 0; var easterday = 0; var date =0; var event8=""; var events1="hello"; events = new Array( ["Y", "11", "8", "2008", "1:00 AM", "12:59 PM", "beautiful day", "aweewwewweeweweww"], ["Y", "11", "22", "2008", "1:00 AM", "12:59 PM", "beautiful days", "wewewewewewqwewwew"] // Please omit the final comma after the ] from the last line above unless you are going to add another event at this time. ); function changedate(buttonpressed) { if (buttonpressed == "prevyr") yearNum--; else if (buttonpressed == "nextyr") yearNum++; else if (buttonpressed == "prevmo") monthNum--; else if (buttonpressed == "nextmo") monthNum++; else if (buttonpressed == "nextmo1") { monthNum=document.getElementById("select3"); } else if (buttonpressed == "return") { monthNum = todaysMonth; yearNum = todaysYear; } if (monthNum == 0) { monthNum = 12; yearNum--; } else if (monthNum == 13) { monthNum = 1; yearNum++ } lastDate = new Date(String(monthNum+1)+"/0/"+String(yearNum)); numbDays = lastDate.getDate(); firstDate = new Date(String(monthNum)+"/1/"+String(yearNum)); firstDay = firstDate.getDay() + 1; createCalendar(); return; } function easter(year) { // feed in the year it returns the month and day of Easter using two GLOBAL variables: eastermonth and easterday var a = year % 19; var b = Math.floor(year/100); var c = year % 100; var d = Math.floor(b/4); var e = b % 4; var f = Math.floor((b+8) / 25); var g = Math.floor((b-f+1) / 3); var h = (19*a + b - d - g + 15) % 30; var i = Math.floor(c/4); var j = c % 4; var k = (32 + 2*e + 2*i - h - j) % 7; var m = Math.floor((a + 11*h + 22*k) / 451); var month = Math.floor((h + k - 7*m + 114) / 31); var day = ((h + k - 7*m +114) % 31) + 1; eastermonth = month; easterday = day; } function createCalendar() { calendarString = ''; var daycounter = 0; calendarString +='<tr>'; calendarString +='<td class=\"tdpad\" colspan=\"2\">'; calendarString +='<table width=\"741\" border=\"0\" align=\"center\" cellpadding=\"0\" cellspacing=\"0\">'; calendarString +='<tr>'; calendarString +='<td height=\"20\" colspan=\"4\" valign=\"top\"><a class=\"breadlink\" href=\"#\">Home</a> - Calender of Events</td>'; calendarString +='</tr>'; calendarString +='<tr>'; calendarString +='<td width=\"21%\" height=\"30\"><font class=\"calender\">'+ wordMonth[monthNum-1]+ yearNum+'</font></td>'; calendarString +='<td colspan=\"3\" align=\"right\">'; calendarString +='<input class=\"btn2\" type=\"submit\" name=\"Submit\" value=\"Import Events\" />'; calendarString +='<input class=\"btn2\" type=\"submit\" name=\"Submit2\" value=\"Open Window\" />'; calendarString +='</td>'; calendarString +='</tr>'; calendarString +='<tr>'; calendarString +='<td height=\"30\"><a href=\"#\" class=\"etext\">Month</a> - <a href=\"#\" class=\"etext\">Week</a> - <a href=\"#\" class=\"etext\">Day</a></td>'; calendarString +='<td width=\"47%\" align=\"center\">'; calendarString +='<a class=\"etext\" href=\"#\" onClick=\"changedate(\'prevmo\')\"><<< Previous</a>'; calendarString +='<select name=\"select3\" id=\"select3\" onChange=\"changedate(\'nextmo1\')\">'; calendarString +='<option value='+ wordMonth[monthNum-1]+'>'+ wordMonth[monthNum-1]+'</option>'; calendarString +='<option value='+ wordMonth[monthNum-2]+'>'+ wordMonth[monthNum-2]+'</option>'; calendarString +='<option value='+ wordMonth[monthNum-3]+'>'+ wordMonth[monthNum-3]+'</option>'; calendarString +='<option value='+ wordMonth[monthNum-4]+'>'+ wordMonth[monthNum-4]+'</option>'; calendarString +='<option name='+ wordMonth[monthNum-5]+'>'+ wordMonth[monthNum-5]+'</option>'; calendarString +='<option name='+ wordMonth[monthNum-6]+'>'+ wordMonth[monthNum-6]+'</option>'; calendarString +='<option name='+ wordMonth[monthNum-7]+'>'+ wordMonth[monthNum-7]+'</option>'; calendarString +='<option name='+ wordMonth[monthNum-8]+'>'+ wordMonth[monthNum-8]+'</option>'; calendarString +='<option name='+ wordMonth[monthNum-9]+'>'+ wordMonth[monthNum-9]+'</option>'; calendarString +='<option name='+ wordMonth[monthNum-10]+'>'+ wordMonth[monthNum-10]+'</option>'; calendarString +='<option name='+ wordMonth[monthNum-11]+'>'+ wordMonth[monthNum-11]+'</option>'; calendarString +='<option name='+ wordMonth[monthNum]+'>'+ wordMonth[monthNum]+'</option>'; calendarString +='</select>'; calendarString +='<select name=\"select4\">'; calendarString +='<option>'+ yearNum+'</option>'; calendarString +='</select>'; calendarString +='<a class=\"etext\" href=\"#\" onClick=\"changedate(\'nextyr\')\">Next >>></a>'; calendarString +='</td>'; calendarString +='<td width=\"27%\">'; calendarString +='<a href=\"#\" class=\"etext\">Login</a> - <a href=\"#\" class=\"etext\">Search</a>'; calendarString +='<select name=\"select\">'; calendarString +='<option>Hi-Radar Events</option>'; calendarString +='</select>'; calendarString +='</td>'; calendarString +='<td>'; calendarString +='<input name=\"image\" type=\"image\" value=\"Submit\" src=\"images/search.gif\" />'; calendarString +='</td>'; calendarString +='</tr>'; calendarString +='</table>'; calendarString +='</td>'; calendarString += '</tr>'; calendarString += '<tr>'; calendarString += '<td style=\"padding-right:12px;\" height=\"26\" align=\"right\" ><a class=\"elink\" href=\"#\">View Open-Win</a> - <a class=\"elink\" href=\"#\">Manage Open-Win</a> - <a class=\"elink\" href=\"#\">Browse Open-Win</a> - <a class=\"elink\" href=\"#\">View My Bookmark</a></td>'; calendarString +='</tr>'; calendarString += '<table width="741" height="630" border="0" cellpadding="0" cellspacing="1">'; calendarString += '<tr>'; calendarString += '<td width=\"106\" height=\"26\" align=\"center\" bgcolor=\"#4F7637\" class=\"font\">Sunday</td>'; calendarString += '<td width=\"106\" height=\"26\" align=\"center\" bgcolor=\"#4F7637\" class=\"font\">Monday</td>'; calendarString += '<td width=\"106\" height=\"26\" align=\"center\" bgcolor=\"#4F7637\" class=\"font\">Tuesday</td>'; calendarString += '<td width=\"106\" height=\"26\" align=\"center\" bgcolor=\"#4F7637\" class=\"font\">Wednesday</td>'; calendarString += '<td width=\"106\" height=\"26\" align=\"center\" bgcolor=\"#4F7637\" class=\"font\">Thursday</td>'; calendarString += '<td width=\"106\" height=\"26\" align=\"center\" bgcolor=\"#4F7637\" class=\"font\">Friday</td>'; calendarString += '<td width=\"106\" height=\"26\" align=\"center\" bgcolor=\"#4F7637\" class=\"font\">Saturday</td>'; calendarString += '</tr>'; thisDate == 1; for (var i = 1; i <= 6; i++) { calendarString += '<tr>'; for (var x = 1; x <= 7; x++) { daycounter = (thisDate - firstDay)+1; thisDate++; if ((daycounter > numbDays) || (daycounter < 1)) { calendarString += '<td align=\"center\" bgcolor=\"#F2F8ED\" width=\"106\"> <\/td>'; } else { if (checkevents(daycounter,monthNum,yearNum,i,x) || ((todaysDay == x) && (todaysDate == daycounter) && (todaysMonth == monthNum))){ if ((todaysDay == x) && (todaysDate == daycounter) && (todaysMonth == monthNum)) { calendarString += '<td align=\"center\" bgcolor=\"#F2F8ED\" width=\"106\"> </td>'; } else{ var showevent=showevents(daycounter,monthNum,yearNum,"i","x"); calendarString += '<td align=\"center\" bgcolor=\"#F2F8ED\" width=\"106\">'+ showevent + daycounter + '<\/td>'; var showevent=showevents(daycounter,monthNum,yearNum,"i","x"); } } else { calendarString += '<td align=\"center\" bgcolor=\"#F2F8ED\" width=\"106\">' + daycounter + '<\/td>'; } } } calendarString += '<\/tr>'; } '<\/table>'; var object=document.getElementById('calendar'); object.innerHTML= calendarString; thisDate = 1; } function checkevents(day,month,year,week,dayofweek) { var numevents = 0; var floater = 0; for (var i = 0; i < events.length; i++) { document.write(events[0][0]); if (events[0][0] == "W") { if ((events[0][2] == dayofweek)) numevents++; } else if (events[0][0] == "Y") { if ((events[0][2] == day) && (events[0][1] == month) && (events[0][3] == year) ) numevents++; } else if (events[0][0] == "F") { if ((events[0][1] == 3) && (events[0][2] == 0) && (events[0][3] == 0) ) { easter(year); if (easterday == day && eastermonth == month) numevents++; } else { floater = floatingholiday(year,events[1],events[2],events[3]); if ((month == 5) && (events[1] == 5) && (events[2] == 4) && (events[3] == 2)) { if ((floater + 7 <= 31) && (day == floater + 7)) { numevents++; } else if ((floater + 7 > 31) && (day == floater)) numevents++; } else if ((events[0][1] == month) && (floater == day)) numevents++; } } else if ((events[0][2] == day) && (events[0][1] == month) && (events[0][3] == year)) { numevents++; } } if (numevents == 0) { return false; } else { return true; } } function showevents(day,month,year,week,dayofweek) { var theevent = ""; var floater = 0; var eventhan="ww"; for (var i = 0; i < events.length; i++) { if (events[0] != "") { // First we'll process recurring events (if any): if (events[0] == "Y") { if ((events[2]==day) && (events[1] == month) && (events[3] == year) ) { theevent += events[6] + '\n'; theevent += '\n -------------- \n\n'; return theevent; } } } } } function floatingholiday(targetyr,targetmo,cardinaloccurrence,targetday) { // Floating holidays/events of the events.js file uses: // the Month field for the Month (here it becomes the targetmo field) // the Day field as the Cardinal Occurrence (here it becomes the cardinaloccurrence field) // 1=1st, 2=2nd, 3=3rd, 4=4th, 5=5th, 6=6th occurrence of the day listed next // the Year field as the Day of the week the event/holiday falls on (here it becomes the targetday field) // 1=Sunday, 2=Monday, 3=Tuesday, 4=Wednesday, 5=Thurday, 6=Friday, 7=Saturday // example: "F", "1", "3", "2", = Floating holiday in January on the 3rd Monday of that month. // // In our code below: // targetyr is the active year // targetmo is the active month (1-12) // cardinaloccurrence is the xth occurrence of the targetday (1-6) // targetday is the day of the week the floating holiday is on // 0=Sun; 1=Mon; 2=Tue; 3=Wed; 4=Thu; 5=Fri; 6=Sat // Note: subtract 1 from the targetday field if the info comes from the events.js file // // Note: // If Memorial Day falls on the 22nd, 23rd, or 24th, then we add 7 to the dayofmonth to the result. // // Example: targetyr = 2052; targetmo = 5; cardinaloccurrence = 4; targetday = 1 // This is the same as saying our floating holiday in the year 2052, is during May, on the 4th Monday // var firstdate = new Date(String(targetmo)+"/1/"+String(targetyr)); // Object Storing the first day of the current month. var firstday = firstdate.getUTCDay(); // The first day (0-6) of the target month. var dayofmonth = 0; // zero out our calendar day variable. targetday = targetday - 1; if (targetday >= firstday) { cardinaloccurrence--; // Subtract 1 from cardinal day. dayofmonth = (cardinaloccurrence * 7) + ((targetday - firstday)+1); } else { dayofmonth = (cardinaloccurrence * 7) + ((targetday - firstday)+1); } return dayofmonth; } </script> </head> <body class="homebg" onload="changedate('return')"> <%@ include file="includes/header.jsp" %> <table width="781" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td class="intab" align="left" valign="top"><table width="765" border="0" cellspacing="0" cellpadding="0"> <tr> <td class="tdpad2" align="left" valign="top"> <center> <table id="evtcal" border="0" cellpadding="0" cellspacing="0" width="584"> <tbody> <tr> <td style="padding: 3px;" align="center" bgcolor="#FFFFFF" valign="top" width="314"> <div id="calendar"><!-- Dynamically Filled --></div> </td> <td width="10"> </td> </tr> </tbody> </table> </center> </td> </tr> </table></td> </tr> </table> <%@ include file="includes/footer.jsp" %> </body> </html> [/javascript] Anybody could you plz advice what changes i have to make