I am writing a script to display multiple world clocks in the same window. When I add the first clock its working fine, but when I add the second clock it just duplicates the first clock. It also doesn't tick.
When I try to change the zone it updates the first clock.
<SCRIPT language="javascript">
function addRow(tableID) {
var table = document.getElementById(tableID);
var rowCount = table.rows.length;
var row = table.insertRow(rowCount);
var colCount = table.rows[0].cells.length;
for(var i=0; i<colCount; i++) {
var newcell = row.insertCell(i);
newcell.innerHTML = table.rows[0].cells[i].innerHTML;
//alert(newcell.childNodes);
switch(newcell.childNodes[0].type) {
case "text":
newcell.childNodes[0].value = "";
break;
case "checkbox":
newcell.childNodes[0].checked = false;
break;
case "select-one":
newcell.childNodes[0].selectedIndex = 0;
break;
}
}
}
function deleteRow(tableID) {
try {
var table = document.getElementById(tableID);
var rowCount = table.rows.length;
for(var i=0; i<rowCount; i++) {
var row = table.rows[i];
var chkbox = row.cells[0].childNodes[0];
if(null != chkbox && true == chkbox.checked) {
if(rowCount <= 1) {
alert("Cannot delete all the rows.");
break;
}
table.deleteRow(i);
rowCount--;
i--;
}
}
}catch(e) {
alert(e);
}
}
</SCRIPT>
<script language="javascript">
var timerRunning = false;
var timezone = "Greenwich Mean Time"; // what time zone are you in ?
var adjust = 0;
function timeCheck(diff) {
if (timerRunning) {
clearTimeout(updatetime);
timerRunning = false;
}
gmtOffset = eval(diff);
checkDateTime();
}
function checkDateTime() {
var today = new Date();
var year = today.getYear() + 1900;
var month = today.getMonth()+1;
var date = today.getDate();
var day = today.getDay();
var hour = today.getHours();
var minute = today.getMinutes();
var second = today.getSeconds();
var lastSat = date - (day+1);
while (lastSat < 32) lastSat+=7;
if (lastSat > 31) lastSat+=-7;
var firstSat = date - (day+1);
while (firstSat > 0) firstSat+=-7;
if (firstSat < 1) firstSat+=7;
if ((((month == 4) && (date >= firstSat)) || month > 4) &&
(month < 11 || ((month == 10) && day <= lastSat))) adjust += 60;
yourOffset = (new Date()).getTimezoneOffset();
yourOffset = yourOffset + adjust;
var xx = navigator.appName
var xy = navigator.appVersion;
xy = xy.substring(0,1);
if ((xy == 4) && (xx == "Netscape")) yourOffset = yourOffset+adjust;
if ((((month == 4) && (date > 20)) || month > 4) && (month < 11 || ((month == 10) &&
day < 30))) adjust -= 60;
ourDifference = eval(gmtOffset - yourOffset);
var half = eval(ourDifference % 60);
ourDifference = Math.round(ourDifference / 60);
hour = eval(hour - ourDifference);
var m = new Array("",
"Jan","Feb","Mar",
"Apr","May","Jun",
"Jul","Aug","Sept",
"Oct","Nov","Dec");
var leap = eval(year % 4);
if ((half == -30) || (half == 30)) minute += 30;
if (minute > 59) minute -= 60, hour++;
if (minute < 0) minute += 60, hour--;
if (hour > 23) hour -= 24, date += 1;
if (((month == 4) || (month == 6) ||
(month == 9) || (month == 11)) && (date==31)) date = 1, month ++;
if (((month == 2) && (date > 28)) && (leap != 0)) date = 1, month ++;
if ((month == 2) && (date > 29)) date = 1, month++;
if (hour < 0) hour += 24, date --;
if ((date == 32) && (month == 12)) month = m[1], date = 1, year++;
if (date == 32) date = 1, month++;
if ((date < 1) && (month == 1)) month= m[12], date = 31, year--;
if (date < 1) date = 31, month --;
if (((month == 4) || (month == 6) ||
(month== 9) || (month == 11)) && (date == 31)) date = 30;
if ((month == 2) && (date > 28)) date = 29;
if (((month == 2) && (date > 28)) && (leap != 0)) date=28;
for (i=1; i<13; i++) {
if (month == i) {
month = m[i]; break;
}
}
var dateTime = hour;
dateTime = ((dateTime < 10) ? "0":"") + dateTime;
dateTime = " " + dateTime;
dateTime += ((minute < 10) ? ":0" : ":") + minute;
dateTime += ((second < 10) ? ":0" : ":") + second;
dateTime += (hour >= 12) ? " PM, " : " AM, ";
dateTime += month + " " + date + ", " + year;
document.getElementById("zonetime").innerHTML = dateTime;
updatetime=setTimeout("checkDateTime()", 900);
timerRunning = true;
}
</script>
<INPUT type="button" value="Add Clock" onclick="addRow('dataTable')" />
<INPUT type="button" value="Delete Clock" onclick="deleteRow('dataTable')" /><br/><br/>
<TABLE id="dataTable" width="350px" border="1" align="center">
<TR>
<TD><INPUT type="checkbox" name="chk"/></TD>
<TD>
<select onchange="timeCheck(this.value)" size="0" align="center">
<option value="">SELECT --> COUNTRY</option>
<option value="+480">Pacific</option> // Australia UTC offset value is 10
<option value="+420">Central</option>
<option value="+300">Estern</option>
<option value="+600">Hawaii</option>
<option value="+360">Mexico</option>
<option value="-330">New Delhi</option>
<option value="-480">HONG KONG</option>
<option value="-540">TOKYO</option>
<option value="+0">London</option>
</select>
</TD>
<TD><div id="zonetime"></div></TD>
</TR>
</TABLE>