Google Script Not Iterating Through Rows - google-apps-script

Question

I have a google script that changes the event dates to the day of the year, so 8/26/15 is 237, and also changes today's date to it's day of the year. It then compares the event date day of the year against today's date day of the year. If the event date integer is smaller than today's date integer than it changes the event description in the google calendar to Event Closed. The problem is it only does this for the first event in the spreadsheet. It does not iterate through all of the events and change all of the event descriptions that are before today's date.
function compareDates(){
var sheet = SpreadsheetApp.getActive().getSheetByName("Events");
var data = sheet.getDataRange().getValues();
var headerRow = 1;
var i = 1;
for (i = 1; i < data.length; i += 1) {
var row = data[i];
var room = row[5];
var description = row[6];
var agegroup = row[7];
var registration = row[8];
var calname = row[14];
var registrants = row[17];
var id = sheet.getRange(headerRow + 1, 16).getValues();
var event = CalendarApp.getEventSeriesById(id);
var description1 = (description + '\n' + '\n<b>Room:</b> ' + room + '\n' + '\n<b>Event Type:</b> ' + calname + '\n' + '\n<b>Age Group:</b> ' + agegroup);
var today = parseInt(Utilities.formatDate(new Date(sheet.getRange("U2").getValues()), "EST", "D"));
var eventDate = parseInt(Utilities.formatDate(new Date(row[0]), "EST", "D"));
var testED = sheet.getRange(headerRow + i, 22).setValue(eventDate);//To see if var Today works.
var testT = sheet.getRange(headerRow + i, 23).setValue(today);//To see if var eventDate works.
if (today > eventDate && registration === 'Y') {
var descriptionHTMLEC = '\n <div id="registration_button" ><a style="text-align:right;color:white!important;text-decoration:bold;background-color:rgb(121,183,138);background-image:-webkit-linear-gradient(top,rgb(221,75,57),rgb(121,183,138nnn ));color:#ffffff;border:1px solid rgba(0,0,0,0);border-radius:2px;display:inline-block;font-size:12px;font-weight:bold;height:27px;line-height:27px;padding:0px 20px 0px 20px;text-align:center;text-transform:uppercase;white-space:nowrap;text-decoration:none;color:white" target="_blank">Event Closed</a>';
var descriptionRegistrationEC = (description1 + '\n' + '\n' + descriptionHTMLEC);
event.setDescription(descriptionRegistrationEC);
}
}
}

Answer 1

It seems you are modifying the same event on each iteration. The statement:
var id = sheet.getRange(headerRow + 1, 16).getValues();
Will assign the same value to id each time. Shouldn't it be:
var id = sheet.getRange(headerRow + i, 16).getValues();
For more readable code you can just the getTime() function on the date object.
var today = new Date(sheet.getRange("C2").getValues()).getTime();
var eventDate = new Date(row[0]).getTime();