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JavaScript - Extremely New To This- Can Anyone Help????

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Extremely New To This- Can Anyone Help????	View Content

Hi- I'm taking a programming course and am in over my head. The course is external and I am struggling!

I don't think I am searching or collecting the right information with my code. I am asking a user for their date of birth and then outputting some information for them.
I need to calculate their month of birth as a number, create a date object for their dob, create a date object for the current time, the users age in milliseconds, age in days.

This is what I have, can anyone help????

<html>
<head>
<script>

//Constants to be used

Months ='janfebmaraprmayjunjulaugsepoctnovdec';
PI = 3.14159265358979323846;
Milliseconds_per_day = 1000*60*60*24;
Milliseconds_per_year = (Milliseconds_per_day*365.2424);
Length_of_Intellectual_Cycle = 33;
Length_of_Emotional_Cycle = 28;
Length_of_Physical_Cycle = 23;

//Variables to be used

var yearOfBirth = prompt('Enter your year of birth','19XX');
var monthOfBirth = prompt('Enter your month of birth','January');
var dateOfBirth = prompt('Enter your day of birth','1-31');
var inputDayofBirth;
var currentTime= new Date;
var inputAgeMilliseconds;
var inputAgeYears;
var inputAgeMonths;
var inputDateOfBirth;

// Calculate users Month of Birth
monthOfBirth = (monthOfBirth.slice(0,3));
monthOfBirth = (monthOfBirth.toLowerCase());
monthOfBirth = (Months.indexOf(monthOfBirth));
monthOfBirth = (monthOfBirth/3);

//Date object
inputDateOfBirth = new Date(+yearOfBirth,+monthOfBirth,+dateOfBirth,0,0,0);
DOB = new Date(+yearOfBirth,+monthOfBirth,+dateOfBirth,0,0,0);

//Age Calculations
inputAgeMilliseconds = (currentTime.getTime()-'DOB');
inputAgeYears = (inputAgeMilliseconds/Milliseconds_per_year);
inputAgeDays = (inputAgeMilliseconds/Milliseconds_per_day);

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JavaScript - Extremely New To This- Can Anyone Help????

Extremely New To This- Can Anyone Help????

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