Birth Date Calculator using JavaScript

< div class = "porson1" > Enter Your Birth Date: - < input type = "text"
id = "date" / > < button type = "button"
onclick = "mydate()" > Submit < /button>
<br / > (Date Like(1993, 08, 19)) < p id = "aa"
style = "visibility: hidden" > Mile Second < /p>
<p id="subfull">
Mile Second</p > < p id = "bb" > Second < /p>
<p id="cc">
Minute</p > < p id = "dd" > Hour < /p>
<p id="ee">
Day</p > < p id = "ff" > Year < /p>
<p id="full" style="visibility: hidden">
full</p > < script type = "text/javascript" > function mydate() {
    var d;
    d = document.getElementById("date").value;
    var date = new Date();
    document.getElementById("full").innerHTML = date.getTime();
    var dat = new Date(d);
    document.getElementById("aa").innerHTML = +dat.getTime();
    var tot;
    tot = date - dat;
    document.getElementById("subfull").innerHTML = "Your Birthday to today Mile Second is :" + tot;
    var text;
    text = tot / 1000;
    document.getElementById("bb").innerHTML = "Your Birthday to today Second is :" + text;
    var min;
    min = text / 60;
    document.getElementById("cc").innerHTML = "Your Birthday to today Minute is :" + min;
    var hour;
    hour = min / 60;
    document.getElementById("dd").innerHTML = "Your Birthday to today Hour is :" + hour;
    var day, days;
    day = hour / 24;
    days = Math.floor(day);
    document.getElementById("ee").innerHTML = "Your Birthday to today Days is :" + days;
    var yer, yea;
    yer = days / 365;
    yea = Math.floor(yer);
    document.getElementById("ff").innerHTML = "Your Birthday to today Years is :" + yea;
} < /script>
</div >

< div class = "porson2" > Enter partner Birth Date: - < input type = "text"
id = "ta" / > < button type = "button"
onclick = "myd()" > Submit < /button>
<br / > (Date Like(1993, 08, 19)) < p id = "pa"
style = "visibility: hidden" > Mile Second < /p>
<p id="pb">
Mile Second</p > < p id = "pc" > Second < /p>
<p id="pd">
Minute</p > < p id = "pe" > Hour < /p>
<p id="pf">
Day</p > < p id = "pg" > Year < /p>
<p id="ph" style="visibility: hidden">
full</p > < script type = "text/javascript" > function myd() {
    var d1;
    d1 = document.getElementById("ta").value;
    var date1 = new Date();
    document.getElementById("ph").innerHTML = date1.getTime();
    var dat1 = new Date(d1);
    document.getElementById("pa").innerHTML = +dat1.getTime();
    var tot1;
    tot1 = date1 - dat1;
    document.getElementById("pb").innerHTML = "Your Birthday to today Mile Second is :" + tot1;
    var text1;
    text1 = tot1 / 1000;
    document.getElementById("pc").innerHTML = "Your Birthday to today Second is :" + text1;
    var min1;
    min1 = text1 / 60;
    document.getElementById("pd").innerHTML = "Your Birthday to today Minute is :" + min1;
    var hour1;
    hour1 = min1 / 60;
    document.getElementById("pe").innerHTML = "Your Birthday to today Hour is :" + hour1;
    var day1, days1;
    day1 = hour1 / 24;
    days1 = Math.floor(day1)
    document.getElementById("pf").innerHTML = "Your Birthday to today Days is :" + days1;
    var yer1, yea1;
    yer1 = days1 / 365;
    yea1 = Math.floor(yer1);
    document.getElementById("pg").innerHTML = "Your Birthday to today Years is :" + yea1;
} < /script>
</div >