MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
$(function () {

  var myElement = document.getElementById('jsexample');

var input= document.createElement("input");
input.type = "text";
myElement.appendChild(input);

var sdin= document.createElement("input");
sdin.type = "text";
sdin.onKeyUp='calculate_out()'
myElement.appendChild(sdin);

var day_out=document.createElement("output");
day_out.type = "text";
myElement.appendChild(day_out);

        function daysInYear(year) {
    if(year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0)) {
        // Leap year
        return 366;
    } else {
        // Not a leap year
        return 365;
    }
}

function dayOfYear(dn, mn, yn) {   // d is a Date object
var d1 = new Date(yn,0,1,12,0,0); // noon on Jan. 1
var d2 = new Date(yn,mn-1,dn,12,0,0); // noon on input date
var ddiff = Math.round((d2-d1)/864e5);
return ddiff+1; }

       
        function calculate ()
        {
          var day = document.getElementById('day').value;
          var month = document.getElementById('month').value;
          var year = document.getElementById('year').value;
          var hour = document.getElementById('hour').value;
          var minute = document.getElementById('minute').value;

          var ydays = daysInYear(year);
          var aday = dayOfYear(day, month, year);
                    
          var tmp = ((1/ydays * ( aday - 1 + hour/24 + minute/1440)) - 2323 + year/1);
          var stardate = 1000 * ( year/1 + (1/ydays * ( aday - 1 + hour/24 + minute/1440)) -2323 );
         
          document.getElementById('stardate_out').innerHTML = stardate;
        }

        function calculate_out ()
        {
          var stardate =sdin.value;
          
          var tmp = stardate/1000 + 2323;
          var year = Math.floor(tmp);
          
          var ydays = daysInYear(year);

          var tmpd = (tmp - year) * ydays + 1;
          var aday = Math.floor(tmpd);
          
	  var d1 = new Date(year,0,1,12,0,0); // noon on Jan. 1
	  var d2 = (aday - 1)*864e5 + d1.getTime();
	  var mydate = new Date(d2);

          var day = mydate.getDate();
          var month = mydate.getMonth() + 1;
          
          
          var tmph = (tmpd - aday) * 24;
          var hour = Math.floor(tmph);
          
          var tmpz = (tmph - hour) * 60;
          var minute = Math.floor(tmpz);

                    
        
          document.getElementById('year_out').innerHTML = year;
          document.getElementById('month_out').innerHTML = month;
          document.getElementById('day_out').innerHTML = day;
          document.getElementById('hour_out').innerHTML = hour;
          document.getElementById('minute_out').innerHTML = minute;
          day_out.value= day;

        }





}());