Widget:Calendario maya

<form name="dayForm" style="margin:0; padding:0">

           Calendario maya

<tbody> </tbody>

<tbody> </tbody> Año <input type="text" name="year" value="2017" size="5"> Mes <select name="month"> <option>Enero</option> <option>Febrero</option> <option>Marzo</option> <option>Abril</option> <option>Mayo</option> <option>Junio</option> <option>Julio</option> <option>Agosto</option> <option>Septiembre</option> <option>Octubre</option> <option>Noviembre</option> <option>Diciembre</option> </select> Día <select name="day"> <option>1</option> <option>2</option> <option>3</option> <option>4</option> <option>5</option> <option>6</option> <option>7</option> <option>8</option> <option>9</option> <option>10</option> <option>11</option> <option>12</option> <option>13</option> <option>14</option> <option>15</option> <option>16</option> <option>17</option> <option>18</option> <option>19</option> <option>20</option> <option>21</option> <option>22</option> <option>23</option> <option>24</option> <option>25</option> <option>26</option> <option>27</option> <option>28</option> <option>29</option> <option>30</option> <option>31</option> </select> Correlativo (calendario juliano) <select name="corrType"> <option>584,283</option> <option>584,285</option> </select> <input type="button" style="color:#000000" value="Calcular" onclick="maya(document.dayForm)">

<tbody> </tbody> <input type="button" name="ybrad" value="9" size="5"> <input type="button" name="yb" value="Eb" size="9"> Día <input type="button" name="baktun" value="12" size="4"> Baktun <input type="button" name="katun" value="19" size="4"> Katun <input type="button" name="tun" value="15" size="4"> Tun <input type="button" name="uinal" value="2" size="4"> Uinal <input type="button" name="kin" value="2" size="4"> Kin <input type="button" name="tzolrad" value="1" size="5">, <input type="button" name="tzolkin" value="Ik" size="9"> Tzolkin <input type="button" name="haabrad" value="10" size="5">, <input type="button" name="haab" value="Kayab" size="9"> Haab' <input type="button" name="lon" value="6" size="4"> Señor de la noche

</form>

<script>

   function maya(date) {
       year = Number(date.year.value);
       month = date.month.selectedIndex + 1;
       day = date.day.selectedIndex + 1;

       julianday = getjulian(year, month, day);

       if (date.corrType.selectedIndex == 1) {
           corrNumber = 584285;
       } else {
           corrNumber = 584283;
       }

       days = julianday - corrNumber;
       xdays = days;

       baktun = Math.floor(xdays / 144000);
       date.baktun.value = baktun;
       xdays -= baktun * 144000;
       katun = Math.floor(xdays / 7200);
       date.katun.value = katun;
       xdays -= katun * 7200;
       tun = Math.floor(xdays / 360);
       date.tun.value = tun;
       xdays -= tun * 360;
       uinal = Math.floor(xdays / 20);
       date.uinal.value = uinal;

       kin = xdays - (uinal * 20);
       date.kin.value = kin;

       xdays = days - (260 * (Math.floor(days / 260)));

       tzolradical = 4 + xdays - (13 * (Math.floor((xdays + 3) / 13)));
       date.tzolrad.value = tzolradical;
       tzolkin = xdays - (20 * (Math.floor((xdays) / 20)));

       if (tzolkin == 1) {
           date.tzolkin.value = "Imix";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 2) {
           date.tzolkin.value = "Ik";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 3) {
           date.tzolkin.value = "Ak'bal";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 4) {
           date.tzolkin.value = "K'an";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 5) {
           date.tzolkin.value = "Chikchan";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 6) {
           date.tzolkin.value = "Kimi";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 7) {
           date.tzolkin.value = "Manik";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 8) {
           date.tzolkin.value = "Lamat";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 9) {
           date.tzolkin.value = "Muluk";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 10) {
           date.tzolkin.value = "Ok";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 11) {
           date.tzolkin.value = "Chuen";
           document.getElementById("tzolkinimg").innerHTML = '<img src="http://cnbguatemala.org/wiki/Archivo:Chuen.gif" width="64px">';
       }
       else if (tzolkin == 12) {
           date.tzolkin.value = "Eb";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 13) {
           date.tzolkin.value = "Ben";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 14) {
           date.tzolkin.value = "Ix";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 15) {
           date.tzolkin.value = "Men";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 16) {
           date.tzolkin.value = "Kib";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 17) {
           date.tzolkin.value = "Kaban";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 18) {
           date.tzolkin.value = "Etz'nab";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 19) {
           date.tzolkin.value = "Kawak";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin == 0) {
           date.tzolkin.value = "Ajau";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (tzolkin > 19) date.tzolkin.value = "error";

       xdays = days + 348 - (365 * (Math.floor((days + 348) / 365)));

       haabradical = xdays - (20 * (Math.floor(xdays / 20)));
       date.haabrad.value = haabradical;

       if (xdays > 360) date.haab.value = "Uayeb";

       haabkin = Math.floor(xdays / 20);

       if (haabkin == 0) {
           date.haab.value = "Pop";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 1) {
           date.haab.value = "Uo";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 2) {
           date.haab.value = "Zip";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 3) {
           date.haab.value = "Zotz";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 4) {
           date.haab.value = "Tzec";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 5) {
           date.haab.value = "Xul";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 6) {
           date.haab.value = "Yaxkin";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 7) {
           date.haab.value = "Mol";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 8) {
           date.haab.value = "Chen";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 9) {
           date.haab.value = "Yax";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 10) {
           date.haab.value = "Zac";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 11) {
           date.haab.value = "Ceh";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 12) {
           date.haab.value = "Mac";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 13) {
           date.haab.value = "Kankin";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 14) {
           date.haab.value = "Muwan";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 15) {
           date.haab.value = "Pax";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 16) {
           date.haab.value = "Kayab";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else if (haabkin == 17) {
           date.haab.value = "Cumkú";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }
       else {
           date.haab.value = "Uayeb";
           document.getElementById("haabimg").innerHTML = '<img src="" width="64px">';
       }

       lonight = days - (9 * (Math.floor((days - 1) / 9)));
       date.lon.value = lonight;

       yb = (tzolkin - haabradical) % 20;
       if (yb <= 0) yb = yb + 20;

       if (yb == 1) {
           date.yb.value = "Imix";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 2) {
           date.yb.value = "Ik";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 3) {
           date.yb.value = "Ak'bal";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 4) {
           date.yb.value = "K'an";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 5) {
           date.yb.value = "Chikchan";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 6) {
           date.yb.value = "Kimi";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 7) {
           date.yb.value = "Manik";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 8) {
           date.yb.value = "Lamat";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 9) {
           date.yb.value = "Muluk";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 10) {
           date.yb.value = "Ok";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 11) {
           date.yb.value = "Chuen";
           document.getElementById("tzolkinimg").innerHTML = '<img src="http://cnbguatemala.org/wiki/Archivo:Chuen.gif" width="64px">';
       }
       else if (yb == 12) {
           date.yb.value = "Eb";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 13) {
           date.yb.value = "Ben";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 14) {
           date.yb.value = "Ix";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 15) {
           date.yb.value = "Men";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 16) {
           date.yb.value = "Kib";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 17) {
           date.yb.value = "Kaban";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 18) {
           date.yb.value = "Etz'nab";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 19) {
           date.yb.value = "Kawak";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }
       else if (yb == 0) {
           date.yb.value = "Ajau";
           document.getElementById("tzolkinimg").innerHTML = '<img src="" width="64px">';
       }

       ybrad = (tzolradical - haabradical - (haabkin * 7)) % 13

       if (ybrad <= 0) ybrad = ybrad + 13;
       date.ybrad.value = ybrad;

   }

   function getjulian(year, month, day) {

       if (month < 3) {
           month += 12;
           year -= 1
       }
       ;

       a = Math.floor(year / 100);
       b = 2 - a + Math.floor(a / 4);
       j = Math.floor(365.25 * (year + 4716)) +
           Math.floor(30.6001 * (month + 1)) +
           day + b - 1524;

       return j;

   }

   //A required global variable for the loadImages() function
   loadedImages = null;

   function loadImages() {
       var img;
       if (document.images) {
           if (!loadedImages) loadedImages = new Array();
           for (var i = 0; i < arguments.length; i++) {
               img = new Image();
               img.src = arguments[i];
               loadedImages[loadedImages.length] = img;
           }
       }
   }

   /**
    * flip(imgName, imgSrc) sets the src attribute of a named
    * image in the current document. The function must be passed
    * two strings. The first is the name of the image in the document
    * and the second is the source to set it to.
    **/
   function flip(imgName, imgSrc) {
       if (document.images) {
           document[imgName].src = imgSrc
       }
   }

   //-->

</script>