Widget:Mayan calendar

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

Ancient Mayan Calendars

<tbody> </tbody>

<tbody> </tbody> Year <input type="text" name="year" value="2008" size="5"> Month <select name="month"> <option>January</option> <option>February</option> <option>March</option> <option>April</option> <option>May</option> <option>June</option> <option>July</option> <option>August</option> <option>September</option> <option>October</option> <option>November</option> <option>December</option> </select> Day <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> Correlation Number <select name="corrType"> <option>584,283</option> <option>584,285</option> </select> <input type="button" style="color:#a91200" value="Calculate" onclick="maya(document.dayForm)">

<tbody> </tbody> <input type="button" name="ybrad" value="9" size="5"> <input type="button" name="yb" value="Eb" size="9"> Year Bearer <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="winal" value="2" size="4"> Winal <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"> Lord of the Night

</form>

<script>

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

if (yb==1)date.yb.value ="Imix"; else if (yb==2) date.yb.value ="Ikk"; else if (yb==3) date.yb.value ="Akbal"; else if (yb==4) date.yb.value ="Kan"; else if (yb==5) date.yb.value ="Chicchan"; else if (yb==6) date.yb.value ="Kimi"; else if (yb==7) date.yb.value ="Manik"; else if (yb==8) date.yb.value ="Lamat"; else if (yb==9) date.yb.value ="Muluc"; else if (yb==10) date.yb.value ="Oc"; else if (yb==11) date.yb.value ="Chuen"; else if (yb==12) date.yb.value ="Eb"; else if (yb==13) date.yb.value ="Ben"; else if (yb==14) date.yb.value ="Ix"; else if (yb==15) date.yb.value ="Men"; else if (yb==16) date.yb.value ="Cib"; else if (yb==17) date.yb.value ="Caban"; else if (yb==18) date.yb.value ="Etznab"; else if (yb==19) date.yb.value ="Cauac"; else if (yb==0) date.yb.value ="Ahau"; else if (yb>19) date.yb.value = "error";

      		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;

	}
  // -->

</script>