//-- Original:  James Thiele (mailto:jet@eskimo.com) -->

//-- This script and many more are available free online at -->
//-- The JavaScript Source!! http://javascript.internet.com -->

var black = "../images/black.gif";
var white = "../images/white.gif";

var height=1;
var size = 30;
var i;
var currentDate  = new Date();
var x = currentDate;
currentDate.setTime(currentDate.getTime() + (currentDate.getTimezoneOffset()*60000));
var blueMoonDate = new Date(96, 1, 3, 16, 15, 0);
var lunarPeriod  = 29*(24*3600*1000) + 12*(3600*1000) + 44.05*(60*1000);



function moonPhase(currentDate) {
var black = "../images/black.gif";
var white = "../images/white.gif";

var height=1;
var size = 30;
var i;
var x = currentDate;
//currentDate.setTime(currentDate.getTime() + (currentDate.getTimezoneOffset()*60000));
var blueMoonDate = new Date(96, 1, 3, 16, 15, 0);
var lunarPeriod  = 29*(24*3600*1000) + 12*(3600*1000) + 44.05*(60*1000);



//currentDate.setTime(currentDate.getTime() + (currentDate.getTimezoneOffset()*60000));
var moonPhaseTime = (currentDate.getTime() - blueMoonDate.getTime()) % lunarPeriod;
var percentRaw = (moonPhaseTime / lunarPeriod);
var percent    = Math.round(100*percentRaw) / 100;
var percentBy2 = Math.round(200*percentRaw);
var left  = (percentRaw >= 0.5) ? black : white;
var right = (percentRaw >= 0.5) ? white : black;
var time = Math.round((lunarPeriod-moonPhaseTime)/(24*3600*1000));

document.write('<div align="center">' + currentDate.toLocaleString() + '<br />');

if (percentBy2 > 100) {
percentBy2 = percentBy2 - 100;
}
for (i = -(size-1); i < size; ++i) {
var wid=2*parseFloat(Math.sqrt((size*size)-(i*i)));
if (percentBy2 != 100)
document.write ("<img src="+left +" height=1 width="+(wid*((100-percentBy2)/100))+">");
if (percentBy2 != 0)
document.write("<img src="+right+" height=1 width="+(wid*((percentBy2)/100))+">");
document.write("<br />");
}
document.write('<br /><span style="font-size:large;">Next full moon is in about ',time,' day');
if (time > 1) document.write("s");
document.write("</font>");
document.write('<table align="center" cellpadding="10"><tr><td><a href="javascript:history.go(-1);">Back</a></td>');
document.write('</tr></table></div>');
//  End -->
}