//<!--//<![CDATA[
// Solar Eclipse Calculator for Google Maps (Xavier Jubier: http://xjubier.free.fr/)
//
// Some of the code is inspired by Chris O'Byrne (http://www.chris.obyrne.com/)
//

/*
Release:
2007-07-06    Xavier Jubier, Fred Espenak, Sumit Dutta    Version for NASA's Solar Eclipse Google Maps
*/

//
// Observer constants -
// (0) North Latitude (radians)
// (1) West Longitude (radians)
// (2) Altitude (meters)
// (3) West time zone (hours)
// (4) rho sin O'
// (5) rho cos O'
//
var obsvconst = new Array();

//
// Eclipse circumstances
//   (0) Event type (C1=-2, C2=-1, Mid=0, C3=1, C4=2)
//   (1) t
// -- time-only dependent circumstances (and their per-hour derivatives) follow --
//   (2) x
//   (3) y
//   (4) d
//   (5) sin d
//   (6) cos d
//   (7) mu
//   (8) l1
//   (9) l2
// (10) dx
// (11) dy
// (12) dd
// (13) dmu
// (14) dl1
// (15) dl2
// -- time and location dependent circumstances follow --
// (16) h
// (17) sin h
// (18) cos h
// (19) xi
// (20) eta
// (21) zeta
// (22) dxi
// (23) deta
// (24) u
// (25) v
// (26) a
// (27) b
// (28) l1'
// (29) l2'
// (30) n^2
// -- observational circumstances follow --
// (31) alt
// (32) azi
// (33) m (max eclipse) // not mid eclipse
// (34) magnitude (max eclipse) // not mid eclipse
// (35) local event type (0 = none, 1 = partial, 2 = annular, 3 = total)
//
var c1 = new Array();
var c2 = new Array();
var mid = new Array();
var c3 = new Array();
var c4 = new Array();

// Latitude to text
function latitudeToString(latitude) {
   var txt = "";
   var latt = Math.round(latitude * 10000) / 10000.0;
   if (latt > 0) {
      txt = latt + "&deg; N";
   }
   else if (latt < 0) {
      var uneg = -1 * latt;
      txt = uneg + "&deg; S";
   }
   else {
      txt = "0&deg;";
   }
   return txt;
}

// Longitude to text
function longitudeToString(longitude) {
   var txt = "";
   var longt = Math.round(longitude * 10000) / 10000.0;
   if (longt > 0) {
      txt = longt + "&deg; E";
   }
   else if (longt < 0) {
      var uneg = -1 * longt;
      txt = uneg + "&deg; W";
   }
   else {
      txt = "0&deg;";
   }
   return txt;
}

//
// Populate the circumstances array with the time-only dependent circumstances (x, y, d, m, ...)
function timedependent(circumstances) {
   var t = circumstances[1];
   // x
   var ans = elements[8] * t + elements[7];
   ans = ans * t + elements[6];
   ans = ans * t + elements[5];
   circumstances[2] = ans;
   // dx
   ans = 3.0 * elements[8] * t + 2.0 * elements[7];
   ans = ans * t + elements[6];
   circumstances[10] = ans;
   // y
   ans = elements[12] * t + elements[11];
   ans = ans * t + elements[10];
   ans = ans * t + elements[9];
   circumstances[3] = ans;
   // dy
   ans = 3.0 * elements[12] * t + 2.0 * elements[11];
   ans = ans * t + elements[10];
   circumstances[11] = ans;
   // d
   ans = elements[15] * t + elements[14];
   ans = ans * t + elements[13];
   ans = ans * Math.PI / 180.0;
   circumstances[4] = ans;
   // sin d and cos d
   circumstances[5] = Math.sin(ans);
   circumstances[6] = Math.cos(ans);
   // dd
   ans = 2.0 * elements[15] * t + elements[14];
   ans = ans * Math.PI / 180.0;
   circumstances[12] = ans;
   // m
   ans = elements[18] * t + elements[17];
   ans = ans * t + elements[16];
   if (ans >= 360.0) {
      ans = ans - 360.0;
   }
   ans = ans * Math.PI / 180.0;
   circumstances[7] = ans;
   // dm
   ans = 2.0 * elements[18] * t + elements[17];
   ans = ans * Math.PI / 180.0;
   circumstances[13] = ans;
   // l1 and dl1
   var type = circumstances[0];
   if ((type == -2) || (type == 0) || (type == 2)) {
      ans = elements[21] * t + elements[20];
      ans = ans * t + elements[19];
      circumstances[8] = ans;
      circumstances[14] = 2.0 * elements[21] * t + elements[20];
   }
   // l2 and dl2
   if ((type == -1) || (type == 0) || (type == 1)) {
      ans = elements[24] * t + elements[23];
      ans = ans * t + elements[22];
      circumstances[9] = ans;
      circumstances[15] = 2.0 * elements[24] * t + elements[23];
   }

   return circumstances;
}

//
// Populate the circumstances array with the time and location dependent circumstances
function timelocdependent(circumstances) {
   timedependent(circumstances);
   // h, sin h, cos h
   circumstances[16] = circumstances[7] - obsvconst[1] - (elements[4] / 13713.44);
   circumstances[17] = Math.sin(circumstances[16]);
   circumstances[18] = Math.cos(circumstances[16]);
   // xi
   circumstances[19] = obsvconst[5] * circumstances[17];
   // eta
   circumstances[20] = obsvconst[4] * circumstances[6] - obsvconst[5] * circumstances[18] * circumstances[5];
   // zeta
   circumstances[21] = obsvconst[4] * circumstances[5] + obsvconst[5] * circumstances[18] * circumstances[6];
   // dxi
   circumstances[22] = circumstances[13] * obsvconst[5] * circumstances[18];
   // deta
   circumstances[23] = circumstances[13] * circumstances[19] * circumstances[5] - circumstances[21] * circumstances[12];
   // u
   circumstances[24] = circumstances[2] - circumstances[19];
   // v
   circumstances[25] = circumstances[3] - circumstances[20];
   // a
   circumstances[26] = circumstances[10] - circumstances[22];
   // b
   circumstances[27] = circumstances[11] - circumstances[23];
   // l1'
   var type = circumstances[0];
   if ((type == -2) || (type == 0) || (type == 2)) {
      circumstances[28] = circumstances[8] - circumstances[21] * elements[25];
   }
   // l2'
   if ((type == -1) || (type == 0) || (type == 1)) {
      circumstances[29] = circumstances[9] - circumstances[21] * elements[26];
   }
   // n^2
   circumstances[30] = circumstances[26] * circumstances[26] + circumstances[27] * circumstances[27];

   return circumstances;
}

//
// Iterate on C1 or C4
function c1c4iterate(circumstances) {
   var sign, n;

   timelocdependent(circumstances);
   if (circumstances[0] < 0)
      sign = -1.0;
   else
      sign = 1.0;
   var tmp = 1.0;
   var iter = 0;
   while (((tmp > 0.000001) || (tmp < -0.000001)) && (iter < 50)) {
      n = Math.sqrt(circumstances[30]);
      tmp = circumstances[26] * circumstances[25] - circumstances[24] * circumstances[27];
      tmp = tmp / n / circumstances[28];
      tmp = sign * Math.sqrt(1.0 - tmp * tmp) * circumstances[28] / n;
      tmp = (circumstances[24] * circumstances[26] + circumstances[25] * circumstances[27]) / circumstances[30] - tmp;
      circumstances[1] = circumstances[1] - tmp;
      timelocdependent(circumstances);
      iter++;
   }

   return circumstances;
}

//
// Get C1 and C4 data
//    Entry conditions -
//    1. The mid array must be populated
//    2. The magnitude at mid eclipse must be > 0.0
function getc1c4() {
   var n = Math.sqrt(mid[30]);
   var tmp = mid[26] * mid[25] - mid[24] * mid[27];
   tmp = tmp / n / mid[28];
   tmp = Math.sqrt(1.0 - tmp * tmp) * mid[28] / n;
   c1[0] = -2;
   c4[0] = 2;
   c1[1] = mid[1] - tmp;
   c4[1] = mid[1] + tmp;
   c1c4iterate(c1);
   c1c4iterate(c4);
}

//
// Iterate on C2 or C3
function c2c3iterate(circumstances) {
   var sign, n;

   timelocdependent(circumstances);
   if (circumstances[0] < 0)
      sign = -1.0;
   else
      sign = 1.0;
   if (mid[29] < 0.0)
      sign = -sign;
   var tmp = 1.0;
   var iter = 0;
   while (((tmp > 0.000001) || (tmp < -0.000001)) && (iter < 50)) {
      n = Math.sqrt(circumstances[30]);
      tmp = circumstances[26] * circumstances[25] - circumstances[24] * circumstances[27];
      tmp = tmp / n / circumstances[29];
      tmp = sign * Math.sqrt(1.0 - tmp * tmp) * circumstances[29] / n;
      tmp = (circumstances[24] * circumstances[26] + circumstances[25] * circumstances[27]) / circumstances[30] - tmp;
      circumstances[1] = circumstances[1] - tmp;
      timelocdependent(circumstances);
      iter++;
   }

   return circumstances;
}

//
// Get C2 and C3 data
//    Entry conditions -
//    1. The mid array must be populated
//    2. There must be either a total or annular eclipse at the location!
function getc2c3() {
   var n = Math.sqrt(mid[30]);
   var tmp = mid[26] * mid[25] - mid[24] * mid[27];
   tmp = tmp / n / mid[29];
   tmp = Math.sqrt(1.0 - tmp * tmp) * mid[29] / n;
   c2[0] = -1;
   c3[0] = 1;
   if (mid[29] < 0.0) {
      c2[1] = mid[1] + tmp;
      c3[1] = mid[1] - tmp;
   }
   else {
      c2[1] = mid[1] - tmp;
      c3[1] = mid[1] + tmp;
   }
   c2c3iterate(c2);
   c2c3iterate(c3);
}

//
// Get the observational circumstances
function observational(circumstances) {
   var contacttype;

   if (circumstances[0] == 0) {
      contacttype = 1.0;
   }
   else {
      if ((mid[35] == 3) && ((circumstances[0] == -1) || (circumstances[0] == 1))) {
         contacttype = -1.0;
      } else {
         contacttype = 1.0;
      }
   }
   // alt
   var sinlat = Math.sin(obsvconst[0]);
   var coslat = Math.cos(obsvconst[0]);
   circumstances[31] = Math.asin(circumstances[5] * sinlat + circumstances[6] * coslat * circumstances[18]);
   // azi
   circumstances[32] = Math.atan2(-1.0*circumstances[17]*circumstances[6], circumstances[5]*coslat - circumstances[18]*sinlat*circumstances[6]);
}

//
// Calculate max eclipse
function getmid() {
   mid[0] = 0;
   mid[1] = 0.0;
   var iter = 0;
   var tmp = 1.0;
   timelocdependent(mid);
   while (((tmp > 0.000001) || (tmp < -0.000001)) && (iter < 50)) {
      tmp = (mid[24] * mid[26] + mid[25] * mid[27]) / mid[30];
      mid[1] = mid[1] - tmp;
      iter++;
      timelocdependent(mid);
   }
}

//
// Populate the c1, c2, mid, c3 and c4 arrays
function getall() {
   getmid();
   observational(mid);
   // m, magnitude
   mid[33] = Math.sqrt(mid[24]*mid[24] + mid[25]*mid[25]);
   mid[34] = (mid[28] - mid[33]) / (mid[28] + mid[29]);
   if (mid[34] > 0.0) {
      getc1c4();
      if ((mid[33] < mid[29]) || (mid[33] < -mid[29])) {
         getc2c3();
         if (mid[29] < 0.0) {
            mid[35] = 3; // Total solar eclipse
         }
         else {
            mid[35] = 2; // Annular solar eclipse
         }
         observational(c2);
         observational(c3);
         c2[33] = 999.9;
         c3[33] = 999.9;
      }
      else {
         mid[35] = 1; // Partial eclipse
      }
      observational(c1);
      observational(c4);
   }
   else {
      mid[35] = 0; // No eclipse
   }
}

//
// Read the data, and populate the obsvconst array
function readdata(lat, lon) {
   // Get the latitude
   obsvconst[0] = lat;
   obsvconst[0] *= 1;
   obsvconst[0] *= Math.PI / 180.0;

   // Get the longitude
   obsvconst[1] = lon;
   obsvconst[1] *= -1;
   obsvconst[1] *= Math.PI / 180.0;

   // Get the altitude (sea level by default)
   obsvconst[2] = 0;

   // Get the time zone (UT by default)
   obsvconst[3] = 0;

   // Get the observer's geocentric position
   var tmp = Math.atan(0.99664719 * Math.tan(obsvconst[0]));
   obsvconst[4] = 0.99664719 * Math.sin(tmp) + (obsvconst[2] / 6378140.0) * Math.sin(obsvconst[0]);
   obsvconst[5] = Math.cos(tmp) + (obsvconst[2] / 6378140.0 * Math.cos(obsvconst[0]));
}

// This is used in getday()
// Pads digits
function padDigits(n, totalDigits) {
   n = n.toString();
   var pd = '';
   if (totalDigits > n.length) {
      for (i = 0; i < (totalDigits - n.length); i ++) {
         pd += '0';
      }
   }
   return pd + n.toString();
}

// Get the local date
function getdate(circumstances) {   
   /*
   var i;
   var searchString = document.location.search;
   
   // strip off the leading '?'
   searchString = searchString.substring(1);
   
   var nvPairs = searchString.split("&");
   
   for (i = 0; i < nvPairs.length; i++) {
      var nvPair = nvPairs[i].split("=");
      var name = nvPair[0];
      var value = nvPair[1];
      if (name == 'Ecl') {
         return value.substring(0, 4) + "/" + value.substring(4, 6) + "/" + value.substring(6, 8);
      }
   }
   */
   
   var jd = elements[0];
   
   // Calculate the local time.
   // Assumes JD > 0 (uses same algorithm as SKYCAL)
   var t = circumstances[1] + elements[1] - obsvconst[3] - (elements[4] - 0.05) / 3600.0+8;
   if (t < 0.0) {
      t += 24.0; // and jd-- below
   }
   else if (t >= 24.0) {
      t -= 24.0; // and jd++ below
   }
   var a;
   var y = 0;
   var m = 0;
   var day = 0.0;
   var jdm = jd + 0.5
   var z = Math.floor(jdm);
   var f = jdm - z;
   if (z < 2299161) {
      a = z;
   }
   else if (z >= 2299161) {
      var alpha = Math.floor((z - 1867216.25) / 36524.25);
      a = z + 1 + alpha - Math.floor(alpha / 4);
   }
   var b = a + 1524;
   var c = Math.floor((b - 122.1) / 365.25);
   var d = Math.floor(365.25 * c);
   var e = Math.floor((b - d) / 30.6001);
   day = b - d - Math.floor(30.6001 * e) + f;
   if (e < 14) {
      m = e - 1;
   }
   else if (e == 14 || e == 15) {
      m = e - 13;
   }
   if (m > 2) {
      y = c - 4716;
   }
   else if (m == 1 || m == 2) {
      y = c - 4715;
   }
   timediff = t - 24*(day-Math.floor(day)); // present time minus UT at GE
   if (timediff < -12) {
      day ++;
   }
   else if (timediff > 12) {
      day --;
   }
   
   return ''+padDigits(y, 4)+'/'+padDigits(m, 2)+'/'+padDigits(Math.floor(day), 2);
   
   // This method below IS NOT USED
   // Calculate the JD for as close to local noon as possible, and convert into a date
   // (may NOT WORK for dates
   // more than ONE CENTURY from the present day) (see http://aa.usno.navy.mil/js/JulianDate.js
   // for hints on second part of this function starting with "Otherwise" comment)
   // That part could be improved
   var ans;
   var jd = Math.floor(elements[0] - (t / 24.0) + 1538.0);
   var c = Math.floor((jd - 122.1) / 365.25);
   var d = Math.floor(365.25 * c);
   var e = Math.floor((jd - d) / 30.6001);
   d = jd - d - Math.floor(30.6001 * e);
   if (e < 13.5)
      e -= 1;
   else
      e -= 13;
   if (e > 2.5)
      ans = c - 4716 + "/";
   else
      ans = c - 4715 + "/";
   if (e < 10)
      ans += "0";
   ans += e + "/";
   if (d < 10)
      ans += "0";
   ans += d;

   return ans;
}

//
// Get the local time
function gettime(circumstances) {
   var ans = "";

   var t = circumstances[1] + elements[1] - obsvconst[3] - (elements[4] - 0.05) / 3600.0+8.0;
   if (t < 0.0)
      t += 24.0;
   else if (t >= 24.0)
      t -= 24.0;
   if (t < 10.0)
      ans += "0";
   ans += Math.floor(t) + ":";
   t = (t * 60.0) - 60.0 * Math.floor(t);
   if (t < 10.0)
      ans += "0";
   ans += Math.floor(t) + ":";
   t = (t * 60.0) - 60.0 * Math.floor(t);
   if (t < 10.0)
      ans += "0";
   ans += Math.floor(t);
   ans += ".";
   ans += Math.floor(10.0 * (t - Math.floor(t)));
   // Add an asterix if the altitude is less than zero
   if (circumstances[31] <= 0.0)
      ans += "*";

   return ans;
}

//
// Get the altitude
function getalt(circumstances) {
   var ans = "";
   var t = circumstances[31] * 180.0 / Math.PI;
   if (t < 0.0) {
      ans = "-";
      t = -t;
   }
   // t = Math.floor(t + 0.5);
   t = Math.round(t * 10) / 10.0;
   if (t < 100.0)
      ans += "0";
   if (t < 10.0)
      ans += "0";
   ans += t;

   return ans;
}

//
// Get the azimuth
function getazi(circumstances) {
   var ans = "";
   var t = circumstances[32] * 180.0 / Math.PI;
   if (t < 0.0)
      t += 360.0;
   else if (t >= 360.0)
      t -= 360.0;
   // t = Math.floor(t + 0.5);
   t = Math.round(t * 10) / 10.0;
   if (t < 100.0)
      ans += "0";
   if (t < 10.0)
      ans += "0";
   ans += t;

   return ans;
}

//
// Display the information about 1st contact
function displayc1() {
   var html = "<tr><td>";
   html += "初亏";
   html += " (C1)&nbsp;:&nbsp;</td><td>" + getdate(c1) + "</td><td>" + gettime(c1) + "</td><td>" + getalt(c1) + "&deg;</td><td>" + getazi(c1) + "&deg;</td></tr>";

   return html;
}

//
// Display the information about 2nd contact
function displayc2() {
   var html = "<tr><td>";
   html += "食既";
   html += " (C2)&nbsp;:&nbsp;</td><td>" + getdate(c2) + "</td><td>" + gettime(c2) + "</td><td>" + getalt(c2) + "&deg;</td><td>" + getazi(c2) + "&deg;</td></tr>";

   return html;
}

//
// Display the information about maximum eclipse
function displaymid() {
   var html = "<tr><td>";
   html += "食甚"; // "Mid eclipse";
   html += "&nbsp;:&nbsp;</td><td>" + getdate(mid) + "</td><td>" + gettime(mid) + "</td><td>" + getalt(mid) + "&deg;</td><td>" + getazi(mid) + "&deg;</td></tr>";

   return html;
}

//
// Display the information about 3rd contact
function displayc3() {
   var html = "<tr><td>";
   html += "生光";
   html += " (C3)&nbsp;:&nbsp;</td><td>" + getdate(c3) + "</td><td>" + gettime(c3) + "</td><td>" + getalt(c3) + "&deg;</td><td>" + getazi(c3) + "&deg;</td></tr>";

   return html;
}

//
// Display the information about 4th contact
function displayc4() {
   var html = "<tr><td>";
   html += "复圆";
   html += " (C4)&nbsp;:&nbsp;</td><td>" + getdate(c4) + "</td><td>" + gettime(c4) + "</td><td>" + getalt(c4) + "&deg;</td><td>" + getazi(c4) + "&deg;</td></tr>";

   return html;
}

//
// Get the duration in 00m00.0s format
//
function getduration() {
   var tmp = c3[1] - c2[1];
   if (tmp < 0.0)
      tmp += 24.0;
   else if (tmp >= 24.0)
      tmp -= 24.0;
   tmp = (tmp * 60.0) - 60.0 * Math.floor(tmp) + 0.05 / 60.0;
   var ans = Math.floor(tmp) + "m";
   tmp = (tmp * 60.0) - 60.0 * Math.floor(tmp);
   if (tmp < 10.0)
      ans += "0";
   ans += Math.floor(tmp);
   ans += ".";
   ans += Math.floor((tmp - Math.floor(tmp)) * 10.0).toString() + "s";

   return ans;
}

//
// Compute the local circumstances
function loc_circ(lat, lon) {
   var html = "";
   var htmlc1 = "";
   var htmlc2 = "";
   var htmlmid = "";
   var htmlc3 = "";
   var htmlc4 = "";
   var htmlEclipse = "";
   var partialEvent = false;
   var isEclipse = true;

   readdata(lat, lon);
   getall();
   htmlmid = displaymid();
   if (mid[35] > 0) {
      // There is an eclipse
      htmlc1 = displayc1();
      htmlc4 = displayc4();
      if (mid[35] > 1) {
         // Total/annular eclipse
         htmlc2 = displayc2();
         htmlc3 = displayc3();
         if ((c1[31] <= 0.0) && (c4[31] <= 0.0)) {
            // Sun below the horizon for the entire duration of the event
            isEclipse = false;
            htmlEclipse += "无日全食";
         }
         else {
            // Sun above the horizon for at least some of the event
            if ((c2[31] <= 0.0) && (c3[31] <= 0.0)) {
               // Sun below the horizon for just the total/annular event
               partialEvent = true;
               htmlEclipse += "偏食";
            }
            else {
               // Sun above the horizon for at least some of the total/annular event
               if ((c2[31] > 0.0) && (c3[31] > 0.0)) {
                  // Sun above the horizon for the entire annular/total event
                  if (mid[35] == 2) {
                     htmlEclipse += "日环食";
                     htmlEclipse += "<br />环食持续时间: ";
                     htmlc1 = htmlc1.replace(" of central eclipse", " of annular eclipse");
                     htmlc2 = htmlc2.replace(" of central eclipse", " of annular eclipse");
                     htmlc3 = htmlc3.replace(" of central eclipse", " of annular eclipse");
                     htmlc4 = htmlc4.replace(" of central eclipse", " of annular eclipse");
                  }
                  else {
                     htmlEclipse += "日全食";
                     htmlEclipse += "<br />全食持续时间: ";
                     htmlc1 = htmlc1.replace(" of central eclipse", " of total eclipse");
                     htmlc2 = htmlc2.replace(" of central eclipse", " of total eclipse");
                     htmlc3 = htmlc3.replace(" of central eclipse", " of total eclipse");
                     htmlc4 = htmlc4.replace(" of central eclipse", " of total eclipse");
                  }
                  htmlEclipse += getduration();
               }
               else {
                  // Sun below the horizon for at least some of the annular/total event
                  htmlEclipse += "???";
               }
            }
         }
      }
      else {
         // Partial eclipse
         if ((c1[31] <= 0.0) && (c4[31] <= 0.0)) {
            // Sun below the horizon
            isEclipse = false;
            htmlEclipse += "无日全食区域";
         }
         else {
            partialEvent = true;
            htmlEclipse += "偏食区域";
         }
      }
   }
   else {
      // No eclipse
      isEclipse = false;
      htmlEclipse += "无日全食区域";
   }

   if (isEclipse == true) {
      var maxmag = Math.round(mid[34] * 1000) / 1000.0;
      htmlEclipse += "<br />食分: " + maxmag;

      html = "";
      html += "<div id=\"mapmarker\" style=\"width: 390px;\">";
      html += "<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\" style=\"width: 100%;\">";
      html += "<thead><tr>";
      html += "<td><span title=\"Latitude\">纬度</span>: " + latitudeToString(lat.toFixed(5)) + "<br /><span title=\"Longitude\">经度</span>: " + longitudeToString(lon.toFixed(5)) + "</td>";
      html += "<td>" + htmlEclipse + "</td>";
      html += "</tr></thead>";
      html += "</table>";

      html += "<div style=\"margin: auto; width: 100%;\"><table border=\"0\" cellspacing=\"3\" style=\"width: 100%;\">";
      html += "<thead><tr style=\"text-align: center; color: #FFFFFF; background: #006699;\">";
      html += "<td>过程</td><td>日期</td><td>北京时间</td><td title=\"Altitude\">仰角</td><td title=\"Azimuth\">方位</td>";
      html += "</tr></thead><tbody>";
      html += htmlc1;
      if (partialEvent == false)
         html += htmlc2;
      html += htmlmid;
      if (partialEvent == false)
         html +=htmlc3;
      html += htmlc4;
      html += "</tbody></table></div>";
   }
   else {
      // No eclipse
      html = "<div id=\"mapmarker\" style=\"width: 150px;\">";
      html += "<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\" style=\"width: 100%;\">";
      html += "<thead><tr>";
      html += "<td><span title=\"Latitude\">经度</span>: " + latitudeToString(lat.toFixed(5)) + "<br /><span title=\"Longitude\">纬度</span>: " + longitudeToString(lon.toFixed(5)) + "</td>";
      html += "</tr></thead>";
      html += "</table>";
      html += "<br /><p style=\"font-weight: bold;\">" + htmlEclipse + "</p>";
   }
   html += "</div>";

   return html;
}
//-->//]]>