//<![CDATA[
var map;

topleftlat=30.0000;
topleftlng=-140.0000;

var pointarray = new Array();

var n = "N";
var s = "S";
var e = "E";
var w = "W";

var ns = "NS";
var ew = "EW";

function format(expr, decplaces)
{
  var str = "" + Math.round(eval(expr) * Math.pow(10, decplaces));
  while (str.length <= decplaces)
  {
    str = "0" + str;
  }
  var decpoint = str.length - decplaces;
  return str.substring(0, decpoint) + "." + str.substring(decpoint, str.length);
}

function decimalToSexagesimal(v, ns_ew)
{
  var s = "";
  var absVal = Math.abs(v);
  var intValue = Math.floor(absVal);
  var dec = absVal - intValue;
  i = intValue;
  dec *= 60;
  s = String(i) + "&deg;" + format(dec, 2) + "'";
  if (v < 0)
  {
    switch(ns_ew)
    {
      case ns:
        s = s + "S";
        break;
      case ew:
        s = s + "W";
        break;
    }
  }
  else
  {
    switch(ns_ew)
    {
      case ns:
        s = s + "N";
        break;
      case ew:
        s = s + "E";
        break;
    }
  }
  return s;
}

function isCloseTo(latlng)
{
  var ptId = -1;
  for (var j=0; j<pointarray.length; j++)
  {
    var pt = new GLatLng(pointarray[j].latitude, pointarray[j].longitude);
    var dist = pt.distanceFrom(latlng);
    if (dist < (1 * 1852)) // 1852 = 1 mile
    {
      ptId = j;
      break;
    }
  }  
  return ptId;
}

//]]>