function addMarkers()
{
mySelect = document.getElementById('selection');
Independence = [];Elk_Creek = [];Galax = [];Troutdale = [];Fries = [];Whitetop = [];mySelect.options[mySelect.options.length] = new Option("Elk Creek schools",'all=Elk_Creek');
mySelect.options[mySelect.options.length] = new Option("Fries schools",'all=Fries');
mySelect.options[mySelect.options.length] = new Option("Galax schools",'all=Galax');
mySelect.options[mySelect.options.length] = new Option("Independence schools",'all=Independence');
mySelect.options[mySelect.options.length] = new Option("Troutdale schools",'all=Troutdale');
mySelect.options[mySelect.options.length] = new Option("Whitetop schools",'all=Whitetop');
mySelect.options[mySelect.options.length] = new Option("---------------------------",'');
Independence[Independence.length] = createMarker(new GPoint(-81.15085400,36.62241300),"",iconRd);
mySelect.options[mySelect.options.length] = new Option("Bridle Creek Elementary School",'Independence=' + Independence.length);
Elk_Creek[Elk_Creek.length] = createMarker(new GPoint(-81.17781067,36.72100067),"",iconRd);
mySelect.options[mySelect.options.length] = new Option("Elk Creek Elementary School",'Elk_Creek=' + Elk_Creek.length);
Galax[Galax.length] = createMarker(new GPoint(-80.91184998,36.58524323),"",iconRd);
mySelect.options[mySelect.options.length] = new Option("Fairview Elementary School",'Galax=' + Galax.length);
Troutdale[Troutdale.length] = createMarker(new GPoint(-81.34559631,36.69767761),"",iconRd);
mySelect.options[mySelect.options.length] = new Option("Flatridge Elementary School",'Troutdale=' + Troutdale.length);
Fries[Fries.length] = createMarker(new GPoint(-81.00959778,36.72069931),"",iconBl);
mySelect.options[mySelect.options.length] = new Option("Fries Middle School",'Fries=' + Fries.length);
Independence[Independence.length] = createMarker(new GPoint(-81.15869904,36.62260056),"",iconGr);
mySelect.options[mySelect.options.length] = new Option("Grayson Co High Career & Tech Ed",'Independence=' + Independence.length);
Independence[Independence.length] = createMarker(new GPoint(-81.15869904,36.62260056),"",iconGr);
mySelect.options[mySelect.options.length] = new Option("Grayson County High School",'Independence=' + Independence.length);
Independence[Independence.length] = createMarker(new GPoint(-81.15869904,36.62260056),"",iconRd);
mySelect.options[mySelect.options.length] = new Option("Independence Elementary School",'Independence=' + Independence.length);
Independence[Independence.length] = createMarker(new GPoint(-81.15869904,36.62260056),"",iconBl);
mySelect.options[mySelect.options.length] = new Option("Independence Middle School",'Independence=' + Independence.length);
Whitetop[Whitetop.length] = createMarker(new GPoint(-81.53457642,36.59676743),"",iconGr);
mySelect.options[mySelect.options.length] = new Option("Mt. Rogers Comb.",'Whitetop=' + Whitetop.length);
Fries[Fries.length] = createMarker(new GPoint(-81.03892517,36.71101761),"",iconRd);
mySelect.options[mySelect.options.length] = new Option("Providence Elementary School",'Fries=' + Fries.length);
} // End addStateMarkers JavaScript Function
// Takes an array of markers and centers/zooms map based on marker range
function centerByArray(myArray, recenter, newMaxMin)
{
if (newMaxMin == true)
reMaxMin(myArray);
for (var i = 0; i < myArray.length; i++)
{
var markLng = myArray[i].getPoint().x;
var markLat = myArray[i].getPoint().y;
if (markLat > maxLat) maxLat = markLat;
if (markLng > maxLng) maxLng = markLng;
if (markLat < minLat) minLat = markLat;
if (markLng < minLng) minLng = markLng;
}
if (recenter)
reCenterMap();
}
// Reinit max/mins
function reMaxMin(myArray)
{
maxLng = myArray[0].getPoint().x;
maxLat = myArray[0].getPoint().y;
minLng = myArray[0].getPoint().x;
minLat = myArray[0].getPoint().y;
}
// Recenter map based on global max/mins
function reCenterMap()
{
var bounds = new GLatLngBounds();
bounds.extend(new GLatLng(minLat, minLng));
bounds.extend(new GLatLng(maxLat, maxLng));
var center_lat = (bounds.getNorthEast().lat() + bounds.getSouthWest().lat()) / 2.0;
var center_lng = (bounds.getNorthEast().lng() + bounds.getSouthWest().lng()) / 2.0;
var center = new GLatLng(center_lat, center_lng);
var zoom = map.getBoundsZoomLevel(bounds);
map.setCenter(center,zoom);
//map.setCenter(center,10);
/*
var center = new GPoint( (maxLng + minLng)/2, (maxLat+minLat)/2 );
var delta = new GSize(maxLng - minLng, maxLat - minLat);
var minZoom = map.spec.getLowestZoomLevel(center, delta, map.viewSize);
if (minZoom < 4) minZoom = 4; // Lowest possible zoom is 4
map.centerAndZoom(center, minZoom);
*/
}
// Fires when drop down list of schools changes
function selectChange(selection)
{
var myVal = selection.options[selection.selectedIndex].value;
map.closeInfoWindow();
// Add entire array based on variable type
if (myVal.indexOf('all') != -1 && myVal != 'all')
{
var temp = myVal.split('=');
var showArray = temp[1];
// If Array is > X amount of markers, then open in a new page
if (eval(showArray).length > 20)
// New window depends on whether or not we're on the search page
if (location.href.indexOf('nearby_schools.php') == -1)
window.open(location.href + '/map/' + showArray);
else
window.open('/search////' + showArray);
map.removeOverlays(Elk_Creek);
map.removeOverlays(Fries);
map.removeOverlays(Galax);
map.removeOverlays(Independence);
map.removeOverlays(Troutdale);
map.removeOverlays(Whitetop);
map.addOverlays(eval(showArray));
centerByArray(eval(showArray), true, true); // Center and zoom on set of markers
}
// Add individual markers
if (myVal.indexOf('all') == -1 && myVal != 'all' && myVal.length)
{
var temp = myVal.split('=');
var myArray = temp[0];
var myIndex = parseInt(temp[1]) - 1;
document.getElementById('map').width = "750";
map.removeOverlay(eval(myArray)[myIndex]);
map.addOverlay(eval(myArray)[myIndex]);
GEvent.trigger(eval(myArray)[myIndex],'click');
}
// Show all markers
if (myVal == 'all')
{
cntMarker = 0;
reMaxMin(Independence);map.removeOverlays(Elk_Creek);
map.removeOverlays(Fries);
map.removeOverlays(Galax);
map.removeOverlays(Independence);
map.removeOverlays(Troutdale);
map.removeOverlays(Whitetop);
map.addOverlays(Elk_Creek);
centerByArray(Elk_Creek, false, false);
cntMarker += Elk_Creek.length;
map.addOverlays(Fries);
centerByArray(Fries, false, false);
cntMarker += Fries.length;
map.addOverlays(Galax);
centerByArray(Galax, false, false);
cntMarker += Galax.length;
map.addOverlays(Independence);
centerByArray(Independence, false, false);
cntMarker += Independence.length;
map.addOverlays(Troutdale);
centerByArray(Troutdale, false, false);
cntMarker += Troutdale.length;
map.addOverlays(Whitetop);
centerByArray(Whitetop, false, false);
cntMarker += Whitetop.length;
centerByArray(Independence,true, false);
if (cntMarker > 20)
// New window depends on whether or not we're on the search page
if (location.href.indexOf('schools-by-distance') == -1)
window.open(location.href + '/map/all');
else
window.open('/search////all');
}
}