<style>
#map-ui {
position: absolute;
top: 10px;
right: 10px;
z-index: 100;
}
#map-ui ul {
list-style: none;
margin: 0;
padding: 0;
}
#map-ui a {
font-size: 13px;
background: #FFF;
color: #3C4E5A;
display: block;
margin: 0;
padding: 0;
border: 1px solid #BBB;
border-bottom-width: 0;
min-width: 138px;
padding: 10px;
text-decoration: none;
}
#map-ui a:hover {
background: #ECF5FA;
}
#map-ui li:last-child a {
border-bottom-width: 1px;
-webkit-border-radius: 0 0 3px 3px;
border-radius: 0 0 3px 3px;
}
#map-ui li:first-child a {
-webkit-border-radius: 3px 3px 0 0;
border-radius: 3px 3px 0 0;
}
#map-ui a.active {
background: #3887BE;
border-color: #3887BE;
color: #FFF;
}
</style>
<div id='map-ui'>
<ul>
<li><a href='#' id='filter-food'>show only food events</a></li>
<li><a href='#' class='active' id='filter-all'>show all events</a></li>
</ul>
</div>
<div id='map'></div>
<script>
var map = L.mapbox.map('map', 'examples.map-zr0njcqy');
var food = document.getElementById('filter-food');
var all = document.getElementById('filter-all');
food.onclick = function(e) {
all.className = '';
this.className = 'active';
// The setFilter function takes a GeoJSON feature object
// and returns true to show it or false to hide it.
map.markerLayer.setFilter(function(f) {
return f.properties['marker-symbol'] === 'fast-food';
});
return false;
};
all.onclick = function() {
food.className = '';
this.className = 'active';
map.markerLayer.setFilter(function(f) {
// Returning true for all markers shows everything.
return true;
});
return false;
};
</script>