diff --git a/worldmap.html b/worldmap.html
index 27c73fc..6aaa353 100644
--- a/worldmap.html
+++ b/worldmap.html
@@ -102,7 +102,7 @@
     <label for="node-input-name"><i class="fa fa-file"></i> Name</label>
     <input type="text" id="node-input-name" placeholder="name">
 </div>
-<div class="form-tips">Set <i>Cluster if</i> to 0 to disable clustering of points.<br/>If <i>Path</i> is left empty,
+<div class="form-tips">Set <i>Cluster when</i> to 0 to disable clustering of points.<br/>If <i>Path</i> is left empty,
 then by default <code>⌘⇧m</code> - <code>ctrl-shift-m</code> will load the map in a new tab.</div>
 </script>
 
diff --git a/worldmap/index.html b/worldmap/index.html
index af4bdc8..175ab21 100644
--- a/worldmap/index.html
+++ b/worldmap/index.html
@@ -81,7 +81,7 @@
 <div id="menu"><table>
     <tr><td><input type='text' name='search' id='search' size='20' style="width:150px;"/>&nbsp;<span onclick='doSearch();'><i class="fa fa-search fa-lg"></i></span></td></tr>
     <tr><td style="cursor:default"><i class="fa fa-spinner fa-lg fa-fw"></i> Set Max Age <input type='text' name='maxage' id='maxage' value="600" size="5" onchange='setMaxAge();'/>s</td></tr>
-    <tr><td style="cursor:default"><i class="fa fa-search-plus fa-lg fa-fw"></i> Cluster at zoom <<input type='text' name='setclus' id='setclus' size="2" onchange='setCluster();'/></td></tr>
+    <tr><td style="cursor:default"><i class="fa fa-search-plus fa-lg fa-fw"></i> Cluster at zoom <<input type='text' name='setclus' id='setclus' size="2" onchange='setCluster(this.value);'/></td></tr>
     <tr><td style="cursor:default"><input type='checkbox' id='panit' onclick='doPanit(this.checked);'/> Auto Pan Map</td></tr>
     <tr><td style="cursor:default"><input type='checkbox' id='lockit' onclick='doLock(this.checked);'/> Lock Map</td></tr>
     <tr><td style="cursor:default"><input type='checkbox' id='heatall' onclick='doHeatAll(this.checked);'/> Heatmap all layers</td></tr>