wmst.html
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style type="text/css">
#map {
width: 512px;
height: 400px;
border: 1px solid black;
}
</style>
<script src="../lib/OpenLayers.js"></script>
<script type="text/javascript">
<!--
var map,ia_wms;
function init(){
map = new OpenLayers.Map('map');
var ol_wms = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0?", {layers: 'basic'} );
var jpl_wms = new OpenLayers.Layer.WMS( "NASA Global Mosaic",
"http://wms.jpl.nasa.gov/wms.cgi",
{layers: "modis,global_mosaic"});
ia_wms = new OpenLayers.Layer.WMS("Nexrad","http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi?",{layers:"nexrad-n0r-wmst",transparent:true,format:'image/png',time:OpenLayers.Util.getElement('time').value});
jpl_wms.setVisibility(false);
map.addLayers([ol_wms, jpl_wms, ia_wms]);
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.zoomToMaxExtent();
}
// -->
</script>
</head>
<body onload="init()">
<h1>OpenLayers Example</h1>
<p>WMS-T example: update the times, and the radar image will change. Uses Layer.changeParams. Thanks to David Bitner for the inspiration, the original code, and the kick in the butt!</p>
<input type='text' id='time' value="2005-08-29T13:00:00Z" onChange='ia_wms.mergeNewParams({"time":this.value});' >
<div id="map"></div>
</body>
</html>