This example shows you how easily jQuery + jMaps makes adding a traffic information layer.
Google traffic allows you to add a layer of traffic information to your maps.
jQuery(document).ready(function(){
jQuery('#map1').jmap('init', {'mapType':G_HYBRID_MAP,'mapCenter':[40.714996739064084,-74.00665283203125]});
jQuery('.add-traffic').click(function(){
jQuery('#map1').jmap('AddTrafficInfo', null, function(traffic, options) {
jQuery('.remove-traffic').click(function(){
jQuery('#map1').jmap('RemoveTrafficInfo', traffic);
});
});
});
});