dojo.style(dojo.byId("map_zoom_slider"), "opacity", "0.5")
Try this:dojo.style(dojo.byId("map_zoom_slider"), "opacity", "0.5")
#map_zoom_slider { opacity:0.5; filter:Alpha(Opacity=50); }
You could try either adding a style for the element with the map_zoom_slider id:#map_zoom_slider { opacity:0.5; filter:Alpha(Opacity=50); }
Or...add the dojo.style(dojo.byId("map_zoom_slider"), "opacity", "0.5"); code inside of the "onLoad" callback for the map object (say around line 59 in the original sample).
#mapDiv_zoom_slider { opacity:0.5; filter:Alpha(Opacity=50); }
dojo.style(dojo.byId("mapDiv_zoom_slider"), "opacity", "0.5");