Can't load map for the sample code

Discussion created by jisiki on May 17, 2014
Latest reply on May 18, 2014 by btfou

I am a starter, 
When I download the samplecode from http://developers.arcgis.com/javascript/sandbox/sandbox.html?sample=map_webmap

Which is a simple code for loading the arcgis map with     <div id="mapDiv"></div>
    <div id="legendDiv"></div>

But , when I download the code and run it on my browser,  the map can't be loaded, there is blank in my chrome and IE,