taking javascript into an external file and calling a function from it
<p>I have made a working webpage but when i try to take the jscript into an external file it no longer is called. i have put in the code in my header to include the file name but still unable to call it. Here is my jscript please help me out
    by the way just a quick edit I got the isMobile function from here <a href="http://www.abeautifulsite.net/blog/2011/11/detecting-mobile-devices-with-javascript/" rel="nofollow">http://www.abeautifulsite.net/blog/2011/11/detecting-mobile-devices-with-javascript/</a></p>

<pre><code>&lt;script&gt;        
    var isMobile = {
      Android: function() {
        return navigator.userAgent.match(/Android/i);
      },
      BlackBerry: function() {
        return navigator.userAgent.match(/BlackBerry/i);
      },
      iOS: function() {
        return navigator.userAgent.match(/iPhone|iPad|iPod/i);
      },
      Opera: function() {
        return navigator.userAgent.match(/Opera Mini/i);
      },
      Windows: function() {
        return navigator.userAgent.match(/IEMobile/i);
      },
      any: function() {
        return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows());
      }
    };
    function load()
    {
      var w=((screen.availWidth)/50)*49;
      var h=(w/4)*3;
      if( isMobile.any() ){
        var t=w;
        w=h;
        h=t;

      }
      var a=document.getElementById('banner');
      a.style.width=w+'px';
      a.style.height=(h/4)+'px';
      var b=document.getElementById('main');
      b.style.width=w+'px';
      b.style.height=Math.round((h/7)*4)+'px';
    }
  &lt;/script&gt;
</code></pre>
