What's the difference between a 'var' declared variable and 'this' created property in Javascript?
<p>first using var   </p>

<pre><code> function testCode(some) 
    {
         var something = some;
    }
</code></pre>

<p>the second using this</p>

<pre><code>function testCode2(some) 
{
     this.something = some ;
}
</code></pre>
