JQuery Post caused permission denied warning in IE 6 and IE 7
<p>I am using firefox 3 and IE 6, 7 to test if a simple php web page using JQuery Post to
pass some data to and from another server web page.</p>

<pre><code>$(document).ready(function(){ 

   $("#data\\[User\\]\\[name\\]").click(function(){ 

      var usr=$("#data\\[User\\]\\[name\\]").val();

   if(usr.length &gt;= 4){     

      $("#username").append('&lt;span id="loaderimg" name="loaderimg"&gt;&lt;img align="absmiddle" src="loader.gif"/&gt; Checking data availability,&amp;nbsp;please wait.&lt;/span&gt;');

      var url =  "http://mysite.com/site1/toavail/"+usr;    
      $.post(
      url,    
      function(data) {alert(data);});
}

   });
});
//--&gt;
&lt;/script&gt;


&lt;table border=0 width="100%"&gt;
&lt;tr&gt;
    &lt;td&gt;Username&lt;/td&gt;
    &lt;td&gt;       
        &lt;div id="username"&gt;
    &lt;input type="text" name="data[User][name]" id="data[User][name]"&gt;
    &lt;/div&gt;       
        &lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
</code></pre>

<p>In Firefox 3, the alert box showed empty message.
In IE 6 and IE 7, I got an error message saying "Permssion denied"</p>
