I mentioned i read the suggested link ...and Could not able to understand the suggestion ..\"Use Greasemonkey to modify Pages and start writing some javas
Browser security prevents the code from running. You are better off running a local server such as IIS or Apache.
You can change your browser to run local content by changing a browser config
Firefox
I finally seems to Get it working . Here is working Script
$("button").click(function(){
$.ajax({url:"http://localhost/demo_test.txt",success:function(result){
$("#div1").html(result);
}});
});
Workaround : put the html file and text file on local server (IIS) New Site .