How to get only filename from the current page URL

Hi Friends

Can you please tell me how to get only filename form the current page URL?

For example: http://www.web.com/abc/xyz/index.php?a=1&b=2;

If you open the above url, then I need to display only index.php.


Thanks in advance.

 

var url = 'http://www.web.com/abc/xyz/index.php?a=1&b=2';
var lastSlash = url.lastIndexOf("/");
var firstQuestionMark = url.indexOf("?");
if(firstQuestionMark == -1)
{
firstQuestionMark = url.length;
}

var fileName = url.substring(lastSlash + 1, firstQuestionMark);
alert(fileName);