How to get the dynamic value of a filter input into an XSL variable?

Is it possible to get the value of the dynamic filter input into a variable in XSL?

I need to use this variable to filter the values shown in a DVWP.

Adding a bit more information on what exactly I am trying to do?

1. I need to have a drop down in the page. The value of the drop down should be a开发者_如何学运维 unique value from a field of a SharePoint list defined in the same site.

2. now when I select a particular value, this value should be available in a XSL variable.

Is it possible to do with the query string method proposed by Ashutosh Singh?

Yes, you can get it. You can use a query string or a value of some control on your page for the same.

Filtering DVWP using a URL parameter.