使用按钮单击时使用jquery从gridview中的下拉列表中获取所选项目

i have gridview in which i have added dropdown list and button .On Rowdatabound event i am filling dropdown list On Button click i want to check selected item in drop down list at clientside at the same row how i can do this.i was able to add script for confirm message on button like this:i have gridview in which i have added dropdown