title: Get the closest tr value in javascript function
body: <p>I am having table which contain some data. This table is generating using a component. 
  All td's has the same class name. Each row begins with a check-box with a specific value to that row. When click on a td on that row I want to get check-box value. When I click on a label javascript function is trggers. Cannot use Jquery click function.</p>