JS(Prevent page from multiple clicks ASP.NET)

//Step:01 Write This into Header

<script type="text/javascript">

      function ClientSideClick(myButton) {

      // Client side validation

      if (typeof (Page_ClientValidate) == 'function') {

          if (Page_ClientValidate() == false)

          { return false; }

      }

      //make sure the button is not of type "submit" but "button"

      if (myButton.getAttribute('type') == 'button') {

              // diable the button

              myButton.disabled = true;

              myButton.className = "btn-inactive";

              myButton.value = "processing...";

          }

          return true;

      }

</script>

//Step:02 Write this on the Page_Load Event

Page.GetPostBackEventReference(Control_Here);