Calling the Asp.net Code Behind method into Javascript

Blocks of code should be set as style "Formatted" like this:

<script language="javascript" type="text/javascript">
        function call_me()
        { 
        
           var Temp= confirm("Hit from ClientSide");
     
             if(Temp)
             {
             alert("True");     
              __doPostBack('btnHdn','onserverclick'); 
             }
             else
             {
             alert("false");
             } 
                
        }
    </script>

From Button event

<input type="button" runat ="server"
onclick="call_me();" id="btnClick" value="PRESS" /> 

Calling this method into java script function.

public partial class Test : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
    protected void Call_Server(Object sender, EventArgs e)
    {
        Response.Write("Calling Server Side Event");
    }

}