Question

I have the following JavaScript code –

    function addOnClickEventHandler()
     {
      var userNameElement = document.getElementById("currentUser");
      var userName = userNameElement.value; // send this value to "chatWindow"

      window.open("chatWindow.html", "Chat Window", "resizable=0,width=700,height=600");
     }  

Now, how do I send the value of userName to “chatWindow”? Also, how to access this value once it has been sent?

Answer 1

In the window being opened you can refer to the parent window as follows:

var oWinCaller = top.opener;

With this reference you can then get whatever you want from the opening window when the new window opens.