Once you've added a chatbox or popup to your site, and you have some conversations going, you might want your users to be able to switch between them.

In a popup

Let's say you have a few buttons on a page, each corresponding to a conversation topic:

<button onclick="buttonClicked(this.innerHTML)">Conversation A</button>
<button onclick="buttonClicked(this.innerHTML)">Conversation B</button>
<button onclick="buttonClicked(this.innerHTML)">Conversation C</button>

Then we can define buttonClicked(conversationId) as follows

let popup;

function buttonClicked(conversationId) {
    // assume `session` has been set elsewhere
    const conversation = session.getOrCreateConversation(conversationId);

    if (popup) {
        popup.show(); //in case popup is hidden
        popup.select(conversation) //select the conversation clicked on
    } 
    else {
        //if there is no existing popup, create one
        popup = session.createPopup(conversation);
        popup.mount({show: true});
    }
}
function buttonClicked(conversationId) {
    // assume `window.talkSession` has been set elsewhere
    var conversation = window.talkSession.getOrCreateConversation(conversationId);

    if (window.popup) {
        window.popup.show(); //in case popup is hidden
        window.popup.select(conversation) //select the conversation clicked on
    } 
    else {
        //if there is no existing popup, create one
        window.popup = window.talkSession.createPopup(conversation);
        window.popup.mount({show: true});
    }
}

When the user clicks on a button, the text within the button is used as a conversation id. The popup then makes this the active conversation. select takes either a Conversation object or conversation id as its parameter - see select.

In a chatbox

Assuming someChatbox exists, we can simply do:

function buttonClicked(conversationId) {
    const conversation = window.talkSession.getOrCreateConversation(conversationId);
    someChatbox.select(conversation);
}
function buttonClicked(conversationId) {
    var conversation = window.talkSession.getOrCreateConversation(conversationId);
    someChatbox.select(conversation);
}