How to remove title(instance says) from the confirm box

[Tabassum Sulta1]

How can we remove the highlighted message from the confirm box?

I have used confirm function for the pop up but want remove the instance says(highlighted) message here attached in screenshot.

function Test(){

var ans = confirm("This is the confirmation msg click ok");
if (ans == false) {

return false();

        }

}

[Willem]

If you remove the "setTitle" it removes the title:

[Willem]

Hi Tabassum,

Hope you are doing well.

Is your question resolved? Or do we need to follow-up on this?

Please mark this answer as correct if it solves your question. This will help others who are looking for a similar solution. Also marking this answer as correct takes the post of the unsolved list.
Thanks.

Kind regards,

Willem

[pavana1]

Hi Willem,

Onchange script for my check box

var dialog = new GlideModal('glide_modal_confirm', true, 300);
dialog.setTitle(new GwtMessage().getMessage('Confirmation'));
dialog.setPreference('body', new GwtMessage().format("Your message"));
dialog.setPreference('focusTrap', true);
dialog.setPreference('onPromptComplete', doComplete);
dialog.setPreference('onPromptCancel', doCancel);
dialog.render();

function doComplete() {
g_scratchpad._action_confirmed = true;
callback(true);
}

function doCancel() {

callback(false);

}

I have tried above code for my catalog and from portal getting error like "There is a JavaScript error in your browser console"  in that screen  Control+shift+J 

(g_env) [SCRIPT:EXEC] Error while running Client Script "Cox_OwnersApproval request": ReferenceError: GlideModal is not defined

So how to solve this problem.

Please help me out .

Thanks & Regards,

Pavana