The confirm method of the window object is used to render a dialog box that gives the user the option to confirm an action, by supplying them with an "OK" and "Cancel" button that correspond to a message paramter.
Parameters
message
The message the describes the action that the user is to confirm
Javascript CODE EXAMPLE
<script type="text/javascript">
function runCheck() {
var c = confirm("Are you sure you want to do that?");
var status = document.getElementById("status");
if (c == true){
status.innerHTML = "You confirmed, thanks";
} else {
status.innerHTML = "You cancelled the action";
}
}
</script>
<input type="button" value="Perform Action" onclick="runCheck()">
<h2 id="status"></h2>