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How to edit a JavaScript alert box title?

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Can we customize alert box in JavaScript?

The standard alert box in JavaScript does not provide the option to apply CSS. To style your alert box, you need to create a custom one first. The custom alert box will be created using jQuery and styles will be applied to CSS.

How do I change message alerts?

To edit an Item Alert Message start by selecting Items on the left side of the Navigation Menu, and then choose Item Alert Messages under the listings. On the Item Alert Messages page select the item you want to edit and click the Edit Button represented by a Pencil Icon on the left side of the Alert Message name.


No, you can't.

It's a security/anti-phishing feature.


No, it is not possible. You can use a custom javascript alert box.

Found a nice one using jQuery

jQuery Alert Dialogs (Alert, Confirm, & Prompt Replacements)


You can do this in IE:

<script language="VBScript">
Sub myAlert(title, content)
      MsgBox content, 0, title
End Sub
</script>

<script type="text/javascript">
myAlert("My custom title", "Some content");
</script>

(Although, I really wish you couldn't.)


I Found this Sweetalert for customize header box javascript.

For example

swal({
  title: "Are you sure?",
  text: "You will not be able to recover this imaginary file!",
  type: "warning",
  showCancelButton: true,
  confirmButtonColor: "#DD6B55",
  confirmButtonText: "Yes, delete it!",
  closeOnConfirm: false
},
function(){
  swal("Deleted!", "Your imaginary file has been deleted.", "success");
});

Override the javascript window.alert() function.

window.alert = function(title, message){
    var myElementToShow = document.getElementById("someElementId");
    myElementToShow.innerHTML = title + "</br>" + message; 
}

With this you can create your own alert() function. Create a new 'cool' looking dialog (from some div elements).

Tested working in chrome and webkit, not sure of others.