How to edit a JavaScript alert box title?

Question

I\'m generating a JavaScript alert with following code in C# .NET page:

Response.Write(\"

        

Answer 1

Override the javascript window.alert() function.

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