jAlert('This is a custom alert box', 'Alert Dialog');

jConfirm('Can you confirm this?', 'Confirmation Dialog', function(r) {
    jAlert('Confirmed: ' + r, 'Confirmation Results');
});

jPrompt('Type something:', 'Prefilled value', 'Prompt Dialog', function(r) {
    if( r ) alert('You entered ' + r);
});

jAlert('You can use HTML, such as bold, italics, and underline!');

By changing the value of the $.alerts.dialogClass property (and creating your own CSS class), you can changes the style of your dialogs:

View the plugin source for additional properties that can be modifed at runtime.