Behaviour.register({ 'input#Form_EditForm_Title': { /** * Get the URL segment to suggest a new field */ onchange: function() { if( this.value.length == 0 ) return; var urlSegmentField = $('Form_EditForm_URLSegment'); var newSuggestion = urlSegmentField.suggestNewValue( this.value.toLowerCase() ); var isNew = $('Form_EditForm_ID').value.indexOf("new") == 0; if( newSuggestion == urlSegmentField.value || isNew || confirm( 'Would you like me to change the URL to:\n\n' + newSuggestion + '/\n\nClick Ok to change the URL, click Cancel to leave it as:\n\n' + urlSegmentField.value ) ) urlSegmentField.value = newSuggestion; } } });