function(newMessage) {
        var cls = Ext.baseCSSPrefix + 'has-message';

        if (newMessage) {
            this.addCls(cls);
        } else {
            this.removeCls(cls);
        }

        this.messageElement.setHtml(newMessage);
    }
function(newMessage) {
        var cls = Ext.baseCSSPrefix + 'has-message';

        if (newMessage) {
            this.addCls(cls);
        } else {
            this.removeCls(cls);
        }

        this.messageElement.setHtml(newMessage);
    }
function ( newMessage ) { var cls = Ext . baseCSSPrefix + 'has-message' ; if ( newMessage ) { this . addCls ( cls ) ; } else { this . removeCls ( cls ) ; } this . messageElement . setHtml ( newMessage ) ; }
Updates the message element with the new value of the {@link #message} configuration
@private
Updates the message element with the new value of the {