this.el.setVisibilityMode(Roo.Element.DISPLAY);
this.titleEl = this.el.select('.roo-alert-title',true).first();
this.iconEl = this.el.select('.roo-alert-icon',true).first();
this.el.setVisibilityMode(Roo.Element.DISPLAY);
this.titleEl = this.el.select('.roo-alert-title',true).first();
this.iconEl = this.el.select('.roo-alert-icon',true).first();