"),this._addClass(this.helper,"ui-selectable-helper")},_destroy:function(){this.selectees.removeData("selectable-item"),this._mouseDestroy()},_mouseStart:function(s){var l=this,e=this.options;this.opos=[s.pageX,s.pageY],this.elementPos=u(this.element[0]).offset(),this.options.disabled||(this.selectees=u(e.filter,this.element[0]),this._trigger("start",s),u(e.appendTo).append(this.helper),this.helper.css({left:s.pageX,top:s.pageY,width:0,height:0}),e.autoRefresh&&this.refresh(),this.selectees.filter(".ui-selected").each(function(){var e=u.data(this,"selectable-item");e.startselected=!0,s.metaKey||s.ctrlKey||(l._removeClass(e.$element,"ui-selected"),e.selected=!1,l._addClass(e.$element,"ui-unselecting"),e.unselecting=!0,l._trigger("unselecting",s,{unselecting:e.element}))}),u(s.target).parents().addBack().each(function(){var e,t=u.data(this,"selectable-item");if(t)return e=!s.metaKey&&!s.ctrlKey||!t.$element.hasClass("ui-selected"),l._removeClass(t.$element,e?"ui-unselecting":"ui-selected")._addClass(t.$element,e?"ui-selecting":"ui-unselecting"),t.unselecting=!e,t.selecting=e,(t.selected=e)?l._trigger("selecting",s,{selecting:t.element}):l._trigger("unselecting",s,{unselecting:t.element}),!1}))},_mouseDrag:function(l){var e,i,n,c,a,r,o;if(this.dragged=!0,!this.options.disabled)return n=(i=this).options,c=this.opos[0],a=this.opos[1],(r=l.pageX)