+ if(this.keyNav){\r
+ this.keyNav.disable();\r
+ delete this.keyNav;\r
+ }\r
+ /*\r
+ * A majority of the time, the plugin will be destroyed along with the grid,\r
+ * which means the mainBody won't be available. On the off chance that the plugin\r
+ * isn't destroyed with the grid, take care of removing the listener.\r
+ */\r