How do I use a jQuery plugin init options in another method?
===

Let's say this is the initialization of the plugin:

	        $(document).ready(function() {
		        $("#tree").fname({
					animSpeed: 0
				});
	        });

Now, I want to call another method and still keep that animSpeed value:

    $('#tree').fname('expand');

However, with my current code, the animSpeed value is lost and the default one is used instead in the expand method call (it works in init).  How could I change this?

Current Code:

    ;(function($){
    
    	$.fn.fname = function(method) {
    		
    		var defaults = {
    			animSpeed			: 'fast'
    		};
    		var option = {};
    		
    		var methods = {
    		
    			init: function(options) {
    			
    				option = $.extend(defaults, options);
    				
    				return this.each(function() {
    					code...
    				});
    			},
    			
    			expand: function() {
    				return this.each(function() {
    					$(this).children('li').slideDown(option.animSpeed);
    				});
    			}
    		};
    	};
    }(jQuery));