How to access a jQuery object instance?

How to access a jQuery object instance?

Hello there,

I would like to know how i can access properties of a jQuery object
instance.
I have the following javascript

(function($){
   var opts;
   var sValue;

   $.fn.jobject = function(options){
      opts = $.extend({}, $.fn.jobject.defaults, options);

      $.fn.jobject.initialize();
      return this.each(function(){
         $(this).mouseover(function(){
            alert(sValue);
            return false;
         });         
      });
   };
   
   $.fn.jobject.initialize = function(){
      //
   };
})(jQuery);


$(document).ready(function(){
   $(".jobject").jobject();
});



I would like to access the instance from my HTML file and pass value's

<script type="text/javascript">
jObject.sValue = "a value ";
</script>

How can I do this?

The way jQuery is written confuses me a little (just started using it)

Thanks in advance [/code]