sample of autocomplete jquery ui

sample.js

	 jQuery(".auto_search_complete").live("click", function() {
	 jQuery(this).autocomplete({
	    minLength: 3,

	    source: function (request, response) {
		jQuery.ajax({
		    url: "/autocomplete.json",
		    data: {
			term: request.term
		    },
		    success: function (data) {
			if (data.length == 0) {
		jQuery('span.guest_investor_email').show();
                jQuery('span.investor_field_delete_button').show();
// what i thought would work but doesn't, as it does in other functions is:
                // jQuery(this).siblings('span.investor_field_delete_button').show();
			}
			response(data);
		    }
		});
	    },