Помогите с jquery

(function($){
$.fn.jTruncate = function(options) {

var defaults = {
length: 300,
minTrail: 20,
moreText: "Читать далее",
lessText: "Свернуть",
ellipsisText: "...",
moreAni: "",
lessAni: ""
};

var options = $.extend(defaults, options);

return this.each(function() {
obj = $(this);
var body = obj.html();

if(body.length > options.length + options.minTrail) {
var splitLocation = body.indexOf(' ', options.length);
if(splitLocation != -1) {
// truncate tip
var splitLocation = body.indexOf(' ', options.length);
var str1 = body.substring(0, splitLocation);
var str2 = body.substring(splitLocation, body.length - 1);
obj.html(str1 + '<span class="truncate_ellipsis">' + options.ellipsisText +
'</span>' + '<span class="truncate_more">' + str2 + '</span>');
obj.find('.truncate_more').css("display", "none");

// insert more link
obj.append(
'<div class="clearboth">' +
'<a href="#" class="truncate_more_link">' + options.moreText + '</a>' +
'</div>'
);

// set onclick event for more/less link
var moreLink = $('.truncate_more_link', obj);
var moreContent = $('.truncate_more', obj);
var ellipsis = $('.truncate_ellipsis', obj);
moreLink.click(function() {
if(moreLink.text() == options.moreText) {
moreContent.show(options.moreAni);
moreLink.text(options.lessText);
ellipsis.css("display", "none");
} else {
moreContent.hide(options.lessAni);
moreLink.text(options.moreText);
ellipsis.css("display", "inline");
}
return false;
});
}
} // end if

});
};
})(jQuery);