// SeViR Simple Horizontal Accordion @2007// http://letmehaveblog.blogspot.comjQuery.fn.extend({  haccordion: function(params){    var jQ = jQuery;    var params = jQ.extend({      speed: 500,      headerclass: "header",      contentclass: "content",      contentwidth: 250    },params);    return this.each(function(){      jQ("."+params.headerclass,this).click(function(){        var p = jQ(this).parent()[0];        if (p.opened != "undefined"){          jQ(p.opened).next("div."+params.contentclass).animate({            width: "0px"          },params.speed);        }        p.opened = this;        jQ(this).next("div."+params.contentclass).animate({          width: params.contentwidth + "px"        }, params.speed);      });    });  }});