jQuery(function(){
  //vars
  var conveyor = jQuery(".content-conveyor",jQuery("#slideWrapper")),item = jQuery(".item",jQuery("#slideWrapper"));

  conveyor.css("width",item.length * parseInt(item.css("width")));

        var sliderOpts = {
    max: (item.length * parseInt(item.css("width"))) - parseInt(jQuery("#slideContent",jQuery("#slideWrapper")).css("width")),slide: function(e,ui) { 
            conveyor.css("left","-" + ui.value + "px");
          }
        };

        jQuery("#slider").slider(sliderOpts);
      });