$(document).ready(function(){
  function SlideIn() {
    $("#slidingContentNavigation").removeClass("open");
    $("#slidingContentNavigation").addClass("close");
    $("#slidingContentNavigationBlock").css("width", "275px");
    $("#slidingContentNavigation").stop().animate({ 
      left: "0px"
    }, 800 );
  }
    
  function SlideOut() {
    $("#slidingContentNavigation").removeClass("close");
    $("#slidingContentNavigation").addClass("open");
    $("#slidingContentNavigation").stop().animate({ 
      left: "-255px"
    }, 800, function() {
      $("#slidingContentNavigationBlock").css("width", "20px");  
    });
  }
    
  $("#slidingContentNavigation").hover(SlideIn, SlideOut);
  
});