$(document).ready(function () {
  $('div.jimgMenu ul li a').hover(function() {  
    if ($(this).is(':animated')) {
      $(this).addClass("active").stop().animate({width: "260px"}, {duration: 450, easing: "easeOutQuad", complete: "callback"});
    } else {
      $(this).addClass("active").stop().animate({width: "260px"}, {duration: 400, easing: "easeOutQuad", complete: "callback"});
    }
  }, function () {
    if ($(this).is(':animated')) {
      $(this).removeClass("active").stop().animate({width: "65px"}, {duration: 400, easing: "easeInOutQuad", complete: "callback"})
    } else {
      $(this).removeClass("active").stop(':animated').animate({width: "65px"}, {duration: 450, easing: "easeInOutQuad", complete: "callback"});
    }
  });
});