When I Select The Menu That Should Highlighted With Different Color But It Is Not Working.

.activeanchor
{
    color:#333;
    text-decoration:none;
  width:auto;
  border-radius:4px 4px 4px 4px;
    background-color:#FFD47B;
    padding-bottom:2px;
padding-top:2px;
padding-left:10px;
padding-right:5px;


}

#cssmenu ul,
#cssmenu li,
#cssmenu span,
#cssmenu a {
  margin: 0;
  padding: 0;
  position: relative;
}
#cssmenu:after,
#cssmenu ul:after {
  content: '';
  display: block;
  clear: both;
}
#cssmenu a {
  color: #ffffff;
  display: inline-block;
  font-family: 'Lucida Grande', 'Lucida Sans Unicode', Helvetica, Arial, Verdana, sans-serif;
  font-size: 11px;
  min-width: 35px;
  text-align: center;
  text-decoration: none;
  text-shadow: 0 -1px 0 #333333;
}
#cssmenu ul {
  list-style: none;
}
#cssmenu > ul > li {
  float: left;
}
#cssmenu > ul > li.active a {
  background: #8a8a8a url(images/grad_dark.png) repeat-x left bottom;
  background: -moz-linear-gradient(top, #646464 0%, #4a4a4a 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #646464), color-stop(100%, #4a4a4a));
  background: -webkit-linear-gradient(top, #646464 0%, #4a4a4a 100%);
  background: -o-linear-gradient(top, #646464 0%, #4a4a4a 100%);
  background: -ms-linear-gradient(top, #646464 0%, #4a4a4a 100%);
  background: linear-gradient(to bottom, #646464 0%, #4a4a4a 100%);
  filter: progid:dximagetransform.microsoft.gradient(startColorstr='#646464', endColorstr='#4a4a4a', GradientType=0);
  box-shadow: inset 0 0 10px #222222, inset 0 10px 10px #222222;
  -moz-box-shadow: inset 0 0 10px #222222, inset 0 10px 10px #222222;
  -webkit-box-shadow: inset 0 0 10px #222222, inset 0 10px 10px #222222;
  filter: none;
}
#cssmenu > ul > li.active a:hover {
  background: -moz-linear-gradient(top, #646464 0%, #4a4a4a 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #646464), color-stop(100%, #4a4a4a));
  background: -webkit-linear-gradient(top, #646464 0%, #4a4a4a 100%);
  background: -o-linear-gradient(top, #646464 0%, #4a4a4a 100%);
  background: -ms-linear-gradient(top, #646464 0%, #4a4a4a 100%);
  background: linear-gradient(to bottom, #646464 0%, #4a4a4a 100%);
  filter: progid:dximagetransform.microsoft.gradient(startColorstr='#646464', endColorstr='#4a4a4a', GradientType=0);
  filter: none;
}
#cssmenu > ul > li a {
  box-shadow: inset 0 0 0 1px #8a8a8a;
  -moz-box-shadow: inset 0 0 0 1px #8a8a8a;
  -webkit-box-shadow: inset 0 0 0 1px #8a8a8a;
  background: #4a4a4a url(images/grad_dark.png) repeat-x left top;
  background: -moz-linear-gradient(top, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #8a8a8a), color-stop(50%, #707070), color-stop(51%, #626262), color-stop(100%,

#787878));
  background: -webkit-linear-gradient(top, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
  background: -o-linear-gradient(top, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
  background: -ms-linear-gradient(top, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
  background: linear-gradient(to bottom, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
  filter: progid:dximagetransform.microsoft.gradient(startColorstr='#8a8a8a', endColorstr='#787878', GradientType=0);
  border-bottom: 1px solid #5d5d5d;
  border-top: 1px solid #5d5d5d;
  border-right: 1px solid #5d5d5d;
  line-height: 28px;
  padding: 0 20px;
  filter: none;
}
#cssmenu > ul > li a:hover {
  background: #8a8a8a url(images/grad_dark.png) repeat-x left bottom;
  background: -moz-linear-gradient(top, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #646464), color-stop(50%, #4a4a4a), color-stop(51%, #3b3b3b), color-stop(100%,

#525252));
  background: -webkit-linear-gradient(top, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
  background: -o-linear-gradient(top, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
  background: -ms-linear-gradient(top, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
  background: linear-gradient(to bottom, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
  filter: progid:dximagetransform.microsoft.gradient(startColorstr='#8a8a8a', endColorstr='#787878', GradientType=0);
  filter: none;
}
#cssmenu > ul > li:first-child a {
  border-radius: 5px 0 0 5px;
  -moz-border-radius: 5px 0 0 5px;
  -webkit-border-radius: 5px 0 0 5px;
  border-left: 1px solid #5d5d5d;
}
#cssmenu > ul > li:last-child a {
  border-radius: 0 5px 5px 0;
  -moz-border-radius: 0 5px 5px 0;
  -webkit-border-radius: 0 5px 5px 0;
}
#cssmenu .has-sub:hover ul {
  display: block;
}
#cssmenu .has-sub ul {
  display: none;
  position: absolute;
  top: 28px;
  left: -1px;
  min-width: 100%;
  text-align: center;
  /* IE7 */

  *width: 100%;
}
#cssmenu .has-sub ul li {
  text-align: center;
  z-index:1;
}
#cssmenu .has-sub ul li a {
  border-top: 0 none;
  border-left: 1px solid #5d5d5d;
  display: block;
  line-height: 120%;
  padding: 9px 5px;
  text-align: center;
}





#cssmenu .has-sub1:hover ul {
  display: inline-block;
}
#cssmenu .has-sub1 ul {
  display: none;
  position: absolute;
  top: 28px;
  left: -1px;
  min-width: 100%;
  text-align: center;
  /* IE7 */

  *width: 100%;
}
#cssmenu .has-sub1 ul li {
  text-align: center;
  z-index:1;
}
#cssmenu .has-sub1 ul li a {
  border-top: 0 none;
  border-left: 1px solid #5d5d5d;
  display: block;
  line-height: 120%;
  padding: 9px 5px;
  text-align: center;
}

<script type="text/javascript">
        $(document).ready(function () {
            $('.cssmenu.has-sub ul li a').each(function (index) {
                if (this.href.trim() == window.location)
                    $(this).addClass("activeanchor");
            });

        });

   </script>

<ul><li class='has-sub'><a href='Home.aspx'><span>Home</span></a></li>
                    <li class='has-sub'><a href='#'><span>Organisation</span></a>
                        <ul>
                            <li class='has-sub'><a href="../OrganizationStructure/frmBusinessUnit.aspx"><span>Business Unit</span></a>  </li>

                        </ul>
                    </li>
                    <li class='has-sub'><a href="../EmployeeMaster/frmEmployeeSearch.aspx"><span>Employee</span></a> </li>
</ul>