Something

<html xmlns="http://www.w3.org/1999/xhtml">

<head>
<style>
.head_menu {
 border: 1px solid #000000;
 width:250px;
 height:50px;
 background-color: #3333FF;
}
.sub_menu {
  border: 1px solid #000000;
  width:250px;
  height:400px;
}


</style>

<script>
addClass(document.getElementById('sub'),'hidden'); then div.hidden {display: none;}
function hide_ic() {
document.getElementById("sub").style.display="hidden";
}
</script>

  <title>Hello!</title>
</head>

<body>
<div class="head_menu">
<a href="javascript:hide_ic()"><img id="dis" align="right" src="Daisy.ico" /></a>Login </div>
</div>
<div class="sub_menu" id="sub">Here Is The Details</div>


</body>

</html>