#sub_about_us, #sub_press, #sub_community, #sub_x {
	  /* for IE */
	  filter:alpha(opacity=80);
	  /* CSS3 standard */
	  opacity:0.8;
	  background:#FFF;
	  height:22px;
	  padding-top:8px;
	  display:none;
	  margin-top:-189px;
	  position: absolute;
	  z-index:100;
	}
	
	#sub_x {
	  /* for IE */
	  filter:alpha(opacity=0);
	  /* CSS3 standard */
	  opacity:0.0;
	   display:block;
	}
	
	#sub_about_us { padding-left:300px;width:565px;}

	#sub_press { padding-left:580px; width:285px;}
	
	#sub_community { padding-left:280px; width:585px;}

	#main_navigation li {
		margin-top:1px;
	}