#main_menu{float:right;}
    #main_menu ul, li{margin:0; border:0; list-style:none; padding:0;}
	#main_menu ul{height:21px;}

	#main_menu {  padding:10px;}
	#main_menu a { 
		text-decoration:none;
		font-size:12px;
		font-weight:bold;
		color:#ffffff;
		padding:6px 7px;
		margin:0px 5px 0px 5px;
	}
	#main_menu a:hover { 
		background-color:#444444;
		outline:none;
	}	
	#main_menu li { display:inline; position:relative; }
	#main_menu li { position:relative; z-index:10;  border-bottom:none; line-height:18px; }	
	*+html #main_menu li span.active {  border-top:solid 2px #E5E5E5; padding-bottom:3px; }
	#main_menu div.sub_menu { display:none; position:absolute; left:0; top:0px; margin-top:20px; border:solid 1px #222222; padding:4px; top:2px; width:160px; background:#FFFFFF; }
	#main_menu div.sub_menu a{
	    color:#3b5998;
	}
	
	#main_menu div.sub_menu a:hover{
	    color:#3b5998;
	    background-color:#f7f7f7;
	}
	
	* html #main_menu div.sub_menu { margin-top:23px; } /* IE6 */
	*+html #main_menu div.sub_menu { margin-top:23px; } /* IE7 */
	#main_menu div.sub_menu a:link, 
	#main_menu div.sub_menu a:visited, 
	#main_menu div.sub_menu a:hover{ display:block; font-size:11px; padding:4px 8px;}	
	#main_menu a.item_line { border-top:solid 1px #E5E5E5; padding-top:6px !important; margin-top:3px; }
	.sub_menu_chat{overflow:auto; height:150px;}