/*首页webcast*/

                .fixedMask {
                    position:fixed;
                    display:none;
                    top:0;
                    left:0;
                    z-index:999;
                    width:100%;
                    height:100%;
                    background:#000;
                    filter:alpha(opacity=30);
                    opacity:0.3;
                }
                * html {
                    background:url(*) fixed;
                }
                * html body {
                    margin:0;
                    height:100%;
                }
                *html .fixedMask {
                    position: absolute;
                left: expression(documentElement.scrollLeft + documentElement.clientWidth - this.offsetWidth);
                top: expression(documentElement.scrollTop + documentElement.clientHeight - this.offsetHeight);
                }
                 #ad {
                    width:730px;
                    height:410px;
                    border:0px solid #333;
                    border-top-width:0px;
                    position:fixed;
                    z-index:9999;
                    left:72.5%;
                    margin-left:-535px;
                    top:44.5%;
                    margin-top:-230px;
                    display:block;
                }
                .ada {
                    width: 60px;
                    height: 27px;
                    text-align: center;
                    line-height: 27px;
                    font-size: 18px;
                    display:block;
                    position:absolute;
                    text-decoration:none;
                    right:0px;
                    top:0px;
                  
                    background:#0060A6;
                    padding:2px 5px;
                    color:#fff;
                }
                .ada a:hover {
                    background:#0060A6;
                }
				#ad img {
                    width:730px;
					height:410px;
                }
				.fixedcasturl{
					display:block;
					position: relative;
					height: 30px;
					display: block;
					top: -70px;   
					width: auto;
							}
												
				.lefta{
				background: no-repeat center;
				display:block;
				float:left;
				margin-left:10px;
				width:120px;
				height:58px;
				}
				.middleta{
				background: no-repeat center;
				display:block;
				float:left;
				margin-left:42%;
				width:103px;
				height:58px;				
				}				
				.righta{
				background: no-repeat center;				
				display:block;
				float:right;
				margin-left:0px;
				width:90px;
				height:58px;				
				}