#loadingDiv {
	display: none;
    position: absolute;
    left: 0;
    top: 0;
    height: 500px;
    width: 960px;
    background: url("../images/loading.gif") no-repeat 58% 93px;
	/*半透明*/
    background-color: #fff;
	filter:alpha(opacity=50); /* IE */ ; 
	-moz-opacity:0.5; /* Moz + FF */ ; 
	opacity: 0.5; /* 支持CSS3的浏览器（FF 1.5也支持）*/
}

#measure {
	display: block;
	position: absolute;
	left: 70;
	top: 0;
	width: 100px;
	width: 100px
}