/*遮罩*/
*{
margin: 0px;padding: 0px;
}
#thisBG{ display: none;  position: absolute;  top: 0%;  left: 0%;  width: 100%;  height: 100%;  background-color: black;  z-index:1001;  -moz-opacity: 0.7;  opacity:.70;  filter: alpha(opacity=20);}  
#showMask{ display: none;  position:absolute;  top: 10%;  left: 4%;  width: 90%;  height: 80%;  padding: 8px;max-width:1000px;  background-color:white;     z-index:1002;  overflow: auto; }
#divtitle {  position:fixed;float:left;top: 0%;  left: 0%;  width: 100%; padding: 1px; height: 22px; background-color:Gray;  z-index:1003;  -moz-opacity: 0.7;  opacity:.70;}
#showMaskbtn {  position:fixed;float:right;right: 1%;}