body{ margin:0px;}
.div_buttom
{
   width:100%;
   height:1200px;
   text-align:left;
   z-index:1;
   top: 0px;
   left: 0px;
   margin-left:0px;
   margin-top:0px; 
}

.div_full
{
    z-index:100;
    height:100%;
    width:100%;
    position:absolute;
    background-color:#000;
    opacity:20;
    filter:alpha(opacity:20);
    overflow:hidden;
    opacity: 0.20;
     MozOpacity:0.2;
      -moz-opacity:0.2;
    left:0px;
    top:0px;
}

#div_ad
{
   z-index:102;
   font-size:1px;
   width:436px;
   height:280px;  
   top:65%;
   left:50%;
   position:absolute;
   background-color:White;
   margin-left:-218px;
   margin-top:-140px; 
}

#div_addown
{
   z-index:101;
   width:456px;
   height:300px;  
   top:65%;
   left:50%;
   position:absolute;
   background-color:White;
   margin-left:-228px;
   margin-top:-150px;     
   background-color:White;
   opacity:40;
   filter:alpha(opacity:40);   
   overflow:hidden;
   -moz-opacity: 0.40;
}