#a1 {    position: absolute;
        margin-left:90px;
        top: 400px;
        padding: 0;

}
#a1_txt {    position: relative;
        margin-left:10px;
        top: 0px;
        padding: 0;
	width:300px;
}
#a1_500 {   position: absolute; z-index:1;
        margin-left:170px;
        top:670px;
        padding: 0;
         visibility:hidden;
}

/*----------------------------*/
#a2{    position: absolute;
        margin-left:360px;
        top: 730px;
        padding: 0;

}
#a2_txt {    position: relative;
        margin-left:5px;
        top: 0px;
        padding: 0;
	width:300px;
}


#a2_500 {   position: absolute; z-index:1;
        margin-left:60px;
        top: 280px;
        padding: 0;
         visibility:hidden;
}

/*----------------------------*/