#menu1 {background: url(menu/site_18.jpg) no-repeat; }
#menu1 a:hover{background: url(menu/site1_18.jpg) no-repeat;}
#menu1 img:hover{background: url(menu/site1_18.jpg) no-repeat; }

#menu2 {background: url(menu/site_04.jpg) no-repeat; }
#menu2 a:hover{background: url(menu/site1_04.jpg) no-repeat;}
#menu2 img:hover{background: url(menu/site1_04.jpg) no-repeat;}

#menu3 {background: url(menu/site_06.jpg) no-repeat; }
#menu3 a:hover{background: url(menu/site1_06.jpg) no-repeat;}
#menu3 img:hover{background: url(menu/site1_06.jpg) no-repeat;}

#menu4 {background: url(menu/site_08.jpg) no-repeat; }
#menu4 a:hover{background: url(menu/site1_08.jpg) no-repeat;}
#menu4 img:hover{background: url(menu/site1_08.jpg) no-repeat;}

#menu5 {background: url(menu/site_10.jpg) no-repeat; }
#menu5 a:hover{background: url(menu/site1_10.jpg) no-repeat;}
#menu5 img:hover{background: url(menu/site1_10.jpg) no-repeat;}

#menu6 {background: url(menu/site_12.jpg) no-repeat; }
#menu6 a:hover{background: url(menu/site1_12.jpg) no-repeat;}
#menu6 img:hover{background: url(menu/site1_12.jpg) no-repeat;}

#menu7 {background: url(menu/site_16.jpg) no-repeat; }
#menu7 a:hover{background: url(menu/site1_16.jpg) no-repeat;}
#menu7 img:hover{background: url(menu/site1_16.jpg) no-repeat;}

#menu11 {background: url(menu/site1_18.jpg) no-repeat; }
#menu21 {background: url(menu/site1_04.jpg) no-repeat; }
#menu31 {background: url(menu/site1_06.jpg) no-repeat; }
#menu41 {background: url(menu/site1_08.jpg) no-repeat; }
#menu51 {background: url(menu/site1_10.jpg) no-repeat; }
#menu61 {background: url(menu/site1_12.jpg) no-repeat; }
#menu71 {background: url(menu/site1_16.jpg) no-repeat; }


#preloadImages {
width: 0px;
height: 0px;
display: inline;
background-image: url("images/site1_18.jpg");
background-image: url("images/site1_04.jpg");
background-image: url("images/site1_06.jpg");
background-image: url("images/site1_08.jpg");
background-image: url("images/site1_10.jpg");
background-image: url("images/site1_12.jpg");
background-image: url("images/site1_16.jpg");
background-image: none;
clip: rect(0 0 0 0);
}