ul,li{margin:0px;padding:0px;}
ul#gnavi{ width:150px; clear:both; list-style-type: none;}
#gnavi li {display: block;width: 150px;height: 50px;float:left;}
#gnavi li a {list-style-type: none;display: block;position: absolute;width: 150px;height: 50px;overflow: hidden;}

#gnavi li#gnavi01 a {
    background-image: url('side_menu.gif');
background-position:0px 0px;background-repeat:no-repeat;text-indent:-6000em;}

#gnavi li#gnavi01 a:hover 
{background-image: url('side_menu.gif');background-position:-150px 0px;
background-repeat:no-repeat;
text-indent:-6000em;}

#gnavi li#gnavi02 a {
    background-image: url('side_menu.gif');
background-position:0px -50px;
background-repeat:no-repeat;text-indent:-6000em;}

#gnavi li#gnavi02 a:hover {
    background-image: url('side_menu.gif');
background-position:-150px -50px;
background-repeat:no-repeat;text-indent:-6000px;}

#gnavi li#gnavi03 a {
    background-image: url('side_menu.gif');
background-position:0px -100px;
background-repeat:no-repeat;
text-indent:-6000em;}

#gnavi li#gnavi03 a:hover {
    background-image: url('side_menu.gif');
background-position:-150px -100px;
background-repeat:no-repeat;
text-indent:-6000em;
}

#gnavi li#gnavi04 a {
    background-image: url('side_menu.gif');
background-position:0px -150px;
background-repeat:no-repeat;
text-indent:-6000em;
}

#gnavi li#gnavi04 a:hover {
    background-image: url('side_menu.gif');
background-position:-150px -150px;
background-repeat:no-repeat;
text-indent:-6000em;
}

#gnavi li#gnavi05 a {
    background-image: url('side_menu.gif');
background-position:0px -200px;
background-repeat:no-repeat;
text-indent:-6000em;
}

#gnavi li#gnavi05 a:hover {
    background-image: url('side_menu.gif');
background-position:-150px -200px;
background-repeat:no-repeat;
text-indent:-6000em;
}