ul#main_nav a { display: block; height:27px; text-indent: -9999px; text-decoration: none; overflow: hidden; }

/*NAVIGATION*/

body { behavior:url(csshover.htc); }
ul#main_nav  { list-style-type:none; position:relative; width:909px; height:27px; margin:0; padding:0; background:url(../images/main_table_nav.png); z-index: 8; }
ul#main_nav li { padding: 0; margin: 0; display: block; float: left; }
ul#main_nav a { display: block; height:27px; text-decoration: none; overflow: hidden; }

li#nm_5 { position:absolute; top: 0px; left:40px; width: 84px; height:27px; background:url(../images/nav_home_mn.png) no-repeat 0 0; }
li#nm_1 { position:absolute; top: 0px; left:124px; width: 119px; height:27px; background:url(../images/nav_comm.png) no-repeat 0 0; }
li#nm_2 { position:absolute; top: 0px; left:243px; width: 105px; height:27px; background:url(../images/nav_indu.png) no-repeat 0 0; }
li#nm_3 { position:absolute; top: 0px; left:348px; width: 155px; height:27px; background:url(../images/nav_home.png) no-repeat 0 0; }
li#nm_4 { position:absolute; top: 0px; left:503px; width: 106px; height:27px; background:url(../images/nav_ctct.png) no-repeat 0 0; }

li#nm_5 a:hover { background:url(../images/nav_home_mn.png) no-repeat -84px 0px;}
li#nm_1 a:hover { background:url(../images/nav_comm.png) no-repeat -119px 0px;}
li#nm_2 a:hover { background:url(../images/nav_indu.png) no-repeat -105px 0px;}
li#nm_3 a:hover { background:url(../images/nav_home.png) no-repeat -155px 0px;}
li#nm_4 a:hover { background:url(../images/nav_ctct.png) no-repeat -106px 0px;}

/*SUB*/

#main_nav li ul { display: block; visibility: hidden; position: absolute; left: 0px; width: 300px; margin: 0; }
#main_nav li:hover ul { visibility: visible; z-index: 100; }
#main_nav li#nm_1 ul { background: none; height: 27px; margin-left: 10px; }
#main_nav li#products ul { background: none; height: 21px; margin-left: 37px; }

ul#main_nav li#nm_1 ul li#sm_1 { position:absolute; top: 0px; left:0px; width: 101px; height:27px; background:url(../images/nav_cs.png) no-repeat 0 0; }
ul#main_nav li#nm_1 ul li#sm_1 a:hover { background:url(../images/nav_cs.png) no-repeat -101px 0px; }

ul#main_nav li#nm_1 ul li#sm_2 { position:absolute; top: 0px; left:101px; width: 95px; height:27px; background:url(../images/nav_ns.png) no-repeat 0 0; }
ul#main_nav li#nm_1 ul li#sm_2 a:hover { background:url(../images/nav_ns.png) no-repeat -95px 0px; }

ul#main_nav li#nm_1 ul li#sm_3 { position:absolute; top: 0px; left:196px; width: 135px; height:27px; background:url(../images/nav_pc.png) no-repeat 0 0; }
ul#main_nav li#nm_1 ul li#sm_3 a:hover { background:url(../images/nav_pc.png) no-repeat -135px 0px; }

ul#main_nav li#nm_3 ul li#sm_4 { position:absolute; top: 0px; left:10px; width: 127px; height:27px; background:url(../images/nav_hbp.png) no-repeat 0 0; }
ul#main_nav li#nm_3 ul li#sm_4 a:hover { background:url(../images/nav_hbp.png) no-repeat -127px 0px; }

ul#main_nav li#nm_3 ul li#sm_5 { position:absolute; top: 0px; left:137px; width: 166px; height:27px; background:url(../images/nav_hbw.png) no-repeat 0 0; }
ul#main_nav li#nm_3 ul li#sm_5 a:hover { background:url(../images/nav_hbw.png) no-repeat -166px 0px; }

ul#main_nav li#nm_3 ul li#sm_6 { position:absolute; top: 0px; left:303px; width: 166px; height:27px; background:url(../images/nav_red.png) no-repeat 0 0; }
ul#main_nav li#nm_3 ul li#sm_6 a:hover { background:url(../images/nav_red.png) no-repeat -166px 0px; }