<!-- 
if(document.images){
b1off=new Image(); b1off.src="images/nav_home_01.gif";
b1on=new Image(); b1on.src="images/nav_home_02.gif";

b2off=new Image(); b2off.src="images/nav_ds_01.gif";
b2on=new Image(); b2on.src="images/nav_ds_02.gif";

b3off=new Image(); b3off.src="images/nav_pss_01.gif";
b3on=new Image(); b3on.src="images/nav_pss_02.gif";

b4off=new Image(); b4off.src="images/nav_oof_01.gif";
b4on=new Image(); b4on.src="images/nav_oof_02.gif";

b5off=new Image(); b5off.src="images/nav_pif_01.gif";
b5on=new Image(); b5on.src="images/nav_pif_02.gif";

b6off=new Image(); b6off.src="images/nav_cntus_01.gif";
b6on=new Image(); b6on.src="images/nav_cntus_02.gif";

b7off=new Image(); b7off.src="images/hd_ds_02.gif";
b7on=new Image(); b7on.src="images/hd_ds_01.gif";

b8off=new Image(); b8off.src="images/hd_pss_02.gif";
b8on=new Image(); b8on.src="images/hd_pss_01.gif";

}

function act(bn){
	if(document.images){
		loc = "b" + bn;
		document[loc].src = eval(loc + "on.src");
	}
}
function inact(bn){
	if(document.images){
		loc = "b" + bn;
		document[loc].src = eval(loc + "off.src");
	}
}
 //-->