ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false
use_forms = (top.ff)? true:false
arImageSrc = new Array (
"n_dn.gif",
"n_up.gif",
"n_act.gif",
"p_dn.gif",
"p_up.gif",
"p_act.gif",
"a_dn.gif",
"a_up.gif",
"a_act.gif"
)
arImageList = new Array ();
for (counter in arImageSrc) {
arImageList[counter] = new Image();
arImageList[counter].src = "i/" + 
arImageSrc[counter];
}
function hide(id) {
if (use_forms) {
top.ff.document.vf.bd.value = ""
top.ff.document.vf.bp.value = ""
top.ff.document.vf.dd.value = ""
top.ff.document.vf.dp.value = ""
top.ff.document.vf.ud.value = ""
top.ff.document.vf.up.value = ""
}
else if (ns4) document.layers[id].visibility = "hide"
else if (ie4) document.all[id].style.visibility = "hidden"
}
function onLoad() {
if (use_forms) {
top.ff.document.vf.bd.value = ""
top.ff.document.vf.bp.value = ""
top.ff.document.vf.dd.value = ""
top.ff.document.vf.dp.value = ""
top.ff.document.vf.ud.value = ""
top.ff.document.vf.up.value = ""
}
}