var version = navigator.appVersion;

version = version.substring(0,1);

var browser = navigator.appName;

var chk = 1;

if ((browser =="Netscape" && version >= "3") || (browser =="Microsoft Internet Explorer" && version >= "4")){
chk = 0;
}
else {
chk = 1;
}


if (chk == 0)
{
images=new Array();
images[0]=new Image();
images[0].src="../bg/nav_doc.gif";
images[1]=new Image();
images[1].src="../bg/nav_event.gif";
images[2]=new Image();
images[2].src="../bg/nav_exhibit.gif";
images[3]=new Image();
images[3].src="../bg/nav_hs.gif";
images[4]=new Image();
images[4].src="../bg/nav_resi.gif";
images[5]=new Image();
images[5].src="../bg/nav_sympo.gif";
images[6]=new Image();
images[6].src="../bg/nav_ws.gif";
}


if (chk == 0)
{
doc1=new Image();
doc2=new Image();
doc1.src="../bg/ttl_hs.gif";
doc2.src="../bg/nav_doc.gif";

event1=new Image();
event2=new Image();
event1.src="../bg/ttl_hs.gif";
event2.src="../bg/nav_event.gif";

exhibit1=new Image();
exhibit2=new Image();
exhibit1.src="../bg/ttl_hs.gif";
exhibit2.src="../bg/nav_exhibit.gif";

hs1=new Image();
hs2=new Image();
hs1.src="../bg/ttl_hs.gif";
hs2.src="../bg/nav_hs.gif";

resi1=new Image();
resi2=new Image();
resi1.src="../bg/ttl_hs.gif";
resi2.src="../bg/nav_resi.gif";

sympo1=new Image();
sympo2=new Image();
sympo1.src="../bg/ttl_hs.gif";
sympo2.src="../bg/nav_sympo.gif";

ws1=new Image();
ws2=new Image();
ws1.src="../bg/ttl_hs.gif";
ws2.src="../bg/nav_ws.gif";

}
function display(num) {

if (chk == 0) {
if (num == 1) {
document.navi.src=doc2.src;
document.navi.src=doc2.src;
return true;

}else if (num == 2) {
document.navi.src=doc1.src;
document.navi.src=doc1.src;
return true;

}else if (num == 3) {
document.navi.src=event2.src;
document.navi.src=event2.src;
return true;

}else if (num == 4) {
document.navi.src=event1.src;
document.navi.src=event1.src;
return true;

}else if (num == 5) {
document.navi.src=exhibit2.src;
document.navi.src=exhibit2.src;
return true;

}else if (num == 6) {
document.navi.src=exhibit1.src;
document.navi.src=exhibit1.src;
return true;

}else if (num == 7) {
document.navi.src=hs2.src;
document.navi.src=hs2.src;
return true;

}else if (num == 8) {
document.navi.src=hs1.src;
document.navi.src=hs1.src;
return true;

}else if (num == 9) {
document.navi.src=resi2.src;
document.navi.src=resi2.src;
return true;

}else if (num == 10) {
document.navi.src=resi1.src;
document.navi.src=resi1.src;
return true;

}else if (num == 11) {
document.navi.src=sympo2.src;
document.navi.src=sympo2.src;
return true;

}else if (num == 12) {
document.navi.src=sympo1.src;
document.navi.src=sympo1.src;
return true;

}else if (num == 13) {
document.navi.src=ws2.src;
document.navi.src=ws2.src;
return true;

}else if (num == 14) {
document.navi.src=ws1.src;
document.navi.src=ws1.src;
return true;
}
}

else {

return false;

}
}