//*****************************************
//DHTML MENU Version 1.0
// IE4 NS4 IE5 NS6
//*****************************************


var nav = (document.layers) ? true : false;
var iex = ((navigator.userAgent.indexOf("MSIE") != -1 && navigator.userAgent.indexOf("Windows") != -1 && navigator.appVersion.substring(0,1) > 3));
var ns6 = (navigator.appName.indexOf("Netscape") !=1 && parseInt(navigator.appVersion)>=5);

function showMenu( targetId ){
if (iex){
      target = document.all( targetId );
      target.style.visibility = "visible";
      }
if (nav){
      document[targetId].visibility = "show";
      }
if (ns6){
      document.getElementById(targetId).style.visibility = "visible";
      }
}

function hideMenu( targetId ){
if (iex){
      target = document.all( targetId );
      target.style.visibility = "hidden";
      }
if (nav){
      document[targetId].visibility = "hide";
      }
if (ns6){
      document.getElementById(targetId).style.visibility = "hidden";
      }
}

function tabOn(whichtab){
   showMenu(whichtab+"_submenu"); imgActive(whichtab); return true;
}

function tabOff(whichtab){
   hideMenu(whichtab+"_submenu"); imgInactive(whichtab); return true;
}

var begin_submenu_text = '<TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0" WIDTH="100%"><TR><TD BGCOLOR="#660000"><TABLE BORDER="0" CELLSPACING="1" CELLPADDING="0" WIDTH="100%"><TR><TD><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="3" WIDTH="100%" BGCOLOR="#FFFFFF">';
var end_submenu_text = '</TABLE></TD></TR></TABLE></TD></TR></TABLE>';
var begin_tr = '<TR><TD><FONT FACE="Arial, Helvetica, sans-serif" SIZE="1" CLASS="submenu">';
var end_tr = '</FONT></TD></TR>';
var begin_td = '<TD><FONT FACE="Arial, Helvetica, sans-serif" SIZE="1" CLASS="submenu">';
var end_td = '</FONT></TD>';



//tombs submenu 
var tombs_submenu_text = ''; 
 
tombs_submenu_text = tombs_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-tombs-page.htm#number2">Qin Tombs</A>&nbsp;&nbsp;' + end_tr;

tombs_submenu_text = tombs_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-tombs-page.htm#number3">Han Tombs</A>&nbsp;&nbsp;' + end_tr; 
tombs_submenu_text = tombs_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-tombs-page.htm#number5">Tang Tombs</A>&nbsp;&nbsp;' + end_tr; 


if(nav) document.write('<LAYER ID="TOMBS_submenu" visibility="hide" position="absolute" top="90" left="370" width="100" bgcolor="#EFEBEF" ONMOUSEOVER=tabOn("TOMBS"); ONMOUSEOUT=tabOff("TOMBS");><DIV>' + begin_submenu_text + tombs_submenu_text + end_submenu_text + '</DIV></LAYER>');
if((iex)||(ns6)) document.write('<DIV ID="TOMBS_submenu" STYLE="visibility:hidden; position:absolute; top:90; left:370; width:100; background-color:#EFEBEF" ONMOUSEOVER=tabOn("TOMBS"); ONMOUSEOUT=tabOff("TOMBS");>' + begin_submenu_text + tombs_submenu_text + end_submenu_text + '</DIV>');


//dynasties submenu
var dynasties_submenu_text = '';
dynasties_submenu_text = dynasties_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-dynasties-qin-page.htm">Qin Dynasty</A>&nbsp;&nbsp;' + end_tr;
dynasties_submenu_text = dynasties_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-dynasties-han-page.htm">Han Dynasty</A>&nbsp;&nbsp;' + end_tr;
dynasties_submenu_text = dynasties_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-dynasties-tang-page.htm">Tang Dynasty</A>&nbsp;&nbsp;' + end_tr;



if(nav) document.write('<LAYER ID="DYNASTIES_submenu" visibility="hide" position="absolute" top="90" left="450" width="110" bgcolor="#EFEBEF" ONMOUSEOVER=tabOn("DYNASTIES"); ONMOUSEOUT=tabOff("DYNASTIES");><DIV>' + begin_submenu_text + dynasties_submenu_text + end_submenu_text + '</DIV></LAYER>');
if((iex)||(ns6)) document.write('<DIV ID="DYNASTIES_submenu" STYLE="visibility:hidden; position:absolute; top:90; left:450; width:110; background-color:#EFEBEF" ONMOUSEOVER=tabOn("DYNASTIES"); ONMOUSEOUT=tabOff("DYNASTIES");>' + begin_submenu_text + dynasties_submenu_text + end_submenu_text + '</DIV>');



//gallery submenu
var gallery_submenu_text = '';
gallery_submenu_text = gallery_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-gallery-page.htm#number1">Qin Gallery</A>&nbsp;&nbsp;' + end_tr;
gallery_submenu_text = gallery_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-gallery-page.htm#number2">Han Gallery</A>&nbsp;&nbsp;' + end_tr;

gallery_submenu_text = gallery_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-gallery-page.htm#number3">Tang Gallery</A>&nbsp;&nbsp;' + end_tr;




if(nav) document.write('<LAYER ID="GALLERY_submenu" visibility="hide" position="absolute" top="90" left="555" width="100" bgcolor="#EFEBEF" ONMOUSEOVER=tabOn("GALLERY"); ONMOUSEOUT=tabOff("GALLERY");><DIV>' + begin_submenu_text + gallery_submenu_text + end_submenu_text + '</DIV></LAYER>');
if((iex)||(ns6)) document.write('<DIV ID="GALLERY_submenu" STYLE="visibility:hidden; position:absolute; top:90; left:555; width:100; background-color:#EFEBEF" ONMOUSEOVER=tabOn("GALLERY"); ONMOUSEOUT=tabOff("GALLERY");>' + begin_submenu_text + gallery_submenu_text + end_submenu_text + '</DIV>');


//qin submenu
var qin_submenu_text = '';
qin_submenu_text = qin_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-dynasties-qin-page.htm">Qin Dynasty</A>&nbsp;&nbsp;' + end_tr;
qin_submenu_text = qin_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-tombs-page.htm#number3">Qin Tombs</A>&nbsp;&nbsp;' + end_tr;
qin_submenu_text = qin_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-gallery-page.htm#number1">Qin Gallery</A>&nbsp;&nbsp;' + end_tr;



if(nav) document.write('<LAYER ID="QIN_submenu" visibility="hide" position="absolute" top="335" left="385" width="90" bgcolor="#EFEBEF" ONMOUSEOVER=tabOn("QIN"); ONMOUSEOUT=tabOff("QIN");><DIV>' + begin_submenu_text + qin_submenu_text + end_submenu_text + '</DIV></LAYER>');
if((iex)||(ns6)) document.write('<DIV ID="QIN_submenu" STYLE="visibility:hidden; position:absolute; top:335; left:385; width:110; background-color:#EFEBEF" ONMOUSEOVER=tabOn("QIN"); ONMOUSEOUT=tabOff("QIN");>' + begin_submenu_text + qin_submenu_text + end_submenu_text + '</DIV>');


//han submenu
var han_submenu_text = '';
han_submenu_text = han_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-dynasties-han-page.htm">Han Dynasty</A>&nbsp;&nbsp;' + end_tr;
han_submenu_text = han_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-tombs-page.htm#number3">Han Tombs</A>&nbsp;&nbsp;' + end_tr;
han_submenu_text = han_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-gallery-page.htm#number2">Han Gallery</A>&nbsp;&nbsp;' + end_tr;



if(nav) document.write('<LAYER ID="HAN_submenu" visibility="hide" position="absolute" top="370" left="385" width="90" bgcolor="#EFEBEF" ONMOUSEOVER=tabOn("HAN"); ONMOUSEOUT=tabOff("HAN");><DIV>' + begin_submenu_text + han_submenu_text + end_submenu_text + '</DIV></LAYER>');
if((iex)||(ns6)) document.write('<DIV ID="HAN_submenu" STYLE="visibility:hidden; position:absolute; top:370; left:385; width:110; background-color:#EFEBEF" ONMOUSEOVER=tabOn("HAN"); ONMOUSEOUT=tabOff("HAN");>' + begin_submenu_text + han_submenu_text + end_submenu_text + '</DIV>');


//tang submenu
var tang_submenu_text = '';
tang_submenu_text = tang_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-dynasties-tang-page.htm">Tang Dynasty</A>&nbsp;&nbsp;' + end_tr;
tang_submenu_text = tang_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-tombs-page.htm#number5">Tang Tombs</A>&nbsp;&nbsp;' + end_tr;
tang_submenu_text = tang_submenu_text + begin_tr + '&nbsp;&nbsp;<A HREF="tomb-gallery-page.htm#number3">Tang Gallery</A>&nbsp;&nbsp;' + end_tr;



if(nav) document.write('<LAYER ID="TANG_submenu" visibility="hide" position="absolute" top="405" left="385" width="90" bgcolor="#EFEBEF" ONMOUSEOVER=tabOn("TANG"); ONMOUSEOUT=tabOff("TANG");><DIV>' + begin_submenu_text + tang_submenu_text + end_submenu_text + '</DIV></LAYER>');
if((iex)||(ns6)) document.write('<DIV ID="TANG_submenu" STYLE="visibility:hidden; position:absolute; top:405; left:385; width:110; background-color:#EFEBEF" ONMOUSEOVER=tabOn("TANG"); ONMOUSEOUT=tabOff("TANG");>' + begin_submenu_text + tang_submenu_text + end_submenu_text + '</DIV>');




// Detect browser type and version
//
bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
if ((bName == "Netscape" && bVer >=3) || (bName == "Microsoft Internet Explorer" && bVer >=4)) br = "n3";
else br = "n2";
//
// Rollover images and functions
//
if ( br == "n3" ) {
   TOMBS_on = new Image();
   TOMBS_on.src = "web-images/tome-t2-r.gif";
   DYNASTIES_on = new Image();
   DYNASTIES_on.src = "web-images/tome-t3-r.gif";
   GALLERY_on = new Image();
   GALLERY_on.src = "web-images/tome-t4-r.gif";
   QIN_on = new Image();
   QIN_on.src = "web-images/tome-t-qin-r.gif";
   HAN_on = new Image();
   HAN_on.src = "web-images/tome-t-han-r.gif";
   TANG_on = new Image();
   TANG_on.src = "web-images/tome-t-tang-r.gif";


  
   TOMBS_off = new Image();
   TOMBS_off.src = "web-images/tome-t2-g.gif";
   DYNASTIES_off = new Image();
   DYNASTIES_off.src = "web-images/tome-t3-g.gif";
   GALLERY_off = new Image();
   GALLERY_off.src = "web-images/tome-t4-g.gif";
   QIN_off = new Image();
   QIN_off.src = "web-images/tome-t-qin-g.gif";
   HAN_off = new Image();
   HAN_off.src = "web-images/tome-t-han-g.gif";
   TANG_off = new Image();
   TANG_off.src = "web-images/tome-t-tang-g.gif";

   HOME_on = new Image();
   HOME_on.src = "web-images/tome-t1-r.gif";

   HOME_off = new Image();
   HOME_off.src = "web-images/tome-t1-g.gif";

   TIME_on = new Image();
   TIME_on.src = "web-images/tome-t5-r.gif";

   TIME_off = new Image();
   TIME_off.src = "web-images/tome-t5-g.gif";



}

function imgActive(imgName) {
   if (br == "n3") {
      imgOn = eval(imgName + "_on.src");
      document[ imgName ].src = imgOn;
   }
}

function imgInactive(imgName) {
   if (br == "n3") {
      imgOff = eval(imgName + "_off.src");
      document[ imgName ].src = imgOff;
   }
}