// javascript by Marco Balestra <balestra@cesmail.net>

if (! window.getObj) getObj = function(divId) {
    if (document.getElementById) return document.getElementById(divId) ? document.getElementById(divId) : false;
    if (document.all) return document.all[divId] ? document.all[divId] : false;
    return false;
  };

if (! window.showHideDiv) showHideDiv = function(divId) {
    var x = getObj(divId);
    if ( (x) && (x.style) ) x.style.display = String(x.style.display) == 'inline' ? 'none' : 'inline';
    return void(0);
  };

if (! window.showHideDiv2) showHideDiv2 = function(divId) {
    var i,x = getObj(divId);
    if ( (x) && (x.style) ) {
      var curVal = String(x.style.display);
      x.style.display = curVal == 'block' ? 'none' : 'block';
      if ((window.searchableItems) && (searchableItems[divId])) for (i=0; i< searchableItems[divId].length; i++) showDiv2('searchableItem'+searchableItems[divId][i]);
    }
    return void(0);
  };

if (! window.showHideDiv3) showHideDiv3 = function(divId) {
    var x = getObj(divId);
    if ( (x) && (x.style) ) {
      var curVal = String(x.style.display);
      x.style.display = curVal == 'block' ? 'none' : 'block';
    }
    return void(0);
  };

if (! window.showDiv) showDiv = function(divId) {
    var x = getObj(divId);
    if ( (x) && (x.style) ) x.style.display = 'inline';
    return void(0);
  };

if (! window.showDiv2) showDiv2 = function(divId) {
    var x = getObj(divId);
    if ( (x) && (x.style) ) x.style.display = 'block';
    return void(0);
  };

if (! window.hideDiv) hideDiv = function(divId) {
    var x = getObj(divId);
    if ( (x) && (x.style) ) x.style.display = 'none';
    return void(0);
  };

if (! window.hideDiv2) hideDiv2 = function(divId) {
    var x = getObj(divId);
    if ( (x) && (x.style) ) x.style.display = 'none';
    return void(0);
  };

if (! window.setObjDisplay) setObjDisplay = function(divId,displayMode) {
    var x = getObj(divId);
    if ( (x) && (x.style) ) x.style.display = displayMode;
    return void(0);
  };

if (! window.xml_Load) xml_Load = function(url,functionObj,alertForError,sourceDisplay) {
    // Load xml document, params:
    // 1. xml URI (must return mime text/xml)
    // 2. reference to function that will process document
    var e,req = false;
    if (alertForError == undefined) alertForError = true;
    if (sourceDisplay == undefined) sourceDisplay = false;
    if(window.XMLHttpRequest) {
      try { req = new XMLHttpRequest() } catch(e) { req = false }
    } else if(window.ActiveXObject) {
      try {
        req = new ActiveXObject("Msxml2.XMLHTTP");
      } catch(e) {
        try { req = new ActiveXObject("Microsoft.XMLHTTP") } catch(e) { req = false }
      }
    }
    if(req) {
      try { req.overrideMimeType("text/xml") } catch(e) { };
      try { req.setRequestHeader("Cookie", document.cookie) } catch(e) { };
      req.onreadystatechange = function() {
        if (req.readyState != 4) return void(0);
        if (req.status != 200) {
          if (alertForError) alert("There was a problem retrieving the XML data:\r\n" + req.statusText);
          return void(0);
        }
        if(sourceDisplay) sourceDisplay.innerHTML='<pre>'+req.responseText.replace(/</g,"&lt;").replace(/[\n\r]+/g,'<br />')+'</pre>';
        functionObj(req.responseXML);
      };
      req.open('GET', url, true);
      req.send('');
      return true;
    } else {
      if (alertForError) alert('Cannot load xml:\r\n' + e);
      return false;
    }
  };

if (! window.xml_childByName) xml_childByName = function(node_name, parentElem, index) {
    if (index == undefined) index = 0;
    var nodeObj = parentElem.getElementsByTagName(node_name)[index];
    return (nodeObj) ? nodeObj : false;
  };

if (! window.xml_nodeText) xml_nodeText = function(node_ref) {
    if (!(node_ref)) return false;
    if (! node_ref.hasChildNodes() ) return '';
    // get text, accounting for possible whitespace (carriage return) text nodes
    return (node_ref.childNodes.length > 1) ? node_ref.childNodes[1].nodeValue : node_ref.firstChild.nodeValue;
  };

if (! window.xml_nodeTextByName) xml_nodeTextByName = function(node_name, parentElem, index) {
    if (index == undefined) index = 0;
    return xml_nodeText(xml_childByName(node_name, parentElem, index));
  };

if (! window.xml_createNode) xml_createNode = function(node_name, node_text, node_attr) {
    if (node_text == undefined) node_text = false;
    if (node_attr == undefined) node_attr = false;
    var nodeObj = document.createElement(node_name);
    if (node_text) nodeObj.appendChild(document.createTextNode( node_text ));
    if (node_attr) for (var i in node_attr) nodeObj.setAttribute(i, node_attr[i]);
    return nodeObj;
  };

if (! window.addStyleSheet) addStyleSheet = function(href,encoding) {
    if (encoding == undefined) encoding = 'utf-8';
    document.getElementsByTagName('head')[0].appendChild( xml_createNode('link',false,{'href':href,'charset':encoding,'type':'text/css','rel':'stylesheet'}) )
  };

function lastModified() { return document.lastModified }

if (! window.BrowserSniffer) BrowserSniffer = function() {
    this.agt=navigator.userAgent.toLowerCase();
    
    // *** BROWSER VERSION ***
    // Note: On IE5, these return 4, so use this.is_ie5up to detect IE5.
    this.is_major = parseInt(navigator.appVersion);
    this.is_minor = parseFloat(navigator.appVersion);
    
    // Note: Opera and WebTV spoof Navigator.  We do strict client detection.
    // If you want to allow spoofing, take out the tests for opera and webtv.
    this.is_nav  = ((this.agt.indexOf('mozilla')!=-1) && (this.agt.indexOf('spoofer')==-1)
                && (this.agt.indexOf('compatible') == -1) && (this.agt.indexOf('opera')==-1)
                && (this.agt.indexOf('webtv')==-1) && (this.agt.indexOf('hotjava')==-1));
    this.is_nav2 = (this.is_nav && (this.is_major == 2));
    this.is_nav3 = (this.is_nav && (this.is_major == 3));
    this.is_nav4 = (this.is_nav && (this.is_major == 4));
    this.is_nav4up = (this.is_nav && (this.is_major >= 4));
    this.is_navonly      = (this.is_nav && ((this.agt.indexOf(";nav") != -1) ||
                          (this.agt.indexOf("; nav") != -1)) );
    this.is_nav6 = (this.is_nav && (this.is_major == 5));
    this.is_nav6up = (this.is_nav && (this.is_major >= 5));
    this.is_gecko = (this.agt.indexOf('gecko') != -1);
    
    
    this.is_ie     = ((this.agt.indexOf("msie") != -1) && (this.agt.indexOf("opera") == -1));
    this.is_ie3    = (this.is_ie && (this.is_major < 4));
    this.is_ie4    = (this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 4")!=-1) );
    this.is_ie4up  = (this.is_ie && (this.is_major >= 4));
    this.is_ie5    = (this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 5.0")!=-1) );
    this.is_ie5_5  = (this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 5.5") !=-1));
    this.is_ie5up  = (this.is_ie && !this.is_ie3 && !this.is_ie4);
    this.is_ie5_5up =(this.is_ie && !this.is_ie3 && !this.is_ie4 && !this.is_ie5);
    this.is_ie6    = (this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 6.")!=-1) );
    this.is_ie6up  = (this.is_ie && !this.is_ie3 && !this.is_ie4 && !this.is_ie5 && !this.is_ie5_5);
    
    // KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
    // or if this is the first browser window opened.  Thus the
    // variables this.is_aol, this.is_aol3, and this.is_aol4 aren't 100% reliable.
    this.is_aol   = (this.agt.indexOf("aol") != -1);
    this.is_aol3  = (this.is_aol && this.is_ie3);
    this.is_aol4  = (this.is_aol && this.is_ie4);
    this.is_aol5  = (this.agt.indexOf("aol 5") != -1);
    this.is_aol6  = (this.agt.indexOf("aol 6") != -1);
    
    this.is_opera = (this.agt.indexOf("opera") != -1);
    this.is_opera2 = (this.agt.indexOf("opera 2") != -1 || this.agt.indexOf("opera/2") != -1);
    this.is_opera3 = (this.agt.indexOf("opera 3") != -1 || this.agt.indexOf("opera/3") != -1);
    this.is_opera4 = (this.agt.indexOf("opera 4") != -1 || this.agt.indexOf("opera/4") != -1);
    this.is_opera5 = (this.agt.indexOf("opera 5") != -1 || this.agt.indexOf("opera/5") != -1);
    this.is_opera5up = (this.is_opera && !this.is_opera2 && !this.is_opera3 && !this.is_opera4);
    
    this.is_webtv = (this.agt.indexOf("webtv") != -1); 
    
    this.is_TVNavigator = ((this.agt.indexOf("navio") != -1) || (this.agt.indexOf("navio_aoltv") != -1)); 
    this.is_AOLTV = this.is_TVNavigator;
    
    this.is_hotjava = (this.agt.indexOf("hotjava") != -1);
    this.is_hotjava3 = (this.is_hotjava && (this.is_major == 3));
    this.is_hotjava3up = (this.is_hotjava && (this.is_major >= 3));
    
    // *** JAVASCRIPT VERSION CHECK ***
    this.is_js;
    if (this.is_nav2 || this.is_ie3) this.is_js = 1.0;
    else if (this.is_nav3) this.is_js = 1.1;
    else if (this.is_opera5up) this.is_js = 1.3;
    else if (this.is_opera) this.is_js = 1.1;
    else if ((this.is_nav4 && (this.is_minor <= 4.05)) || this.is_ie4) this.is_js = 1.2;
    else if ((this.is_nav4 && (this.is_minor > 4.05)) || this.is_ie5) this.is_js = 1.3;
    else if (this.is_hotjava3up) this.is_js = 1.4;
    else if (this.is_nav6 || this.is_gecko) this.is_js = 1.5;
    // NOTE: In the future, update this code when newer versions of JS
    // are released. For now, we try to provide some upward compatibility
    // so that future versions of Nav and IE will show they are at
    // *least* JS 1.x capable. Always check for JS version compatibility
    // with > or >=.
    else if (this.is_nav6up) this.is_js = 1.5;
    // NOTE: ie5up on mac is 1.4
    else if (this.is_ie5up) this.is_js = 1.3
    
    // HACK: no idea for other browsers; always check for JS version with > or >=
    else this.is_js = 0.0;
    
    // *** PLATFORM ***
    this.is_win   = ( (this.agt.indexOf("win")!=-1) || (this.agt.indexOf("16bit")!=-1) );
    // NOTE: On Opera 3.0, the userAgent string includes "Windows 95/NT4" on all
    //        Win32, so you can't distinguish between Win95 and WinNT.
    this.is_win95 = ((this.agt.indexOf("win95")!=-1) || (this.agt.indexOf("windows 95")!=-1));
    
    // is this a 16 bit compiled version?
    this.is_win16 = ((this.agt.indexOf("win16")!=-1) || 
               (this.agt.indexOf("16bit")!=-1) || (this.agt.indexOf("windows 3.1")!=-1) || 
               (this.agt.indexOf("windows 16-bit")!=-1) );  
    
    this.is_win31 = ((this.agt.indexOf("windows 3.1")!=-1) || (this.agt.indexOf("win16")!=-1) ||
                    (this.agt.indexOf("windows 16-bit")!=-1));
    
    this.is_winme = ((this.agt.indexOf("win 9x 4.90")!=-1));
    this.is_win2k = ((this.agt.indexOf("windows nt 5.0")!=-1));
    
    // NOTE: Reliable detection of Win98 may not be possible. It appears that:
    //       - On Nav 4.x and before you'll get plain "Windows" in userAgent.
    //       - On Mercury client, the 32-bit version will return "Win98", but
    //         the 16-bit version running on Win98 will still return "Win95".
    this.is_win98 = ((this.agt.indexOf("win98")!=-1) || (this.agt.indexOf("windows 98")!=-1));
    this.is_winnt = ((this.agt.indexOf("winnt")!=-1) || (this.agt.indexOf("windows nt")!=-1));
    this.is_win32 = (this.is_win95 || this.is_winnt || this.is_win98 || 
                    ((this.is_major >= 4) && (navigator.platform == "Win32")) ||
                    (this.agt.indexOf("win32")!=-1) || (this.agt.indexOf("32bit")!=-1));
    
    this.is_os2   = ((this.agt.indexOf("os/2")!=-1) || 
                    (navigator.appVersion.indexOf("OS/2")!=-1) ||   
                    (this.agt.indexOf("ibm-webexplorer")!=-1));
    
    this.is_mac    = (this.agt.indexOf("mac")!=-1);
    // hack ie5 js version for mac
    if (this.is_mac && this.is_ie5up) this.is_js = 1.4;
    this.is_mac68k = (this.is_mac && ((this.agt.indexOf("68k")!=-1) || 
                               (this.agt.indexOf("68000")!=-1)));
    this.is_macppc = (this.is_mac && ((this.agt.indexOf("ppc")!=-1) || 
                                (this.agt.indexOf("powerpc")!=-1)));
    
    this.is_sun   = (this.agt.indexOf("sunos")!=-1);
    this.is_sun4  = (this.agt.indexOf("sunos 4")!=-1);
    this.is_sun5  = (this.agt.indexOf("sunos 5")!=-1);
    this.is_suni86= (this.is_sun && (this.agt.indexOf("i86")!=-1));
    this.is_irix  = (this.agt.indexOf("irix") !=-1);    // SGI
    this.is_irix5 = (this.agt.indexOf("irix 5") !=-1);
    this.is_irix6 = ((this.agt.indexOf("irix 6") !=-1) || (this.agt.indexOf("irix6") !=-1));
    this.is_hpux  = (this.agt.indexOf("hp-ux")!=-1);
    this.is_hpux9 = (this.is_hpux && (this.agt.indexOf("09.")!=-1));
    this.is_hpux10= (this.is_hpux && (this.agt.indexOf("10.")!=-1));
    this.is_aix   = (this.agt.indexOf("aix") !=-1);      // IBM
    this.is_aix1  = (this.agt.indexOf("aix 1") !=-1);    
    this.is_aix2  = (this.agt.indexOf("aix 2") !=-1);    
    this.is_aix3  = (this.agt.indexOf("aix 3") !=-1);    
    this.is_aix4  = (this.agt.indexOf("aix 4") !=-1);    
    this.is_linux = (this.agt.indexOf("inux")!=-1);
    this.is_sco   = (this.agt.indexOf("sco")!=-1) || (this.agt.indexOf("unix_sv")!=-1);
    this.is_unixware = (this.agt.indexOf("unix_system_v")!=-1); 
    this.is_mpras    = (this.agt.indexOf("ncr")!=-1); 
    this.is_reliant  = (this.agt.indexOf("reliantunix")!=-1);
    this.is_dec   = ((this.agt.indexOf("dec")!=-1) || (this.agt.indexOf("osf1")!=-1) || 
           (this.agt.indexOf("dec_alpha")!=-1) || (this.agt.indexOf("alphaserver")!=-1) || 
           (this.agt.indexOf("ultrix")!=-1) || (this.agt.indexOf("alphastation")!=-1)); 
    this.is_sinix = (this.agt.indexOf("sinix")!=-1);
    this.is_freebsd = (this.agt.indexOf("freebsd")!=-1);
    this.is_bsd = (this.agt.indexOf("bsd")!=-1);
    this.is_unix  = ((this.agt.indexOf("x11")!=-1) || this.is_sun || this.is_irix || this.is_hpux || 
                 this.is_sco ||this.is_unixware || this.is_mpras || this.is_reliant || 
                 this.is_dec || this.is_sinix || this.is_aix || this.is_linux || this.is_bsd || this.is_freebsd);
    
    this.is_vms   = ((this.agt.indexOf("vax")!=-1) || (this.agt.indexOf("openvms")!=-1));
    
    return this;
  };

if (! (params.stylesheet)) {
 if (params.isPrint) params.stylesheet = 'print.css';
 else if (params.lang == 'ar') params.stylesheet = 'sitestyle_ar.css';
 else if (params.lang == 'zh') params.stylesheet = 'sitestyle_zh.css';
 else params.stylesheet = 'sitestyle.css';
}

document.writeln('<link rel="stylesheet" type="text/css" href="'+ params.cssDir + params.stylesheet +'">');
document.writeln('<link rel="stylesheet" type="text/css" href="'+ params.cssDir + 'tstyle.css">');

var bd = new BrowserSniffer();

document.writeln('<link rel="stylesheet" type="text/css" href="'+ params.cssDir +'topsearch_'+( bd.is_nav && ! bd.is_nav6up ? 'low' : 'high' )+'.css">');