/* Path relative to book dir! */
/* Default Images */

img_first=new Image();
img_first.src = "../../images/first_a.gif";

img_chapPrev=new Image();
img_chapPrev.src = "../../images/chapPrev_a.gif";

img_pagePrev=new Image();
img_pagePrev.src = "../../images/pagePrev_a.gif";

img_chapNext=new Image();
img_chapNext.src = "../../images/chapNext_a.gif";

img_pageNext=new Image();
img_pageNext.src = "../../images/pageNext_a.gif";

img_last=new Image();
img_last.src = "../../images/last_a.gif";

/* On Mouse over */
img_firstOver=new Image();
img_firstOver.src = "../../images/first_b.gif";

img_chapPrevOver=new Image();
img_chapPrevOver.src = "../../images/chapPrev_b.gif";

img_pagePrevOver=new Image();
img_pagePrevOver.src = "../../images/pagePrev_b.gif";

img_chapNextOver=new Image();
img_chapNextOver.src = "../../images/chapNext_b.gif";

img_pageNextOver=new Image();
img_pageNextOver.src = "../../images/pageNext_b.gif";

img_lastOver=new Image();
img_lastOver.src = "../../images/last_b.gif";

function swapImg(img,name) {
    document[name].src = eval(img + ".src");
}


/* Browser detection stuff */

var str_atLeastMSIE = "5.5";
var i_atLeastMSIE = parseFloat( str_atLeastMSIE );
function browserName() {
  var bName = navigator.appName;
  // Opera first, because of its oddity to disguise
  if ( (navigator.userAgent.indexOf("Opera")!=-1) ||
       (navigator.userAgent.indexOf("Opera/")!=-1))
    return "opera";
  // Detect IE5.5+
  if( navigator.appVersion.indexOf("MSIE")!=-1 ){
    return "msie";
    /*
    var temp = navigator.appVersion.split("MSIE");
    var version = 0;
    version = parseFloat( temp[1] );
    if( version >= i_atLeastMSIE ) //NON IE browser will return 0
      alert("You're using IE5.5+")
    */
  }
  // Netscape
  if( bName == "Netscape")
    return "netscape";
  return "default";
}
function browserVersion() {
  if( navigator.appVersion.indexOf("MSIE") != -1 ){
    var temp = navigator.appVersion.split("MSIE");
    return parseFloat( temp[1] );
  }
  return parseFloat( navigator.appVersion );
}
function writeFailure() {
  var iexplDownload = "http://www.microsoft.com/windows/ie/default.asp";
  var fontDownload = "./font/Borjw___.ttf";
  document.write("<h2>We apologize for being unable to provide you \
                  the Inner Mongolian New Testament (IMNT) due to the \
                  following problems.</h2>");
  document.write("<h3>Browser:</h3>");
  document.write("<p id=\"browserDetection\">");
  document.write("The IMNT requires to have ");
  document.write("<b>MS Internet Explorer " + str_atLeastMSIE);
  document.write("</b> (or a later version) installed.");
  document.write("Until now, only this browser is able to properly display a \
                  text-based vertical script.");
  document.write("Your browser is:<br />");
  //document.write("<b>CodeName: " + navigator.appCodeName + "</b><br />");
  //document.write("<b>plattform: " + navigator.platform + "</b><br />");
  //document.write("<b>Name: " + navigator.appName + "</b><br />");
  //document.write("<b>Version: " + navigator.appVersion + "</b><br />");
  document.write("<b>" + navigator.userAgent + "</b><br />");
  //document.write("<b>Version: " + browserVersion() + "</b><br />");
  document.write("The browser does not support text-based vertical script.<br /><br />");
  document.write("Please download and install <a href=\"" + iexplDownload + "\">\
                  Internet Explorer</a> ");
  document.write("and please use our <a href='./sysreqtest.html'>Testpage</a>\
                  to ensure your system meets the requirements for IMNT.");
  document.write("</p>");
}