var TITEMS = [ 
 ["首页", "source/index.html", "11"],
 ["Polyboost简介", "source/intro.html", "11"],
 ["Polyboost功能概述", null, "1",
  ["Polyboost功能概述", "source/polyboost01.html", "11"],
  ["Selection|选择模块", "source/polyboost02.html", "11"],
  ["Modeling|建模模块", "source/polyboost03.html", "11"],
  ["PatternMaker|图案模块", "source/polyboost04.html", "11"],
  ["SelectionMixer|选择混合器模块", "source/polyboost05.html", "11"],
  ["TextureTools|纹理模块", "source/polyboost06.html", "11"],
  ["Tools|工具模块", "source/polyboost07.html", "11"],
  ["UVW/Skin|UV模块", "source/polyboost08.html", "11"],
  ["Transform|变换模块", "source/polyboost09.html", "11"],
  ["Other|其它", "source/polyboost10.html", "11"]
 ],
 ["Polyboost功能详解", null, "1",
  ["Polyboost启动方式", "source/polyboost11.html", "11"],
  ["Selection - Tops", "source/polyboost14.html", "11"],
  ["Selection - HardEdges", "source/polyboost15.html", "11"],
  ["Selection - Select by ID(ID)", "source/polyboost16.html", "11"],
  ["UVW Skin Cloth - UVW Tweak", "source/polyboost17.html", "11"],
  ["UVW Skin Cloth - Unwarp UVW - Stitch", "source/polyboost18.html", "11"],
  ["UVW Skin Cloth - Unwarp UVW - UVLineup / UVSapce", "source/polyboost19.html", "11"],
  ["Modeling - PolyDraw - Other Tools", "source/polyboost20.html", "11"],
  ["对“编辑多边形修改器”的支持", "source/polyboost12.html", "11"],
  ["本手册用词说明", "source/polyboost13.html", "11"]
 ]
];


var FITEMS = arr_flatten(TITEMS);

function arr_flatten (x) {
   var y = []; if (x == null) return y;
   for (var i=0; i<x.length; i++) {
      if (typeof(x[i]) == "object") {
         var flat = arr_flatten(x[i]);
         for (var j=0; j<flat.length; j++)
             y[y.length]=flat[j];
      } else {
         if ((i%3==0))
          y[y.length]=x[i+1];
      }
   }
   return y;
}