wfront = {
  tckbackstring: function(_strers)
  {
    var tbool = false;
    var tstrers = _strers;
    if (tstrers.substr(0, 11) == '<!--jtbc-->') tbool = true;
    return tbool;
  },
  tckrbackstring: function(_strers)
  {
    var tstrers = _strers;
    if (tstrers.substr(0, 11) == '<!--jtbc-->') tstrers = tstrers.substr(11);
    return tstrers;
  },
  tckinnerhtmldisplay: function(_strid1, _strid2)
  {
    var tstrid1 = _strid1;
    var tstrid2 = _strid2;
    var tobj1 = $i(tstrid1);
    var tobj2 = $i(tstrid2);
    if (tobj1 && tobj2)
    {
      if (tobj1.innerhtml != '') tobj2.style.display = '';
    };
  },
  tloadajaxsubmit: function(_form, _obj)
  {
    var tobj = _obj;
    var tform = _form;
    var tformobj = $i(tform);
    if (tformobj)
    {
      var tformbeobj = $i(tform + 'beforeaction');
      if (tformbeobj) eval(tformbeobj.value);
      if (wfront.validator.tcheck(tformobj))
      {
        tobj.disabled = true;
        var taction = tformobj.action;
        var tstrform = cls.form.tgetvalues(tformobj);
        cls.tiposts(taction, tstrform, wfront.tloadajaxsubmits, tobj);
      };
    };
  },
  tloadajaxsubmits: function(_strers, _obj)
  {
    var tobj = _obj;
    var tstrers = _strers;
    if (tobj) tobj.disabled = false;
    if (wfront.tckbackstring(tstrers)) alert(wfront.tckrbackstring(tstrers));
  },
  tloadbarpercent: function(_name, _value, _id)
  {
    var tid = _id;
    var tname = _name;
    var tvalue = _value;
    var ttotalnumber = 0;
    var tobjs = document.getelementsbyname(tname);
    if (tobjs)
    {
      for (ti = 0; ti < tobjs.length; ti ++) ttotalnumber = ttotalnumber + cls.tgetnum(tobjs[ti].value, 0);
    };
    if (ttotalnumber != 0)
    {
      tvalue = cls.tgetnum(tvalue, 0);
      var tcurrentobj = $i(tname + '_' + tid);
      if (tcurrentobj) tcurrentobj.style.width = (tvalue / ttotalnumber * 100) + '%';
    };
  },
  tloadimgsrcs: function(_obj, _width, _height)
  {
    var tobj = _obj;
    var twidth = _width;
    var theight = _height;
    var timage = new image();
    timage.src = tobj.getattribute('srcs');
    if (timage.width > 0) wfront.tloadimgsrcst(tobj, twidth, theight, timage.width, timage.height);
    else timage.onload = function() {wfront.tloadimgsrcst(tobj, twidth, theight, timage.width, timage.height);};
  },
  tloadimgsrcst: function(_obj, _width, _height, _nwidth, _nheight)
  {
    var tobj = _obj;
    var twidth = _width;
    var theight = _height;
    var tnwidth = _nwidth;
    var tnheight = _nheight;
    var tnewwidth = 0;
    var tnewheight = 0;
    if (tnwidth > twidth && tnheight > theight)
    {
      if ((tnwidth / twidth) > (tnheight / theight)) tnewwidth = twidth;
      else tnewheight = theight;
    }
    else
    {
      if (tnwidth > twidth && tnheight <= theight) tnewwidth = twidth;
      if (tnwidth <= twidth && tnheight > theight) tnewheight = theight;
    };
    tobj.onload = function() {};
    tobj.src = tobj.getattribute('srcs');
    if (tnewwidth != 0) tobj.width = tnewwidth;
    if (tnewheight != 0) tobj.height = tnewheight;
  }
};

wfront.img = {
  tinsertselects: function(_name, _value)
  {
    var tname = _name;
    var tvalue = _value;
    var tobj = $i(tname);
    if (tobj)
    {
      if (tobj.getattribute('inserted') != 'yes')
      {
        var tary = tvalue.split('|');
        for (ti = 0; ti < tary.length; ti ++)
        {
          if (tary[ti]) cls.selects.tadd(tname, tary[ti], tary[ti]);
        };
        tobj.setattribute('inserted', 'yes');
      };
    };
  }
};

wfront.loading = {
  tloader: function(_strers)
  {
    var tstrers = _strers;
    if (tstrers)
    {
      var thtml = '<div class="jloader"><div>' + tstrers + '</div></div>';
      cls.mask.tshow(thtml);
      cls.mask.tsetstyle();
    };
  },
  tclose: function()
  {
    cls.mask.tclose();
  }
};

wfront.validator = {
  trequire: /.+/,
  temail: /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/,
  tnumber: /^\d+$/,
  tenglish: /^[a-za-z]+$/,
  tchinese:  /^[\u0391-\uffe5]+$/,
  tcheck: function(_obj)
  {
    var tobj = _obj;
    var tbool = true;
    var tfocusobj = null;
    var trmessagestring = '';
    if (tobj)
    {
      var tvobj, tvalue;
      var trtypestr, trequirestr, trmessage;
      var tinputobj = tobj.getelementsbytagname('input');
      for(ti = 0; ti < tinputobj.length; ti++)
      {
        tvobj = tinputobj[ti];
        tvalue = tvobj.value;
        trtypestr = tvobj.getattribute('rtype');
        trequirestr = tvobj.getattribute('require');
        trmessage = tvobj.getattribute('rmessage');
        if (trtypestr)
        {
          if (trequirestr != '0' || (trequirestr == '0' && tvalue))
          {
            if (!this['t' + trtypestr].test(tvalue))
            {
              if (!tfocusobj) tfocusobj = tvobj;
              trmessagestring += trmessage + '\n';
              tbool = false;
            };
          };
        };
      };
    };
    if (tfocusobj) tfocusobj.focus();
    if (trmessagestring) alert(trmessagestring);
    return tbool;
  }
};