JS to implement HTML table sorting function _javascript skill

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HTML Code:

<table cellpadding= "0" id= "table" > <tr class= "Top" > <td>click me</td> <td>c
      Lick me</td> <td>click me</td> <td>click me</td> </tr> <tr> <td> <span id= "Bfn_la_bac.usa" >15.43</span> </td> <td class= "Red" >
      700</td> <td>1.220</td> <td class= "Red" > "</td> </tr> <tr> <td> <span id= "Bfn_la_c.usa" >7.05</span> </td> <td class= "Red" >4< /td> <td>3,000</td> <td class= "Red" > Bing </td> </tr> <tr> ;td> <span id= "Bfn_la_jpm.usa" >30.62</span> </td> <td class= "Red" >30</td > <td>2,558,800</td> <td class= "Red" > and </td> </tr> <tr> &L T;td> <span id= "Bfn_la_axp.usa" >22.30</span> </td> <td class= "Red" >5</td> &LT;TD&GT;6&L t;/td> <td class= "Red" > Blind </td> </tr> <tr> <td> <span id= "BF N_la_mrk.usa ">26.31</span> </td> <td class=" Red ">0.6</td> <td>5</td&
      Gt &LT;TD class= "Red" >-</td> </tr> <tr> <td> <span id= "Bfn_la_pg.usa" > 63.16</span> </td> <td class= "Red" >7</td> <td>4</td> &LT;TD cl
 ass= "Red" > Sub </td> </tr> </table>

javascirpt code:

var tablesort = function () {this.initialize.apply (this,arguments); 
    } Tablesort.prototype = {initialize:function (tableid,clickrow,startrow,endrow,classup,classdown,selectclass) { This. 
    Table = document.getElementById (tableId); This.rows = this. table.rows;//all lines this. 
    tags = this.rows[clickrow-1].cells;//label td this.up = Classup; 
    This.down = Classdown; 
    This.startrow = StartRow; 
    This.selectclass = Selectclass; 
    This.endrow = (Endrow = = 999? this.rows.length:endRow); This. 
  T2arr = This._td2array ();//The Two-dimensional array this.setshow () of all affected TD; },//Set Tab Toggle Setshow:function () {var defaultclass = this. 
    Tags[0].classname; For (var Tag, i=0; Tag = this. 
      tags[i];i++) {tag.index = i; 
    AddEventListener (Tag, ' click ', Bind (Tag,statu)); 
    } var _this =this; 
    var turn = 0; function Statu () {for (Var i=0;i<_this). tags.length;i++) {_this. 
      Tags[i].classname = Defaultclass; 
 } if (turn==0) {       AddClass (This,_this.down) _this.startarray (0,this.index); 
      Turn=1; 
        }else{addclass (this,_this.up) _this.startarray (1,this.index); 
      turn=0; }},//Set checked column style colclassset:function (NUM,CLA) {//Get associated TD for (Var i= (this.startrow-1);i< (this 
      . Endrow); i++) {for (Var n=0;n<this.rows[i].cells.length;n++) {removeclass (THIS.ROWS[I].CELLS[N],CLA); 
    } addclass (THIS.ROWS[I].CELLS[NUM],CLA); },///start sorting num According to the sort Aord order startarray:function (aord,num) {var aftersort = This.sortmethod (this. T2arr,aord,num);//sorted two-dimensional array to the Sort method to This.array2td (num,aftersort);//output},//Convert affected rows and columns to two-dimensional arrays _td2array:function 
      () {var arr=[]; 
        For (Var i= (this.startrow-1),l=0;i< (this.endrow); i++,l++) {arr[l]=[]; 
        for (Var n=0;n<this.rows[i].cells.length;n++) {Arr[l].push (this.rows[i].cells[n].innerhtml); } return Arr 
    InnerHTML array2td:function (Num,arr) {This.colclassset (num,this.selectclass) to output the corresponding rows and columns according to the sorted two-dimensional array; For (Var i= (this.startrow-1),l=0;i< (This.endrow), i++,l++) {for (Var n=0;n<this). 
      tags.length;n++) {this.rows[i].cells[n].innerhtml = Arr[l][n];  
      }},//pass in a two-dimensional array, sorted according to the W entry in the subkey of the two-dimensional array, and then return the sorted two-dimensional array sortmethod:function (ARR,AORD,W) {Arr.sort (function (a,b) { 
      x = killhtml (a[w]); 
      y = killhtml (b[w]); 
      x = X.replace (/,/g, ""); 
      y = y.replace (/,/g, '); 
      Switch (isNaN (x)) {Case False:return number (x)-Number (Y); 
      Break 
      Case True:return X.localecompare (y); 
      Break 
    } 
    }); 
    arr = Aord==0?arr:arr.reverse (); 
  return arr; }/*-----------------------------------/function AddEventListener (O,TYPE,FN) {if (o.attachevent) {O.attacheve
  NT (' on ' +type,fn);
  }else if (o.addeventlistener) {O.addeventlistener (type,fn,false);
    }else{o[' on ' +type] = fn; 
  The function hasclass (element, className) {var reg = new RegExp (' (\s|^) ' +classname+ ' (\s|$) '); 
Return Element.className.match (REG); function addclass (element, ClassName) {if (!this.hasclass (element, ClassName)) {element.classname = "" +clas 
  sname; } function Removeclass (element, ClassName) {if (Hasclass (element, className)) {var reg = new RegExp (' (\s|^) ') 
    +classname+ ' (\s|$) '); 
  Element.classname = Element.className.replace (Reg, '); 
  The var Bind = function (object, fun) {return function () {return Fun.apply (object, arguments); 
}///Remove all HTML tag function killhtml (str) {return str.replace (/<[^>]+>/g, ""); //------------------------------------------------//tableid The first few lines are the label rows, sorted from the first few lines, the first lines ending the sort (999 for the last) ascending label style, descending label style Checked column style//note the label line class should be consistent with var Ex1 = new Tablesort (' table ', 1,2,999, ' Up ', ' Down ', ' HOV ');

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