<script type="text/javascript">     //是否递减排序     var isDescending = true;     /*****************************************     * 要排序的行必须放到<tbody></tbody>标签中     * tableId:排序表格ID     * colNo：排序的列号，即第几列，从0开始     * startRowNo：排序的开始行号，从0开始     * sortLength：要排序的行数，     * type：排序列的类型     */     function sort(tableId, colNo ,startRowNo, sortLength, type)     {         //如果要排序的行数是1或是0，则不对其进行排序操作         if(sortLength<=1){             return;         }         var currTable = document.getElementById(tableId);         var theHeader = currTable.outerHTML.substring(0, currTable.outerHTML.indexOf('<TBODY>')+7)         var theFooter = currTable.outerHTML.substring(currTable.outerHTML.indexOf('</TBODY>')-8);         //这里的行数是去掉表头表头行和表位行的行数         var theRows = new Array(sortLength);         //对表中的数据进行循环         for(i=startRowNo; i<sortLength+startRowNo; i++)         {             theRows[i-startRowNo] = new Array(currTable.rows[i].cells[colNo].innerText.toLowerCase(), currTable.rows[i].outerHTML);         }         if(type.toUpperCase()=='NUMBER')         {             theRows.sort(compareNumber);         }         else if(type.toUpperCase()=='DATE')             theRows.sort(compareDate);         else if(type.toUpperCase()=='STRING')             theRows.sort(compareString);         var tableInfo=''         for(j=0; j<theRows.length; j++)         {             tableInfo+=theRows[j][1];         }         isDescending = !isDescending;         currTable.outerHTML= theHeader + tableInfo +theFooter;         return ;     }     //对数字进行比较     function compareNumber(x, y)     {         //对货币格式的数据进行转化         a = x[0].excludeChars(",").trim();         b = y[0].excludeChars(",").trim();           if(a==""){a=0;}         if(b==""){b=0;}             if(isDescending)             {                 return parseFloat(b) - parseFloat(a);             }             else             {                 return parseFloat(a) - parseFloat(b);             }     }     //对字符串进行比较     function compareString(x, y)     {             if(isDescending)             {                 if(x[0]>y[0]) return -1;                 else if(x[0]<y[0]) return 1;                 else return 0;             }             else             {                 if(x[0]<y[0]) return -1;                 else if(x[0]>y[0]) return 1;                 else return 0;             }     }     //对时间进行比较     function compareDate(x,y){         var arr=x[0].split("-");         var starttime=new Date(arr[0],arr[1],arr[2]);         var starttimes=starttime.getTime();         var arrs=y[0].split("-");         var lktime=new Date(arrs[0],arrs[1],arrs[2]);         var lktimes=lktime.getTime();                  if(isDescending)         {             return lktimes - starttimes;         }         else         {             return starttimes - lktimes;         }     }     //去除字符串中所有指定的字符串     String.prototype.excludeChars = function(chars){          var matching = new RegExp(chars , "g") ;          return this.replace(matching , '') ;     } </script>