sort table
点击标题排序
name
      salary
      extension
      start date
bloggs, fred
      $12000.00
      1353
      18/08/2003
turvey, kevin
      $191200.00
      2342
      02/05/1979
mbogo, arnold
      $32010.12
      2755
      09/08/1998
shakespeare, bill
      $122000.00
      3211
      12/11/1961
shakespeare, hamnet
      $9000
      9005
      01/01/2002
fitz, marvin
      $3300
      5554
      22/05/1995
alpha's blog
复制代码 代码如下:
addevent(window, load, sortables_init);
var sort_column_index;
function sortables_init() {
    // find all tables with class sortable and make them sortable
    if (!document.getelementsbytagname) return;
    tbls = document.getelementsbytagname(table);
    for (ti=0;ti        thistbl = tbls[ti];
        if (((' '+thistbl.classname+' ').indexof(sortable) != -1) && (thistbl.id)) {
            //inittable(thistbl.id);
            ts_makesortable(thistbl);
        }
    }
}
function ts_makesortable(table) {
    if (table.rows && table.rows.length > 0) {
        var firstrow = table.rows[0];
    }
    if (!firstrow) return;
// we have a first row: assume it's the header, and make its contents clickable links
    for (var i=0;i        var cell = firstrow.cells[i];
        var txt = ts_getinnertext(cell);
        cell.innerhtml = '        'onclick=ts_resorttable(this, '+i+');return false;>' +
        txt+'';
    }
}
function ts_getinnertext(el) {
 if (typeof el == string) return el;
 if (typeof el == undefined) { return el };
 if (el.innertext) return el.innertext; //not needed but it is faster
 var str = ;
var cs = el.childnodes;
 var l = cs.length;
 for (var i = 0; i   switch (cs[i].nodetype) {
   case 1: //element_node
    str += ts_getinnertext(cs[i]);
    break;
   case 3: //text_node
    str += cs[i].nodevalue;
    break;
  }
 }
 return str;
}
function ts_resorttable(lnk,clid) {
    // get the span
    var span;
    for (var ci=0;ci        if (lnk.childnodes[ci].tagname && lnk.childnodes[ci].tagname.tolowercase() == 'span') span = lnk.childnodes[ci];
    }
    var spantext = ts_getinnertext(span);
    var td = lnk.parentnode;
    var column = clid || td.cellindex;
    var table = getparent(td,'table');
// work out a type for the column
    if (table.rows.length     var itm = ts_getinnertext(table.rows[1].cells[column]);
    sortfn = ts_sort_caseinsensitive;
    if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d\d\d$/)) sortfn = ts_sort_date;
    if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d$/)) sortfn = ts_sort_date;
    if (itm.match(/^[$]/)) sortfn = ts_sort_currency;
    if (itm.match(/^[\d\.]+$/)) sortfn = ts_sort_numeric;
    sort_column_index = column;
    var firstrow = new array();
    var newrows = new array();
    for (i=0;i    for (j=1;j
    newrows.sort(sortfn);
    if (span.getattribute(sortdir) == 'down') {
        arrow = '↑';
        newrows.reverse();
        span.setattribute('sortdir','up');
    } else {
        arrow = '↓';
        span.setattribute('sortdir','down');
    }
// we appendchild rows that already exist to the tbody, so it moves them rather than creating new ones
    // don't do sortbottom rows
    for (i=0;i    // do sortbottom rows only
    for (i=0;i
    // delete any other arrows there may be showing
    var allspans = document.getelementsbytagname(span);
    for (var ci=0;ci        if (allspans[ci].classname == 'sortarrow') {
            if (getparent(allspans[ci],table) == getparent(lnk,table)) { // in the same table as us?
                allspans[ci].innerhtml = '';
            }
        }
    }
span.innerhtml = arrow;
}
function getparent(el, ptagname) {
 if (el == null) return null;
 else if (el.nodetype == 1 && el.tagname.tolowercase() == ptagname.tolowercase()) // gecko bug, supposed to be uppercase
  return el;
 else
  return getparent(el.parentnode, ptagname);
}
function ts_sort_date(a,b) {
    // y2k notes: two digit years less than 50 are treated as 20xx, greater than 50 are treated as 19xx
    aa = ts_getinnertext(a.cells[sort_column_index]);
    bb = ts_getinnertext(b.cells[sort_column_index]);
    if (aa.length == 10) {
        dt1 = aa.substr(6,4)+aa.substr(3,2)+aa.substr(0,2);
    } else {
        yr = aa.substr(6,2);
        if (parseint(yr)         dt1 = yr+aa.substr(3,2)+aa.substr(0,2);
    }
    if (bb.length == 10) {
        dt2 = bb.substr(6,4)+bb.substr(3,2)+bb.substr(0,2);
    } else {
        yr = bb.substr(6,2);
        if (parseint(yr)         dt2 = yr+bb.substr(3,2)+bb.substr(0,2);
    }
    if (dt1==dt2) return 0;
    if (dt1    return 1;
}
function ts_sort_currency(a,b) {
    aa = ts_getinnertext(a.cells[sort_column_index]).replace(/[^0-9.]/g,'');
    bb = ts_getinnertext(b.cells[sort_column_index]).replace(/[^0-9.]/g,'');
    return parsefloat(aa) - parsefloat(bb);
}
function ts_sort_numeric(a,b) {
    aa = parsefloat(ts_getinnertext(a.cells[sort_column_index]));
    if (isnan(aa)) aa = 0;
    bb = parsefloat(ts_getinnertext(b.cells[sort_column_index]));
    if (isnan(bb)) bb = 0;
    return aa-bb;
}
function ts_sort_caseinsensitive(a,b) {
    aa = ts_getinnertext(a.cells[sort_column_index]).tolowercase();
    bb = ts_getinnertext(b.cells[sort_column_index]).tolowercase();
    if (aa==bb) return 0;
    if (aa    return 1;
}
function ts_sort_default(a,b) {
    aa = ts_getinnertext(a.cells[sort_column_index]);
    bb = ts_getinnertext(b.cells[sort_column_index]);
    if (aa==bb) return 0;
    if (aa    return 1;
}
function addevent(elm, evtype, fn, usecapture)
// addevent and removeevent
// cross-browser event handling for ie5+,  ns6 and mozilla
// by scott andrew
{
  if (elm.addeventlistener){
    elm.addeventlistener(evtype, fn, usecapture);
    return true;
  } else if (elm.attachevent){
    var r = elm.attachevent(on+evtype, fn);
    return r;
  } else {
    alert(handler could not be removed);
  }
}