var SORT_COLUMN_INDEX;
var boxwidth=0;
var boxheight=0;
var maxVal;
var minVal;
var maxValLngth;
var maxValInt;
var maxNameLngth;
var legArr;
var initboxx;
var initboxy;
var cellwidth;
var allborder;
var leftmargin;
var topmargin;
var graphheight;
var graphwidth;
var longestVal;
var yAxArr = new Array();
var txt;
var valueRange;
var idxlvl=0;

function rowHiLite(ele) {
  if(ele.className.substr(0,3)=="hi_"){
    ele.className = ele.className.substr(3,ele.className.length-3)
  } else {
    ele.className = "hi_"+ele.className;
  }
}

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 < l; 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 scrollHeads(tblId){
  if(document.getElementById(tblId+'sDiv')) {
    document.getElementById(tblId+"_hds").style.display="none";
    if(document.getElementById(tblId+'sDiv').scrollTop > 15) {
      var tblSH = document.getElementById(tblId);
      lftPos = tblSH.offsetLeft;
      for (col=0; col<tblSH.rows[0].cells.length; col++) {
        if ((tblSH.rows[0].cells[col].innerText!="")||(tblSH.rows[0].cells[col].className=="rl")) {
          if (col==0) {
            if(!IE) {
              colWdth=tblSH.rows[0].cells[col].offsetWidth-10;
            } else {
              colWdth=tblSH.rows[0].cells[col].offsetWidth-9;
            }
          } else {
            colWdth=tblSH.rows[0].cells[col].offsetWidth-11;
          }
          if(document.getElementById(tblId+"_hds_col_"+col)) {
            document.getElementById(tblId+"_hds_col_"+col).style.width=colWdth;
          }
        }
      }
      var tblPosArr = findCoords(tblSH)     
      if(!IE) {
        document.getElementById(tblId+"_hds").style.left=lftPos;
      } else {
        document.getElementById(tblId+"_hds").style.top=document.getElementById(tblId+'sDiv').scrollTop
      }
      document.getElementById(tblId+"_hds").style.display="inline";
    }
  }
}


function ts_resortTable(lnk,srttype,gpName) {
  // get the span
  var span;
  for (var ci=0;ci<lnk.childNodes.length;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 = td.cellIndex;
  document.getElementById(gpName+'_LCS').value = column;
  var table = getParent(td,'TABLE');
  
  // Work out a type for the column
  if (table.rows.length <= 1) return;
  for (row=0; row<table.rows.length; row++) {
    if (table.rows[row].className == "total") {
      if (row != (table.rows.length-1)) {
        table.deleteRow(row);
        row=row-1;
      }
    }
  }
  var itm = ts_getInnerText(table.rows[1].cells[column]);
  sortfn = ts_sort_caseinsensitive;
  if (srttype=='dat') sortfn = ts_sort_date;
  if (srttype=='num') sortfn = ts_sort_numeric;
  SORT_COLUMN_INDEX = column;
  var firstRow = new Array();
  var newRows = new Array();
  for (i=0;i<table.rows[0].length;i++) { firstRow[i] = table.rows[0][i]; }
  for (j=1;j<table.rows.length;j++) {
    newRows[j-1] = table.rows[j];
  }
  newRows.sort(sortfn);
  if (!span.getAttribute("sortdir")) {
    if (srttype=='txt') {
      span.setAttribute('sortdir','up');
    } else {
      span.setAttribute('sortdir','down');
    }
  }
  if (span.getAttribute("sortdir") == 'up') {
    ARROW = '&nbsp;&darr;';
    span.setAttribute('sortdir','down');
    document.getElementById(gpName+'_LOS').value = 'ASC';
  } else {
    ARROW = '&nbsp;&uarr;';
    newRows.reverse();
    span.setAttribute('sortdir','up');
    document.getElementById(gpName+'_LOS').value = 'DESC';
  }
  // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
  // don't do total rows
  for (i=0;i<newRows.length;i++) {
    if (!newRows[i].className || (newRows[i].className && (newRows[i].className.indexOf('total') == -1))) {
      if (i % 2 == 0) {
        rc = 'evens';
      } else {
        rc = 'odds';
      }
      newRows[i].className = rc;
      table.tBodies[0].appendChild(newRows[i]);
    }
  }
  
  // do total rows only
  for (i=0;i<newRows.length;i++) {
    if (newRows[i].className && (newRows[i].className.indexOf('total') != -1)) {
      table.tBodies[0].appendChild(newRows[i]);
    }
  }
  
  // Delete any other arrows there may be showing
  var allspans = document.getElementsByTagName("span");
  for (var ci=0;ci<allspans.length;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]);
  dt1 = aa.substr(0,4)+aa.substr(5,2)+aa.substr(8,2);
  dt2 = bb.substr(0,4)+bb.substr(5,2)+bb.substr(8,2);
/*
  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) < 50) { yr = '20'+yr; } else { yr = '19'+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) < 50) { yr = '20'+yr; } else { yr = '19'+yr; }
    dt2 = yr+bb.substr(3,2)+bb.substr(0,2);
  }
*/
  if (dt1==dt2) return 0;
  if (dt1<dt2) return -1;
  return 1;
}

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<bb) return -1;
  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");
  }
}