////////////////////////////////////////////////////////////
//    Modification de la taille du texte
////////////////////////////////////////////////////////////


function ts( trgt,inc )
{
  if (!document.getElementById) return
  var d = document,cEl = null,sz = startSz,i,j,cTags;

  sz += inc;
  if ( sz < 0 ) sz = 0;
  if ( sz > 6 ) sz = 6;
  startSz = sz;

  if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ];

  cEl.style.fontSize = szs[ sz ];

  for ( i = 0 ; i < tgs.length ; i++ )
  {
    cTags = cEl.getElementsByTagName( tgs[ i ] );
    for ( j = 0 ; j < cTags.length ; j++ ) cTags[ j ].style.fontSize = szs[ sz ];
  }
}


////////////////////////////////////////////////////////////
//    description videos playliste youtube
////////////////////////////////////////////////////////////

var ns4=document.layers
var ie4=document.all
var ns6=document.getElementById&&!document.all

function changer_description(balise, description)
{
  if (ns4)
  {
    document.eval(balise).document.write(description);
    document.eval(balise).document.close();
  }
  else if (ns6)
  {
    document.getElementById(balise).innerHTML = description;
  }
  else if (ie4)
  {
    eval(balise).innerHTML = description;
  }
}



////////////////////////////////////////////////////////////
//    scrolling du flash info
////////////////////////////////////////////////////////////

function scrollObject(main, width, height, direct, pause, speed)
{
  var self = this;
  this.main = main;
  this.width = width;
  this.height = height;
  this.direct = direct;
  this.pause = pause;
  this.speed = Math.max(1.001, Math.min((direct == "up" || direct == "down") ? height : width, speed));
  this.slope = (direct == "up" || direct == "left") ? 1 : -1;
  this.prev = this.offset = 0;
  this.curr = 1;
  this.mouse = false;
  this.scroll = function(){
    this.main = document.getElementById(this.main);
    this.main.style.overflow = "hidden";
    this.main.style.position = "relative";
    this.main.style.width = this.width + "px";
    this.main.style.height = this.height + "px";
    var b = [], c;
    while (this.main.firstChild) if ((c = this.main.removeChild(this.main.firstChild)).nodeName == "DIV") b.push(c);
    for (var x = 0; x < b.length; x++) {
      var table = document.createElement('table');
          table.cellPadding = table.cellSpacing = table.border = "0";
          table.style.position = "absolute";
          table.style.left = table.style.top = "0px";
          table.style.width = table.style.height = "100%";
          table.style.overflow = table.style.visibility = "hidden";
        var tbody = document.createElement('tbody');
          var tr = document.createElement('tr');
            var td = document.createElement('td');
              while (b[x].firstChild)
                  td.appendChild(b[x].removeChild(b[x].firstChild));
              tr.appendChild(td);
            tbody.appendChild(tr);
          table.appendChild(tbody);
      this.main.appendChild(table);
    } b = c = null;
    if (this.main.childNodes.length > 1) {
      this.main.onmouseover = function() { self.mouse = true; };
      this.main.onmouseout = function() { self.mouse = false; };
      setInterval(function() {
        if (!self.offset && self.scrollLoop()) self.main.childNodes[self.curr].style.visibility = "visible";
      }, this.pause);
    } this.main.childNodes[this.prev].style.visibility = "visible";
  };
  this.scrollLoop = function() {
    if (!this.offset) {
      if (this.mouse) return false;
      this.offset = (this.direct == "up" || this.direct == "down") ? this.height : this.width;
    } else this.offset = Math.floor(this.offset / this.speed);
    if (this.direct == "up" || this.direct == "down") {
      this.main.childNodes[this.curr].style.top = (this.offset * this.slope) + "px";
      this.main.childNodes[this.prev].style.top = ((this.offset - this.height) * this.slope) + "px";
    } else {
      this.main.childNodes[this.curr].style.left = (this.offset * this.slope) + "px";
      this.main.childNodes[this.prev].style.left = ((this.offset - this.width) * this.slope) + "px";
    }
    if (!this.offset) {
      this.main.childNodes[this.prev].style.visibility = "hidden";
      this.prev = this.curr;
      if (++this.curr >= this.main.childNodes.length) this.curr = 0;
    } else setTimeout(function() { self.scrollLoop(); }, 30);
    return true;
  };
  if (window.addEventListener) {
    window.addEventListener('load', function() { self.scroll(); }, false); 
  } else if (window.attachEvent)
    window.attachEvent('onload', function() { self.scroll(); });
}


////////////////////////////////////////////////////////////
//    extenseur de textareas
////////////////////////////////////////////////////////////

function extendarea()
{
  if(!this.rowww)
  {
    this.rowww=this.rows;
  }

  how_many=strCount(this.value,"\n");
  if((how_many+1)>this.rowww)
  {
    this.rows=how_many+1;
  }

  function strCount(txt,c)
  {
    txt2=txt;

    if(txt2.indexOf(c)!=-1)
    {
      txt2=txt2.substr(txt2.indexOf(c)+1);
      return strCount(txt2,c)+1;
    }

    return 0;
  }
}