function datosServidor() {
};
datosServidor.prototype.iniciar = function() {
  try {
    // Mozilla / Safari
    this._xh = new XMLHttpRequest();
  } catch (e) {
    // Explorer
    var _ieModelos = new Array(
    'MSXML2.XMLHTTP.5.0',
    'MSXML2.XMLHTTP.4.0',
    'MSXML2.XMLHTTP.3.0',
    'MSXML2.XMLHTTP',
    'Microsoft.XMLHTTP'
    );
    var success = false;
    for (var i=0;i < _ieModelos.length && !success; i++) {
      try {
        this._xh = new ActiveXObject(_ieModelos[i]);
        success = true;
      } catch (e) {
        // Implementar manejo de excepciones
      }
    }
    if ( !success ) {
      // Implementar manejo de excepciones, mientras alerta.
      return false;
    }
    return true;
  }
}

datosServidor.prototype.ocupado = function() {
  estadoActual = this._xh.readyState;
  return (estadoActual && (estadoActual < 4));
}

datosServidor.prototype.procesa = function() {
  if (this._xh.readyState == 4 && this._xh.status == 200) {
    this.procesado = true;
  }
}

datosServidor.prototype.enviar = function(urlget,datos) {
  if (!this._xh) {
    this.iniciar();
  }
  if (!this.ocupado()) {
    this._xh.open("GET",urlget,false);
    this._xh.send(datos);
    if (this._xh.readyState == 4 && this._xh.status == 200) {
      return this._xh.responseText;
    }

  }
  return false;
}


// Este es un acceso rapido, le paso la url y el div a cambiar
function _gr(reqseccion,divcont) {
  remotos = new datosServidor;
  nt = remotos.enviar(reqseccion,"");
  document.getElementById(divcont).innerHTML = nt;
}

function rateProduct(rating,imgID)  {
  remotos = new datosServidor;
  nt = remotos.enviar('rate.php?rating='+rating+'&imgId='+imgID);
  rating = (rating * 25) - 8;
  document.getElementById('current-rating').style.width = rating+'px';
  document.getElementById('ratelinks').style.display = 'none';
  document.getElementById('ratingtext').innerHTML = 'Thank you for your vote!';
}

var offsetfromcursorX=12 //Customize x offset of tooltip
var offsetfromcursorY=10 //Customize y offset of tooltip

var offsetdivfrompointerX=10 //Customize x offset of tooltip DIV relative to pointer image
var offsetdivfrompointerY=14 //Customize y offset of tooltip DIV relative to pointer image. Tip: Set it to (height_of_pointer_image-1).

document.write('<div id="dhtmltooltip" ></div>') //write out tooltip DIV
document.write('<img id="dhtmlpointer" style="visibility: hidden" src="images/arrow2.gif">') //write out pointer image

var ie=document.all
var ns6=document.getElementById && !document.all
var enabletip=false
if (ie||ns6)
var tipobj=document.all? document.all["dhtmltooltip"] : document.getElementById? document.getElementById("dhtmltooltip") : ""

var pointerobj=document.all? document.all["dhtmlpointer"] : document.getElementById? document.getElementById("dhtmlpointer") : ""

function ietruebody(){
  return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}



function positiontip(e){
  if (enabletip){
    var nondefaultpos=false
    var curX=(ns6)?e.pageX : event.clientX+ietruebody().scrollLeft;
    var curY=(ns6)?e.pageY : event.clientY+ietruebody().scrollTop;
    //Find out how close the mouse is to the corner of the window
    var winwidth=ie&&!window.opera? ietruebody().clientWidth : window.innerWidth-20
    var winheight=ie&&!window.opera? ietruebody().clientHeight : window.innerHeight-20

    var rightedge=ie&&!window.opera? winwidth-event.clientX-offsetfromcursorX : winwidth-e.clientX-offsetfromcursorX
    var bottomedge=ie&&!window.opera? winheight-event.clientY-offsetfromcursorY : winheight-e.clientY-offsetfromcursorY

    var leftedge=(offsetfromcursorX<0)? offsetfromcursorX*(-1) : -1000

    //if the horizontal distance isn't enough to accomodate the width of the context menu
    if (rightedge<tipobj.offsetWidth){
      //move the horizontal position of the menu to the left by it's width
      tipobj.style.left=curX-tipobj.offsetWidth+"px"
      nondefaultpos=true
    }
    else if (curX<leftedge)
    tipobj.style.left="5px"
    else{
      //position the horizontal position of the menu where the mouse is positioned
      tipobj.style.left=curX+offsetfromcursorX-offsetdivfrompointerX+"px"
      pointerobj.style.left=curX+offsetfromcursorX+"px"
    }

    //same concept with the vertical position
    if (bottomedge<tipobj.offsetHeight){
      tipobj.style.top=curY-tipobj.offsetHeight-offsetfromcursorY+"px"
      nondefaultpos=true
    }
    else{
      tipobj.style.top=curY+offsetfromcursorY+offsetdivfrompointerY+"px"
      pointerobj.style.top=curY+offsetfromcursorY+"px"
    }
    tipobj.style.visibility="visible"
    if (!nondefaultpos)
    pointerobj.style.visibility="visible"
    else
    pointerobj.style.visibility="hidden"
  }
}

function hTD(){
  if (ns6||ie){
    enabletip=false
    tipobj.style.visibility="hidden"
    pointerobj.style.visibility="hidden"
    tipobj.style.left="-1000px"
    tipobj.style.backgroundColor=''
    tipobj.style.width=''
  }
}

document.onmousemove=positiontip