var aImageWells   = new Array();
var aImagetamano_tamano_automatico  = new Array();
var aImagetamano_ancho  = new Array();
var aImagetamano_alto  = new Array();
var aImagetamano_titulo  = new Array();
var aDRCtrls    = new Array();
var aDRPictRect = new Array();

//Deteccion de Browser
var ua        = navigator.userAgent.toLowerCase();
var isIE4plus = (document.all) ? true : false;
var isNS4     = (document.layers) ? true : false;
var isNS6plus = (!document.layers && ua.indexOf('netscape')>=0) ? true : false;
var isMac     = (ua.indexOf('mac')>=0) ? true : false;
var isWinNT   = (ua.indexOf('NT 4.')>=0) ? true : false;



function SetDRImage(xiImageType, xiImageWell, xlIDU, xiRotation)
{
  var sURLImage;
  var iPrevImageWell;
  var iNextImageWell;
  
  sURLImage = aImageWells[xiImageWell];
  //Seteo la imágen principal 
  if (xiImageType == 1)
  {
    document.getElementById("ProductImage").src = sURLImage;
    if (aImagetamano_tamano_automatico[xiImageWell] != 1)
     {
       document.getElementById("ProductImage").width = aImagetamano_ancho[xiImageWell];    
       document.getElementById("ProductImage").height = aImagetamano_alto[xiImageWell];
      }
    document.getElementById("ProductImage").alt =aImagetamano_titulo[xiImageWell];
    document.getElementById("DRImage_" + xiImageWell).className = "nbkbkg";
    document.getElementById("DRImage_" + xiImageWell).innerHTML = "<b>" + (xiImageWell + 1) + "</b>";
    if (aImageWells.length == 1)
    {
      document.getElementById("DRImgMenos").src = "/tiendas_c/graficas_generales/menos_off.gif";
      document.getElementById("DRImgMas").src = "/tiendas_c/graficas_generales/mas_off.gif";
      document.getElementById("PrevDRImg").href = 'javascript:SetDRImage(1,' + xiImageWell + ',' + xlIDU + ', 0);';
      document.getElementById("NextDRImg").href = 'javascript:SetDRImage(1,' + xiImageWell + ',' + xlIDU + ', 0);';      
    }
    else
    {
      if (xiImageWell == 0)
      {
        iPrevImageWell = aImageWells.length - 1;
      }
      else
      {
        iPrevImageWell = xiImageWell - 1;
      }
      if (xiImageWell == (aImageWells.length - 1))
      {
        iNextImageWell = 0;
      }
      else
      {
        iNextImageWell = xiImageWell + 1;
      }
      switch(xiRotation)
      {
        //Próxima Imágen >>.
        case 1:
          document.getElementById("DRImage_" + iPrevImageWell).className = "nbkg";
          document.getElementById("DRImage_" + iPrevImageWell).innerHTML = iPrevImageWell + 1;
          break;
        //Anterior Imágen <<.
        case -1:
          document.getElementById("DRImage_" + iNextImageWell).className = "nbkg";
          document.getElementById("DRImage_" + iNextImageWell).innerHTML = iNextImageWell + 1;
          break;
        //Click en link de Imágen.
        case 0:
          for(var iCounter = 0; iCounter < aImageWells.length; iCounter++)
          {
            if (iCounter != xiImageWell)
            {
              document.getElementById("DRImage_" + iCounter).className = "vinculo_no_subrayar";
              document.getElementById("DRImage_" + iCounter).innerHTML = iCounter + 1;
            }
          }
          break;                
      }
      document.getElementById("PrevDRImg").href = 'javascript:SetDRImage(1,' + iPrevImageWell + ',' + xlIDU + ', -1);';
      document.getElementById("NextDRImg").href = 'javascript:SetDRImage(1,' + iNextImageWell + ',' + xlIDU + ', 1);';
    }
  }
  //Seteo la imágen principal 
  else
  {
    document.getElementById("ProductImage2").src = sURLImage;
  }
}