function FamiliasPreloadImages() {
  if (document.images) {

	fami = new Image();
	fami.src = "images/familias/familias.gif";

	fertilizantes = new Image();
	fertilizantes.src = "images/familias/fertilizantes.gif";
	aminoacidos = new Image();
	aminoacidos.src = "images/familias/aminoacidos.gif";

	sushumicas = new Image();
	sushumicas.src = "images/familias/sushumicas.gif";
	mejoradores = new Image();
	mejoradores.src = "images/familias/mejoradores.gif";

	quelatos = new Image();
	quelatos.src = "images/familias/quelatos.gif";
	bactericidas = new Image();
	bactericidas.src = "images/familias/bactericidas.gif";

	reguladores = new Image();
	reguladores.src = "images/familias/reguladores.gif";
	acondicionadores = new Image();
	acondicionadores.src = "images/familias/acond.gif";

	inductores = new Image();
	inductores.src = "images/familias/inductores.gif";
	fungicidas = new Image();
	fungicidas.src = "images/familias/fungicidas.gif";
  }
}

function MM_swapImage() { //v1.0
  var i,theObj,j=0,swapArray=new Array,oldArray=document.MM_swapImgData;
  for (i=0; i < (MM_swapImage.arguments.length-2); i+=3) {
    theObj = eval(MM_swapImage.arguments[(navigator.appName == 'Netscape')?i:i+1])
    if (theObj != null) {
      swapArray[j++] = theObj;
      swapArray[j++] = (oldArray==null || oldArray[j-1]!=theObj)?theObj.src:oldArray[j];
      theObj.src = MM_swapImage.arguments[i+2];
  } }
  document.MM_swapImgData = swapArray; //used for restore
}

function MM_swapImgRestore() { //v1.0
  if (document.MM_swapImgData != null)
    for (var i=0; i<(document.MM_swapImgData.length-1); i+=2)
      document.MM_swapImgData[i].src = document.MM_swapImgData[i+1];
}