/* *********** ycc - 08/01/2003 *********** */

// Rescata nombre de edicion desde el frame head y lo asigna al layer correspondiente

function carga_left() {
  // Cuando la pag. esta sola retorna.
  var i = 0;
  var head_present = false;

  while (i < parent.frames.length) {
    if (parent.frames[i].name == 'head') {
      head_present = true;
    };
    i++;
  };

  if (! head_present) {
    return;
  };

  var ns = (document.layers)? true:false;
  var ie = (document.all)? true:false;

  // Rescata nombre de edicion desde el frame head.
  // var nom_edic = parent.head.document.f1.NOM_EDIC.value;
  if (document.getElementById) {
    var nom_edic = document.getElementById("head").document.f1.NOM_EDIC.value;
  }
  else {
    var nom_edic = parent.headdrs.document.f1.NOM_EDIC.value;
  };

  var path = '../../../../../prontus4_nots/site/edic/' + nom_edic + '/port/left.html'

  // Carga layer.
  if (nom_edic != '') {
    if (ns) {
      window.document.layers["nsleft"].src = path;
    }
    else if (document.getElementById) {
      window.document.getElementById("ieleft").src = path;
    }
    else if (document.all) {
      window.document.all.ieleft.src = path;
    };
  };

}; // carga_left

// ----------------------------------------
function get_path_left() {

  // Si no detecta el head, entonces retorna.
  var default_path = "../../../../../imag2004/cont/b.gif";
  var i = 0;
  var head_present = false;

  while (i < parent.frames.length) {
    if (parent.frames[i].name == 'headdrs') {
      head_present = true;
    };
    i++;
  };

  if (! head_present) {
    return default_path;
  };

  // Rescata nombre de edicion desde el frame head.
  // http://www.estrellavalpo.cl/prontus4_nots/site/edic/2004_06_15_1/port/head.html
  var head_url = parent.headdrs.document.URL;
  var re = /(\d\d\d\d_\d\d_\d\d_\d)/;
  var inicio = head_url.search(re);
  if (inicio < 0) { return default_path; };
  var nom_edic = head_url.slice(inicio,inicio+12);

  var path;

  if (nom_edic != '') {
    path = '../../../../../prontus4_nots/site/edic/' + nom_edic + '/port/left.html'
  }
  else {
    path = default_path;
  };

  return path;

}; // get_path_left

// ----------------------------------------
function volver_art() {
  window.history.back();
};

// ----------------------------------------
function get_left() {
  var buffer;
  var path_left = get_path_left();

  buffer = "\n" + '<iframe ';
  buffer += "\n" + 'align="center" ';
  buffer += "\n" + 'class="ieframe" ';
  buffer += "\n" + 'id="ieframe1" ';
  buffer += "\n" + 'name="ieframe1" ';
  buffer += "\n" + 'allowTransparency="true" ';
  buffer += "\n" + 'border="0" ';
  buffer += "\n" + 'frameborder="0" ';
  buffer += "\n" + 'border="0" ';
  buffer += "\n" + 'framespacing="0" ';
  buffer += "\n" + 'marginheight="0" ';
  buffer += "\n" + 'marginwidth="0" ';
  buffer += "\n" + 'height="1500" ';
  buffer += "\n" + 'width="120" ';
  buffer += "\n" + 'scrolling="no" ';
  buffer += "\n" + 'zindex="0" ';
  buffer += "\n" + 'src="' + path_left + '"> ';
  buffer += "\n" + '</IFRAME> ';

  return buffer;
}; // get_left