function removeString(s, t) {

  i = s.indexOf(t);
  r = "";
  if (i == -1) return s;
  r += s.substring(0,i) + removeString(s.substring(i + t.length), t);
  return r;
  }

function AlternarImagen(img) {
	var searchString = '_on';
	var imgSrc = img.src.toLowerCase();
	var index = imgSrc.indexOf(searchString);

	if ( index > 0 ) {
      img.src = removeString(imgSrc, searchString);

      //img.src = imgSrc.substring(0,imgSrc.indexOf(searchString)) + remove(imgSrc.substring(i + searchString.length), searchString);
	} else {

	  var ext = imgSrc.substring(imgSrc.length-4, imgSrc.length );

      var leading = imgSrc.substring(0, imgSrc.length-4);

      var trailing = imgSrc.substring(imgSrc.length-4, imgSrc.length);

	  img.src = leading + searchString + trailing;
	}
}

var menuItems =
[

['<img src=/images/btn-servicios.jpg border="0" onmouseover="AlternarImagen(this)" onmouseout="AlternarImagen(this)" alt="Servicios&nbsp;en&nbsp;Linea" />',"/noticias/servicios_en_linea.html","","","","_self","0", , , , , ],
['<img src=/images/btn-formacion.jpg border="0" onmouseover="AlternarImagen(this)" onmouseout="AlternarImagen(this)" alt="Formaci&oacute;n&nbsp;Virtual" />',"http://www.centrovirtualina.com/","","","","_self","0", , , , , ],
['<img src=/images/btn-multimedia.jpg border="0" onmouseover="AlternarImagen(this)" onmouseout="AlternarImagen(this)" alt="Multimedia" />',"http://www.ina.ac.cr/hagalofacil/","","","","_self","0", , , , , ],
['<img src=/images/btn-pymes.gif border="0" onmouseover="AlternarImagen(this)" onmouseout="AlternarImagen(this)" alt="INA&nbsp;PYMES" />',"http://www.inapymes.com/","","","","_self","0", , , , , ],
['<img src=/images/btn-radio.jpg border="0" onmouseover="AlternarImagen(this)" onmouseout="AlternarImagen(this)" alt="Radio&nbsp;INA" />',"http://www.radioina.com","","","","_self","0", , , , , ],
['<img src=/images/btn-informacion.jpg border="0" onmouseover="AlternarImagen(this)" onmouseout="AlternarImagen(this)" alt="Informacion&nbsp;de&nbsp;Cursos" />',"http://infoweb.ina.ac.cr/cursos/","","","","_self","0", , , , , ],
['<img src=/images/btn-estudiantil.jpg border="0" onmouseover="AlternarImagen(this)" onmouseout="AlternarImagen(this)" alt="Correo&nbsp;Estudiantil" />',"https://login.live.com/login.srf?cbcxt=out&vv=910&wa=wsignin1.0&wtrealm=urn:federation:MicrosoftOnline&wctx=wa%3Dwsignin1.0%26rpsnv%3D2%26ct%3D1326294169%26rver%3D6.1.6206.0%26wp%3DMBI_KEY%26wreply%3Dhttps:%252F%252Foutlook.com%252Fowa%252F%26id%3D260563","","","","_blank","0", , , , , ],


];


lugar =document.location.href

if(lugar.indexOf("infoweb")!=-1)
{
	for(i=0;i<=menuItems.length-1;i++)
	{	texto = menuItems[i][0]&""
		texto = menuItems[i][0].replace(/src=/,"src=http://www.ina.ac.cr");
		menuItems[i][0] = texto;
	}
}


for(i=0;i<=menuItems.length-1;i++)
{
	menuItems[i][0] = menuItems[i][0].split("&nbsp;").join(" ");
}