function cambia(fondo)
{
	if(fondo.className != "fdo_sel")
	{
	 fondo.className = "fdo_sel";
	}
	else
	{
	 fondo.className = "";
	}
	document.formulario.todo.checked = false;
}

function todos()
{
 var c = 0;

 for (c = 0;c < document.formulario.elements.length; c++)
 {
   if (document.formulario.elements[c].type == 'checkbox')
   {
	 var fdo = "t" + document.formulario.elements[c].id;
	 if(document.formulario.todo.checked == true)
	 {	
		document.formulario.elements[c].checked = true;
		fdo.className="fdo_sel";
	 }
	 else
	 {
 		document.formulario.elements[c].checked = false;
	    fdo.className = "";
	 }		
   }
 }
}

function carga()
{
 var c = 0;

 for (c = 0;c < formulario.elements.length; c++)
 {
   if (formulario.elements[c].type == 'checkbox')
   {
	var fdo = eval("t" + formulario.elements[c].id);
	if(formulario.elements[c].checked == true)
	  {
		fdo.className = "fdo_sel";
	  }
	else
	  {
		fdo.className = "";
	  }
    }
  }
}

function iralmunicipio()
{
	formu=document.form;
	var n = formu.pueblo.options[formu.pueblo.selectedIndex].value + ".htm";
	top.location.href = "Municipios/" + n;
}