function cambia_(a, b)
{
	var1 =String( a ); 
	var2 =String( b ); 
	var1a = document.getElementById( var1 ); 
	var1a.style.display="none";
	var2b = document.getElementById( var2 ); 
	var2b.style.display="";
}
function validar(a,b,c,d, e, f, g, h,i){ 
	
	a = document.getElementById( a ); 
	b = document.getElementById( b ); 
	c = document.getElementById( c ); 
	d = document.getElementById( d ); 
	e = document.getElementById( e ); 
	f = document.getElementById( f ); 
	g = document.getElementById( g ); 
	h = document.getElementById( h ); 
	i = document.getElementById( i ); 

	
	if(a.value == ''){ 
    alert('Ingrese Nombre'); 
    a.focus(); 
    return false; 
  }
  if(b.value == ''){ 
    alert('Ingrese Apellido'); 
    b.focus(); 
    return false; 
  }
if(i.value == 0){ 
    alert('Seleccione País'); 
    i.focus(); 
    return false; 
  }

  if(c.value == ''){ 
    alert('Ingrese Mail'); 
    c.focus(); 
    return false; 
  }
  if (!c.value.match("@"))
  {
  	alert("E-mail Errorneo") 
  	c.value = '';
  	c.focus(); 
    return false 
	} 
   if(d.value == ''){ 
    alert('Ingrese Confirmación de mail'); 
    d.focus(); 
    return false; 
  }
  if(d.value != c.value)
  {
  	alert('Mail no Coinciden');
  	c.value='';
  	d.value='';
  	c.focus();
  	return false;
  }
  if(e.value == ''){ 
    alert('Ingrese Nick'); 
    e.focus(); 
    return false; 
  }
  if(f.value == ''){ 
    alert('Ingrese Contraseña'); 
    f.focus(); 
    return false; 
  }
  if(g.value == ''){ 
    alert('Ingrese confirmar Contraseña'); 
    g.focus(); 
    return false; 
  }
  if(f.value != g.value)
  {
  	alert('Contraseñas no Coinciden');
  	f.value='';
  	g.value='';
  	f.focus();
  	return false;
  }
  if (!h.checked){//Elemento type=checkbox 
	alert("Debes aceptar las condiciones");
	return false;
  }
   cambia_('fot', 'fot2')
  return true;
}
function valida2(a, b, c, d)
{
	a = document.getElementById( a ); 
	b = document.getElementById( b ); 
	c = document.getElementById( c ); 
	d = document.getElementById( d ); 
	
	if(a.value == 0){ 
    alert('Seleccione primer punto'); 
     a.focus(); 
    return false; 
  }
     if(b.value == 0){ 
    alert('Seleccione segundo punto'); 
     b.focus(); 
    return false; 
  } 
if(c.value == 0){ 
    alert('Seleccione tercer punto'); 
     c.focus(); 
    return false; 
  }
  if(d.value == 0){ 
    alert('Seleccione cuarto punto'); 
     d.focus(); 
    return false; 
  }
	return true;
}


function vali(a,b,c)
{
	a = document.getElementById( a ); 
	b = document.getElementById( b ); 
	c = document.getElementById( c ); 

	
	
	if(a.value == 0){ 
    alert('Seleccione primer punto'); 
     a.focus(); 
    return false; 
  }
     if(b.value == 0){ 
    alert('Seleccione segundo punto'); 
     b.focus(); 
    return false; 
  } 
if(c.value == 0){ 
    alert('Seleccione tercer punto'); 
     c.focus(); 
    return false; 
  }
  
  cambia_('fot3', 'fot4')
	return true;
}

function valida_form()
{
if(!document.getElementById('QUESTION_TEXT6_1').checked 
	&& !document.getElementById('QUESTION_TEXT6_2').checked
	&& !document.getElementById('QUESTION_TEXT6_3').checked
	&& !document.getElementById('QUESTION_TEXT6_4').checked
	&& !document.getElementById('QUESTION_TEXT6_5').checked
	&& !document.getElementById('QUESTION_TEXT6_6').checked
	&& !document.getElementById('QUESTION_TEXT6_7').checked
	&& !document.getElementById('QUESTION_TEXT6_8').checked
	&& !document.getElementById('QUESTION_TEXT6_9').checked
	&& !document.getElementById('QUESTION_TEXT6_10').checked
	&& !document.getElementById('QUESTION_TEXT6_11').checked
	&& !document.getElementById('QUESTION_TEXT6_12').checked
	&& !document.getElementById('QUESTION_TEXT6_13').checked
	&& !document.getElementById('QUESTION_TEXT6_14').checked
	&& !document.getElementById('QUESTION_TEXT6_15').checked
	&& !document.getElementById('QUESTION_TEXT6_16').checked
	&& !document.getElementById('QUESTION_TEXT6_17').checked
	&& !document.getElementById('QUESTION_TEXT6_18').checked
	&& !document.getElementById('QUESTION_TEXT6_19').checked
	&& !document.getElementById('QUESTION_TEXT6_20').checked
	&& !document.getElementById('QUESTION_TEXT6_21').checked
	)
	{ 
	alert('Debes selecionar al menos una opción');
	return false;
	}
return true;
}