function switchLayer(indiceopcion,indicemenuverde) {
   
   for(i=0; i<7;i++){
      document.getElementById('opcion'+i).className='notselected';
   }
   document.getElementById('opcion'+indiceopcion).className='selected';
  
   
   document.getElementById('menuverde10').style.display='none';
   document.getElementById('menuverde11').style.display='none';
   document.getElementById('menuverde0').style.display='none';
   document.getElementById('menuverde1').style.display='none';
   document.getElementById('menuverde3').style.display='none';
   document.getElementById('menuverde4').style.display='none';
   document.getElementById('menuverde5').style.display='none';
   document.getElementById('menuverde6').style.display='none';
   document.getElementById('menuverde'+indicemenuverde).style.display='block';
}
/*function changebelowchat(){
document.getElementById("chatinferior").style.background="url(/webimages/botones/banners/cenote_playadelcarmen_2.jpg) no-repeat";
}
function changebelowchat2(){
document.getElementById("chatinferior").style.background="url(/webimages/botones/banners/cenote_playadelcarmen_1.jpg) no-repeat";
}*/
function validanews(theform)
{
 if (theform.news_name.value=="") {
	 alert('NOMBRE es requerido');
	 return false;
 }
  if (theform.news_email.value=="") {
	 alert('EMAIL es requerido'); 
	 return false;
 }
 
return true; 
}