function fncFechaMaterias(intMateria) {
    
  var x;
  var intProxima;
  var strFuncao;
  var rodaGira;
        
  if (intMateria == 4) {
    intProxima = 1;
  } else {
    intProxima = intMateria + 1;
  }

  for (x=1;x<=4;x++) {
    
    if(document.getElementById('men' + x + '4') != null) {
      document.getElementById('men' + x + '4').className='';
      document.getElementById('men' + x + '4').className='';
      document.getElementById('men' + x + '4').className='';
      document.getElementById('men' + x + '4').className='';
      document.getElementById('des' + x).style.display='none';
     }
  }
  
  if(document.getElementById('men' + intMateria + '4') != null) {
    
    document.getElementById('men' + intMateria + '4').className='selected';
    document.getElementById('men' + intMateria + '4').className='selected';
    document.getElementById('men' + intMateria + '4').className='selected';
    document.getElementById('men' + intMateria + '4').className='selected';
    document.getElementById('des' + intMateria).style.display='block';
 
    strFuncao = 'fncFechaMaterias(' + intProxima + ', 4)';
  
    rodaGira = setTimeout(strFuncao, 5000);
    
  }
  
}


function abreGuia(strGuia, intElemento, intSize) {
	  
	  var strNome;
	  intSize++;

	  for (i=1; i < intSize; i++) {
	    strNome = strGuia + '_tab' + i;
		    document.getElementById(strNome).style.display='none';
			    strNome = strGuia + '_guia' + i;
	    document.getElementById(strNome).className='Guia';
			  }
		
		  strNome = strGuia + '_tab' + intElemento;
		  document.getElementById(strNome).style.display='block';
	  
	  strNome = strGuia + '_guia' + intElemento;
	  document.getElementById(strNome).className='On';
		  
		}