wFORMS.functionName_formValidation = "doPostBack";
  function doPostBack(e) { 
    if(!e) e = window.event;    
    
    //  call the default error management.  
    if(wFORMS.behaviors['validation'].run(e)) {            
      //  doing our custom validation here:

      // if needed, the form element can be obtained with:
      // var f = wFORMS.helpers.getSourceElement(e);

	  if (document.getElementById('senha') && document.getElementById('senha2')) {
		  var passwordField = document.getElementById('senha');
		  var confirmField  = document.getElementById('senha2');
		   
		  if (passwordField.value) {
		  	var invalid = " "; // espaço = caractere invalido
			var minLength = 6; // mínimo de caracteres
		  
			if (passwordField.value.length < minLength) {
				 var errorMessage = "Sua senha deve possuir no mínimo 6 caracteres.";
				 wFORMS.behaviors['validation'].showError(confirmField, errorMessage);
				// we need to prevent the submission:
				return wFORMS.helpers.preventEvent(e);
			} else if (passwordField.value.indexOf(invalid) > -1) {
				 var errorMessage = "Espaço em branco não é permitido na senha.";
				 wFORMS.behaviors['validation'].showError(confirmField, errorMessage);
				// we need to prevent the submission:
				return wFORMS.helpers.preventEvent(e);
			}
	  	}
		  
		  if(passwordField.value != confirmField.value) {
			// passwords don't match, show error message:
			var errorMessage = "Senhas não conferem.";
			wFORMS.behaviors['validation'].showError(confirmField, errorMessage);
			// we need to prevent the submission:
			return wFORMS.helpers.preventEvent(e);     
		  }
	  }
      // otherwise all is good, 
      return true;                        
  }
  }