// Keeping Compact Forms Accessible
// http://www.alistapart.com/d/makingcompactformsmoreaccessible/

function initOverLabels () {
  if (!document.getElementById) return;  	

  var labels, id, field;

  // Set focus and blur handlers to hide and show 
  // LABELs with 'overlabel' class names.
  labels = document.getElementsByTagName('label');
  for (var i = 0; i < labels.length; i++) {
	
    if (labels[i].className == 'overlabel') {

      // Skip labels that do not have a named association
      // with another field.
      id = labels[i].htmlFor || labels[i].getAttribute('for');
      if (!id || !(field = document.getElementById(id))) {
        continue;
      }

      // Change the applied class to hover the label 
      // over the form field.
      labels[i].className = 'overlabel-apply';

      // Hide any fields having an initial value.
      if (field.value !== '') {
        hideLabel(field.getAttribute('id'), true);
      }

      // Set handlers to show and hide labels.
      field.onfocus = function () {
        hideLabel(this.getAttribute('id'), true);
      };
      field.onblur = function () {
        if (this.value === '') {
          hideLabel(this.getAttribute('id'), false);
        }
      };

      // Handle clicks to LABEL elements (for Safari).
      labels[i].onclick = function () {
        var id, field;
        id = this.getAttribute('for');
        if (id && (field = document.getElementById(id))) {
          field.focus();
        }
      };

    }
  }
};

function hideLabel (field_id, hide) {
  var field_for;
  var labels = document.getElementsByTagName('label');
  for (var i = 0; i < labels.length; i++) {
    field_for = labels[i].htmlFor || labels[i].getAttribute('for');
    if (field_for == field_id) {
      labels[i].style.textIndent = (hide) ? '-1000px' : '0px';
      return true;
    }
  }
}


// VALIDAÇÃO DE FORMS
function isEmpty( str){
	regexp = '^[\s ]*$';
	if (str.value.search(regexp) == -1)	{ 
		return false;
	} else {
		return true;
	}
}

function notValidEmail( str ){
	regexp = '^[\._a-z0-9-]+@[\.a-z0-9-]+[\.]{1}[a-z]{2,4}$';
	if (str.value.search(regexp) == -1)	{ 
		return true;
	} else {
		return false;
	}	
}

function notChecked( box ){
    if( box.checked ){
        return false;
    }
    else{
        return true;
    }
}



function Mascara(tipo, campo, teclaPress) {
	if (window.event)
	{
		var tecla = teclaPress.keyCode;
	} else {
		tecla = teclaPress.which;
	}
 
	var s = new String(campo.value);
	// Remove todos os caracteres à seguir: ( ) / - . e espaço, para tratar a string denovo.
	s = s.replace(/(\.|\(|\)|\/|\-| )+/g,'');
 
	tam = s.length + 1;

	if ( tecla != 9 && tecla != 8 ) {

		if (tecla > 31 && (tecla < 48 || tecla > 57)) {
			return false;
		} else {

			switch (tipo)
			{
			case 'CPF' :
				if (tam > 3 && tam < 7)
					campo.value = s.substr(0,3) + '.' + s.substr(3, tam);
				if (tam >= 7 && tam < 10)
					campo.value = s.substr(0,3) + '.' + s.substr(3,3) + '.' + s.substr(6,tam-6);
				if (tam >= 10 && tam < 12)
					campo.value = s.substr(0,3) + '.' + s.substr(3,3) + '.' + s.substr(6,3) + '-' + s.substr(9,tam-9);
			break;
	 
			case 'CNPJ' :
	 
				if (tam > 2 && tam < 6)
					campo.value = s.substr(0,2) + '.' + s.substr(2, tam);
				if (tam >= 6 && tam < 9)
					campo.value = s.substr(0,2) + '.' + s.substr(2,3) + '.' + s.substr(5,tam-5);
				if (tam >= 9 && tam < 13)
					campo.value = s.substr(0,2) + '.' + s.substr(2,3) + '.' + s.substr(5,3) + '/' + s.substr(8,tam-8);
				if (tam >= 13 && tam < 15)
					campo.value = s.substr(0,2) + '.' + s.substr(2,3) + '.' + s.substr(5,3) + '/' + s.substr(8,4)+ '-' + s.substr(12,tam-12);
			break;
	 
			case 'TEL' :
				if (tam > 2 && tam < 4)
					campo.value = '(' + s.substr(0,2) + ') ' + s.substr(2,tam);
				if (tam >= 7 && tam < 11)
					campo.value = '(' + s.substr(0,2) + ') ' + s.substr(2,4) + '-' + s.substr(6,tam-6);
			break;
	 
			case 'DATA' :
				if (tam > 2 && tam < 4)
					campo.value = s.substr(0,2) + '/' + s.substr(2, tam);
				if (tam > 4 && tam < 11)
					campo.value = s.substr(0,2) + '/' + s.substr(2,2) + '/' + s.substr(4,tam-4);
			break;
			}
		}
	}
}


function moveTam(campo,limite,proximo)
{
	if(document.getElementById(campo).value.length==limite){
		document.getElementById(proximo).focus();
	}
}

function limitaTam(limitField, limitNum) {

	if (limitField.value.length > limitNum) {

		limitField.value = limitField.value.substring(0, limitNum);

	}
}


// ONLOAD

window.onload = function () {
  setTimeout(initOverLabels, 50);
};