/* toggles an element by id */
function toggle(el) {
	el = document.getElementById(el);
	el.style.display = (el.style.display != 'none' ? 'none' : '' );
}

/* newsletter validate */
function newsletterValidate() {
	var myLabel = document.getElementById('newsletter_label');
	var myInput = document.getElementById('newsletter_input');
	if (!myInput.value || myInput.value == myLabel.firstChild.nodeValue) {
		var labelValue = myLabel.firstChild.nodeValue.toLowerCase();
		alert('Por favor, '+ labelValue + '.');
		return false;
	} else {
		return true;
	}
}

/* newsletter label */
function newsletterLabel(myLabel,myInput) {
	var myLabel = document.getElementById(myLabel);
	var myInput = document.getElementById(myInput);
	myInput.setAttribute('value',myLabel.firstChild.nodeValue);
	myLabel.style.display = 'none';
	myInput.onclick = function() {
		if (myInput.value == myLabel.firstChild.nodeValue) {
			myInput.value = '';
		}
	}
	myInput.onblur = function() {
		if (!myInput.value) {
			myInput.value = myLabel.firstChild.nodeValue;
		}
	}
}

window.onload = function() {
	newsletterLabel('newsletter_label','newsletter_input');
}