function email_focus () {
	var field = document['subscribe'].email;
	temp = field.value;
	if (field.value!=''&&(field.value=='Su email'||field.value=='Your email')) {
		field.value = '';
	}
}
function email_blur () {
	var field = document['subscribe'].email;
	if (field.value == '') {
		field.value = temp;
	}
}
function email_submit (lang) {
	var field = document['subscribe'].email;
	if (field.value==''||field.value=='Su email'||field.value=='Your email') {
		if (lang=='es') {
			alert ('Debe escribir un email.\nPor favor intente de nuevo.');
		} else {
			alert ('You must specify an email.\nPlease try again.');
		}
		field.focus();
		return false;
	} else {
		return true;
	}
}