function email_join() {
	var error = 0;
	var fname = document.getElementById("fname").value;
	var lname = document.getElementById("lname").value;
	var email = document.getElementById("email").value;
	var c_name = document.getElementById("c_name").value;
	var address = document.getElementById("address").value;
	var city = document.getElementById("city").value;
	var zip = document.getElementById("zip").value;
	var busy = document.getElementById("busy").value;
	
	if (trim(fname)=="") error = 1;
	if (trim(lname)=="") error = 1;
	if (trim(email)=="") error = 1;
	if (trim(c_name)=="") error = 1;
	if (trim(address)=="") error = 1;
	if (trim(city)=="") error = 1;
	if (trim(zip)=="") error = 1;
	if (trim(busy)=="") error = 1;
	
	if (error) {
		alert("All required informations need to be inserted before submitting the form.");
		return false;
	}
return valid(email);
}

function fiera() {
	var container = document.getElementById("fiera");
	if (container.style.display=='inline') {
		container.style.display = 'none';
	} else {
		container.style.display = 'inline';
	}
}

/*function more_span(num) {
	var container = document.getElementById("more_info_"+num);
	var elem = document.getElementById("link"+num);
   // alert(elem.innerHTML);
	if (elem.innerHTML == '<BR>Close this News' || elem.innerHTML == '<br>Close this News') {
		container.style.display = 'none';
		elem.innerHTML = '<br>Read More';
	} else {
		container.style.display = 'inline';
		elem.innerHTML = '<BR>Close this News';
	}
}*/

function more_span(name){
	var name_span = document.getElementById('more_'+name);
	var name_info_span = document.getElementById('more_info_'+name);
	if (name_span.style.display == 'none') name_span.style.display = 'inline';
	else name_span.style.display = 'none';
	if (name_info_span.style.display == 'none') name_info_span.style.display = 'inline';
	else name_info_span.style.display = 'none';
}

function more_span_mod(name){
	var name_span = document.getElementById('more_'+name);
	var name_info_span = document.getElementById('more_info_'+name);
	if (name_info_span.style.display == 'none') name_info_span.style.display = 'inline';
	else name_info_span.style.display = 'none';
}

function email_trade() {
	var error = 0;
	var fname = document.getElementById("fname").value;
	var email = document.getElementById("email").value;
	var busy = document.getElementById("busy").value;
	
	if (trim(fname)=="") error = 1;
	if (trim(email)=="") error = 1;
	if (trim(busy)=="") error = 1;
	
	if (error) {
		alert("All required informations need to be inserted before submitting the form.");
		return false;
	}
return valid(email);
}

function email_contact() {
	var error = 0;
	var fname = document.getElementById("fname").value;
	var email = document.getElementById("email").value;
	var comments = document.getElementById("comments").value;
	
	if (trim(fname)=="") error = 1;
	if (trim(email)=="") error = 1;
	if (trim(comments)=="") error = 1;
	
	if (error) {
		alert("All required informations need to be inserted before submitting the form.");
		return false;
	}
return valid(email);
}

function join_delete() {
	var fname = document.getElementById("fname").value = "";
	var lname = document.getElementById("lname").value = "";
	var email = document.getElementById("email").value = "";
	var c_name = document.getElementById("c_name").value = "";
	var address = document.getElementById("address").value = "";
	var city = document.getElementById("city").value = "";
	var zip = document.getElementById("zip").value = "";
	var busy = document.getElementById("busy").value = "";
	var fax = document.getElementById("fax").value = "";
	var phone = document.getElementById("phone").value = "";
}

function trade_delete() {
	var fname = document.getElementById("fname").value = "";
	var email = document.getElementById("email").value = "";
	var busy = document.getElementById("busy").value = "";
}

function conatct_delete() {
	var fname = document.getElementById("fname").value = "";
	var email = document.getElementById("email").value = "";
	var comments = document.getElementById("comments").value = "";
}

function valid(mail){
	var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/; // not valid
	var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/; // valid
	if ((mail == '') || (reg1.test(mail)) || (!reg2.test(mail))) {
		alert('Please, insert a valid Email address before submitting the form.');
		return false;
	} else return true;
}	

function trim(stringToTrim) {
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}

function show_contacts(contact){
	if (contact==1){
		var contact_form = document.getElementById('contact_form');
		
	} else if (contact==2){
		var contact_form = document.getElementById('show_phoenix');
		
	}
		if (contact_form.style.display == 'inline-block') contact_form.style.display = 'none';
		else contact_form.style.display = 'inline-block';
	
}

function display_form() {
	var doc_form = document.getElementById("join");
	doc_form.style.display = 'block';
}