function validateRegisterForm(){
	var valid = true;
	
	if(document.register_form.teamNum.value == ""){
		alert("Please enter a team number");
		valid = false;
	}
	
	if(!isNumeric(document.register_form.teamNum.value)){
		alert("Please enter a valid, numeric team number");
		valid = false;
	}
	
	if(document.register_form.teamName.value == ""){
		alert("Please enter a team name");
		valid = false;
	}
	
	if(document.register_form.teamLoc.value == ""){
		alert("Please enter a team location");
		valid = false;
	}
	if(document.register_form.contactName.value == ""){
		alert("Please enter a contact name");
		valid = false;
	}
	if(document.register_form.contactEmail.value == ""){
		alert("Please enter a contact email");
		valid = false;
	}

	return valid;
}

function validateVolunteerForm(){
	var valid = true;
	
	if(document.register_form.firstName.value == ""){
		alert("Please enter a first name");
		valid = false;
	}
	
	if(document.register_form.lastName.value == ""){
		alert("Please enter a last name");
		valid = false;
	}
	
	if(document.register_form.loc.value == ""){
		alert("Please enter a location");
		valid = false;
	}
	if(document.register_form.email.value == ""){
		alert("Please enter an email");
		valid = false;
	}
	
	if(document.register_form.phone.value == ""){
		alert("Please enter a phone number");
		valid = false;
	}
	
	if((document.register_form.day[0].checked == false) && (document.register_form.day[1].checked == false) && (document.register_form.day[2].checked == false)) {
		alert("Please enter the days you can volunteer");
		valid = false;
	}
	
	if((document.register_form.contact[0].checked == false) && (document.register_form.contact[1].checked == false)) {
		alert("Please enter your preferred method of contact you can volunteer");
		valid = false;
	}

	return valid;
}

function isNumeric(x){
	var validChars = "0123456789";
	var validity = true;
	
	if(x.length == 0){
		validity = false;
	} else {
		for(var i = 0; i < x.length && validity; i++){
			if(validChars.indexOf(x.charAt(i)) == -1){
				validity = false;
			}
		}
	}
	
	return validity;
}