// SIGN UP
function SignupCheck(form) {
valcheck = form.email;
hasDot = valcheck.value.indexOf(".");
hasAt = valcheck.value.indexOf("@");

if (hasDot == -1 || hasAt == -1) {
	alert("Please enter your Email Address.");
	valcheck.focus();
	return false;
}

//First Name Check
valcheck = form.fname;
if (valcheck.value == "") {
	alert("Please enter your First Name");
	valcheck.focus();
	return false;
}

//Last Name Check			
valcheck = form.lname;
if (valcheck.value == "") {
	alert("Please enter your Last Name");
	valcheck.focus();
	return false;
} 

//Zip Check	
valcheck = form.zip;
if (valcheck.value == "") {
	alert("Please enter your Zip Code");
	valcheck.focus();
	return false;
}

//Birth Month Check	
valcheck = form.bmonth;
if (valcheck.value == "") {
	alert("Please enter your Birth Month");
	valcheck.focus();
	return false;
}

//Birth Day Check	
valcheck = form.bday;
if (valcheck.value == "") {
	alert("Please enter your Birth Day");
	valcheck.focus();
	return false;
}

//Birth Year Check	
valcheck = form.byear;
if (valcheck.value == "") {
	alert("Please enter your Birth Year (YYYY)");
	valcheck.focus();
	return false;
}

 else {
	return checkAge();
}
}

// CHECK AGE
function checkAge() {
var d = new Date();
var curryear = d.getFullYear();
var agelimit = 13;
var thebyear = document.myForm.byear.value;
var diffyear = curryear - thebyear;

if (diffyear < agelimit) {
window.location.href = "signup_underage.php";
	return false;
} else {
return true;
}
}

//Birthday Check & Tab
function checkLength(currEl, nextEl) {
      if (currEl.value.length == currEl.maxLength) {
	document.myForm.elements[nextEl].focus();
	}
     }	

// OPEN WINDOW
function openWin(url,name,popW,popH) {
w = screen.availWidth;
h = screen.availHeight;
leftPos = 5;
topPos = 5;
window.open(url,name,'width='+popW+',height='+popH+',scrollbars=no,toolbar=no,status=no,resizable=yes,top='+ topPos+',left='+leftPos);
}