function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function isEmail(fldEmail) {
  var str = fldEmail.value; // email string
  var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/; // not valid
  var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/; // valid
  if (!reg1.test(str) && reg2.test(str)) { // if syntax is valid
    return true;
  }
  alert("\"" + str + "\" is an invalid email!"); // this is also optional
  fldEmail.focus();
  fldEmail.select();
  return false;
}
function isNumeric(str){
	for (i=0; i<str.length; i++){
		if(str.charAt(i) < "0" || str.charAt(i) > "9"){
			return false;
		}
	}
	return true;
}
function numberCheck(item, name){
	if (item.value == "")
	{
		alert("Please enter " + name);
		item.focus();
		return false;
	}else{
		key = item.value;  // Get key value from key code
		if (!isNumeric(key)){
			alert("Please enter numbers only for " + name);
			item.focus();
			return false;
		}
	}
	return true;
}
function check(item, name){
	if (item.value == "")
	{
		alert("Please enter " + name);
		item.focus();
		return false;
	}
	return true;
}
function selectCheck(item, name){
	if (item.selectedIndex == 0)
	{
		alert("Please select " + name);
		item.focus();
		return false;
	}
	return true;
}
function emailCheck(item){
	if (item.value == "")
	{
		alert("Please enter your Email Address");
		item.focus();
		return false;
	}else{
		if (!isEmail(item)){
			return false;
		}
	}
	return true;
}
function validate(theForm){
	if(!check(theForm.FirstName, "First Name")){
		return false;
	}
	if(!check(theForm.LastName, "Last Name")){
		return false;
	}
	if(!check(theForm.CellPhone, "Cell Phone")){
		return false;
	}
	if(!emailCheck(theForm.EmailAddress, "Email Address")){
		return false;
	}
	if(!check(theForm.YourBirthdate, "Your Birthdate")){
		return false;
	}
	if(!selectCheck(theForm.event_date, "Party Date")){
		return false;
	}
	if(!selectCheck(theForm.Musicpreference, "Music Preference")){
		return false;
	}
	if(!selectCheck(theForm.HowHeard, "How You Heard of Us")){
		return false;
	}
	if(!theForm.IAgree.checked){
		alert("Please enter a Check next to I Agree to acknowledge agreement with our Terms and Conditions.");
		theForm.IAgree.focus();
		return false;
	}
	return true;
}
function submitForm(){
	if(validate(document.signup_form)){
		document.signup_form.submit();
	}
}