function validateData(){
	var alerts = "";
	
	//get vars from form
	var FName		= document.submission.FName.value;
	var LName		= document.submission.LName.value;
	//var Affiliation		= document.submission.Affiliation.value;
	var Address		= document.submission.Address.value;
	var Country		= document.submission.Country.value;
	var Phone 		= document.submission.Phone.value;
	var Email 		= document.submission.Email.value;
	//var Workshop_Symposium_Fee 	= document.submission.Workshop_Symposium_Fee.value;
	//var Workshop_Fee 		= document.submission.Workshop_Fee.value;
	//var Symposium_Fee 		= document.submission.Symposium_Fee.value;
	//var Exhibition_Fee 		= document.submission.Exhibition_Fee.value;
	var Total_Due 		= document.submission.Total_Due.value;
	var Credit_Card 		= document.submission.Credit_Card.selectedIndex;
	var Credit_Card_Number 		= document.submission.Credit_Card_Number.value;
	var Credit_Expiration 		= document.submission.Credit_Expiration.value;
	var Total_Charges_Authorized 		= document.submission.Total_Charges_Authorized.value;

	var n = 0;
	if ( !FName ){
		alerts += "   " + (++n) + ". ";
		alerts += "First Name \r";
	}
	
	if ( !LName ){
		alerts += "   " + (++n) + ". ";
		alerts += "Authors \r";
	}
	
	
	if ( !Address ){
		alerts += "   " + (++n) + ". ";
		alerts += "Address \r";
	}
	
	if ( !Country ){
		alerts += "   " + (++n) + ". ";
		alerts += "Country \r";
	}
	
	if ( !Phone ){
		alerts += "   " + (++n) + ". ";
		alerts += "Phone \r";
	}
	
	if ( !Email ){
		alerts += "   " + (++n) + ". ";
		alerts += "Email \r";
	}
	
	if ( !Total_Due ){
		alerts += "   " + (++n) + ". ";
		alerts += "Total Due \r";
	}
	
	if ( Credit_Card == 0 ){
		alerts += "   " + (++n) + ". ";
		alerts += "Credit Card \r";
	}
	
	if ( !Credit_Card_Number ){
		alerts += "   " + (++n) + ". ";
		alerts += "Credit Card Number \r";
	}
	
	if ( !Credit_Expiration ){
		alerts += "   " + (++n) + ". ";
		alerts += "Credit Card Expiration Date\r";
	}
	
	if ( !Total_Charges_Authorized ){
		alerts += "   " + (++n) + ". ";
		alerts += "Total Charges Authorized \r";
	}
	
	if (alerts){
		if ( n == 1 ){
			alerts = "You missed the following item:      \r" + alerts;
		} else {
			alerts = "You missed the following " + n + " items:      \r" + alerts;
		}
	}
	
	if ( alerts ){
		alert(alerts);
		return false;
	} else {
		return true;
	}
}