function speciaLCase(e,form){
	if((e.name=="CardName")||(e.name=="CardNumber")||(e.name=="CardExpiryMonth")||(e.name=="CardExpiryYear")){
		if(((form.CardName.value.length <= 0)||(form.CardNumber.value.length <= 0)||(form.CardExpiryMonth.value.length <= 0)||(form.CardExpiryYear.value.length <= 0))
		 && ((form.CardName.value.length > 0)||(form.CardNumber.value.length > 0)||(form.CardExpiryMonth.value.length > 0)||(form.CardExpiryYear.value.length > 0))){
			return "Please enter all Credit Card Information.";
		}
		if((form.CardName.value.length > 0)&&(form.CardNumber.value.length > 0)&&(form.CardExpiryMonth.value.length > 0)&&(form.CardExpiryYear.value.length > 0)){
			if(!isCardDateValid(form.CardExpiryYear.value, form.CardExpiryMonth.value)){
				return "The Credit Card has Expired.";
			}
			if(isCardNumValid(form.CardNumber.value)){
				return "The Credit Card Number is an invalid format.";
			}
		}
	}
	if((e.name=="CheckNumber")||(e.name=="BankName")||(e.name=="RoutingNumber")||(e.name=="CheckingAccountNumber")){
		var echeckErrStr="";
		if(((form.CheckNumber.value.length <= 0)||(form.BankName.value.length <= 0)||(form.RoutingNumber.value.length <= 0)||(form.CheckingAccountNumber.value.length <= 0))
		 && ((form.CheckNumber.value.length > 0)||(form.BankName.value.length > 0)||(form.RoutingNumber.value.length > 0)||(form.CheckingAccountNumber.value.length > 0))){
			echeckErrStr+="Please enter all eCheck Information.\n";
		}
		if(form.CheckNumber.value.length<=0)
		{
			echeckErrStr+="- Missing Check Number.\n";
		}
		if(form.BankName.value.length<=0)
		{
			echeckErrStr+="- Missing Bank Name.\n";
		}
		if(form.RoutingNumber.value.length!=9)
		{
			echeckErrStr+="- Routing Number must be nine (9) digits.\n";
		}
		if(form.CheckingAccountNumber.value.length<=0)
		{
			echeckErrStr+="- Missing Checking Account Number.\n";
		}
		if(echeckErrStr.length>0) echeckErrStr=echeckErrStr.substring(0,echeckErrStr.length-2);
		return echeckErrStr;
	}
	if((e.name=="POName")||(e.name=="PONumber")){
		if(((form.POName.value.length<=0)||(form.PONumber.value.length<=0))
		 && ((form.POName.value.length>0)||(form.PONumber.value.length>0))){
			return "Please enter all Customer Order Information.";
		}
	}
	if((form.CardName.value.length <= 0)&&(form.CardNumber.value.length <= 0)&&(form.CardExpiryMonth.value.length <= 0)&&(form.CardExpiryYear.value.length <= 0)
	 && (form.CheckNumber.value.length <= 0)&&(form.BankName.value.length <= 0)&&(form.RoutingNumber.value.length <= 0)&&(form.CheckingAccountNumber.value.length <= 0)
	 && (form.POName.value.length <= 0)&&(form.PONumber.value.length <= 0)){
		return "Please enter payment method Information.";	
	}
	return "";
}
function stripChar(sValue,sChar){
	var i, tempChar, buildString;
	buildString = ""
	for(var i=0; i<sValue.length; i++){
		tempChar = sValue.charAt(i);
		if(tempChar != sChar){
			buildString = buildString + tempChar;
		}
	}
	return buildString;
}

function isCardDateValid(year,month){
	var dateCheck, now;
	if(year.length == 2){
		if(parseInt(year) < 50){
			year = "20" + year;
		}
	}
	now = new Date();
	dateCheck = new Date(year, month);
	if(now > dateCheck){
		return false;
	}else{
		return true;
	}
}

function isCardNumValid(num){
	var num1, num2, tempNum;
	if(!isNumber(num)){
		return true;
	}
	num1 = ""
	if(!(num.length%2==0)){
		for(var j=0; j < num.length; j++){
			if((j+1)%2==0){
				tempNum = 2 * num.charAt(j);
			}else{
				tempNum = 1 * num.charAt(j);
			}
			num1 = num1 + tempNum.toString();
		}
	}else{
		for(var j=0; j < num.length; j++){
			if((j+1)%2==0){
				tempNum = 1 * num.charAt(j);
			}else{
				tempNum = 2 * num.charAt(j);
			}
			num1 = num1 + tempNum.toString();
		}
	}
	num2 = 0;
	for (var j = 0; j < num1.length; j++){
		num2 = num2 + parseInt(num1.charAt(j));
	}
	if(num2%10==0){
		return false;
	}else{
		return true;
	}
}

function isNumber(value){
	for (var i=0; i < value.length; i++){
		a = parseInt(value.charAt(i));
		if(isNaN(a)){
			return false;			
			break;
		}
	}
	return true;
}

function sfCheck(form){
	var e, title, empty_fields, char_check, invalid_card, month, year, invalid_date, eMail, invalid_eMail 
	var iQuantity, quantity_check, checkSpecial, tempError, special_Error, msg, upperLine, lowerLine
	var num, invalid_phoneNumber, passwd_mismatch
	msg = "";
	empty_fields = "";
	char_check = "";
	special_Error = "";
	tempError = "";
	num = form.length
	for (var i = 0; i < form.length; i++){
		e = form.elements[i]
		if((e.title == null)||(e.title == "")){
			title = e.name;
		}
		else{
			title = e.title;
		}
		if(((e.type == "text") || (e.type == "textarea")||(e.type == "password")) && !e.special && !e.disabled){
			if(e.value.length <= 0 && !e.optional && (e.name.indexOf("Ship") == -1)){
				empty_fields += "\n            " + title;
				continue;
			}
			if(e.number){
				num = e.value;
				num = stripChar(num, ".");
				num = stripChar(num, ",");
				if(!isNumber(num)){
					char_check += "\n             " + title;
				}
			}
			if(e.creditCardNumber){
				e.value = stripChar(e.value, " "); 
				e.value = stripChar(e.value, "-"); 
				invalid_card = isCardNumValid(e.value);
			}
			
			if((e.creditCardExpMonth)||(e.creditCardExpYear)){
				if(e.creditCardExpMonth){
					month = e.value;
					month = stripChar(month, " ")
					if(!isNumber(month)){
						invalid_date = true;
						month = null;
					}
				}
				if(e.creditCardExpYear){
					year = e.value;
					year = stripChar(year, " ")
					if(!isNumber(year)){
						invalid_date = true;
						year = null;
					}
				}
				if((month != null) && (year != null)){
					if(!isCardDateValid(year, month)){
						invalid_date = true;
					}	
				}
			}
			if(e.eMail){
				eMail = e.value;
				if((eMail.indexOf("@") != -1) && (eMail.indexOf(".") != -1)){
					invalid_eMail = false;
				}
				else{
					invalid_eMail = true;
				}
			}
                        if(e.name == "txtEmail"){
				eMail = e.value;
				if((eMail.indexOf("@") != -1) && (eMail.indexOf(".") != -1)){
					invalid_eMail = false;
				}
				else{
				  
					invalid_eMail = true;
				}
			}	
			if(e.name == "txtFriend"){
				eMail = e.value;
				if((eMail.indexOf("@") != -1) && (eMail.indexOf(".") != -1)){
					invalid_eMail = false;
				}
				else{
				  
					invalid_eMail = true;
				}
			}	

			if(e.phoneNumber){
				num = e.value;
				num = stripChar(num, " ");
				num = stripChar(num, "-");
				num = stripChar(num, "+");
				if(num.length < 10){
					invalid_phoneNumber = true;
				}	
			}
		}
		if(e.quantityBox){
			iQuantity = e.value;
			if(!isNumber(iQuantity)){
				quantity_check = true;
			}
			if(parseInt(iQuantity) < 0){
				quantity_check = true;
			}
			if((iQuantity) < 1){
				quantity_check = true;
			}

		}
		if(e.password){
			if(form.Password.value != form.Password2.value){
					passwd_mismatch = true;
			}
		}
		if(e.special){
			checkSpecial = speciaLCase(e, form);
			if(tempError != checkSpecial){
				special_Error = special_Error + checkSpecial
			}
			tempError = checkSpecial;
		}
		if(e.type == "select-one" && !e.optional){
			if(e.value == ""){
				empty_fields += "\n            " + title;
				continue;
			}
		}
	}
	
	if(!empty_fields && !char_check && !special_Error && !invalid_card && !invalid_date && !invalid_eMail && !quantity_check && !invalid_phoneNumber && !passwd_mismatch){return true}
	
	msg = "The form was not submited due to the following error(s).\n";
	
	upperLine = "\n_________________________________________________________\n\n";
	lowerLine = "_________________________________________________________\n";
	
	if(empty_fields){
		msg += upperLine;
		msg += "The following field(s) must be filled in:\n";
		msg += lowerLine;
		msg += empty_fields;
	}
	if(char_check){
		msg += upperLine;
		msg += "The following field(s) need a numeric value:\n";
		msg += lowerLine;
		msg += char_check;
	}
	if(quantity_check){
		msg += upperLine;
		msg += "Please Enter a Positive Integer.\n"
		msg += lowerLine;
	}
	if(invalid_card){
		msg += upperLine;
		msg += "The Credit Card Number is an invalid format.\n";
		msg += lowerLine;
	}
	if(invalid_date){
		msg += upperLine;
		msg += "The Credit Card has Expired.\n";
		msg += lowerLine;
	}
	if(invalid_eMail){
		msg += upperLine;
		msg += "The Email Address is in an invalid format.\n";
		msg += lowerLine;
	}
	if(invalid_phoneNumber){
		msg += upperLine;
		msg += "Please enter a valid Phone Number with area code.\n";
		msg += lowerLine;
	}
	if(special_Error){
		msg += upperLine;
		msg += special_Error + "\n";
		msg += lowerLine;
	}
	if(passwd_mismatch){
		msg += upperLine;
		msg += "Your passwords did not match. Please enter them again.\n";
		msg += lowerLine;
	}		
	alert(msg);
	return false;
}