function _CF_onError(form_object, input_object, object_value, error_message)
{
		alert(error_message);
		input_object.focus();
		return false;

}



function _CF_hasValue(obj, obj_type)
{
	if (obj_type == "TEXT" || obj_type == "PASSWORD")
	{
		if (obj.value.length == 0) 
			return false;
		else 
			return true;
		}
	else if (obj_type == "SELECT")
	{
		for (i=0; i < obj.length; i++)
		{
			if (obj.options[i].selected)
			return true;
		}

		return false;
	}
	else if (obj_type == "SINGLE_VALUE_RADIO" || obj_type == "SINGLE_VALUE_CHECKBOX")
	{

		if (obj.checked)
			return true;
		else
	 		return false;	
	}
	else if (obj_type == "RADIO" || obj_type == "CHECKBOX")
	{
		for (i=0; i < obj.length; i++)
		{
			if (obj[i].checked)
			return true;
		}

	 	return false;	
	}
}



function _CF_checkdate(object_value)
	{
	//Returns true if value is a date format or is NULL
	//otherwise returns false	

	if (object_value.length == 0)
		return true;

	//Returns true if value is a date in the mm/dd/yyyy format
	isplit = object_value.indexOf('/');

	if (isplit == -1 || isplit == object_value.length)
		return false;

	sMonth = object_value.substring(0, isplit);

	if (sMonth.length == 0)
		return false;

	isplit = object_value.indexOf('/', isplit + 1);

	if (isplit == -1 || (isplit + 1 ) == object_value.length)
		return false;

	sDay = object_value.substring((sMonth.length + 1), isplit);

	if (sDay.length == 0)
		return false;

	sYear = object_value.substring(isplit + 1);

	if (!_CF_checkinteger(sMonth)) //check month
		return false;
	else
	if (!_CF_checkrange(sMonth, 1, 12)) //check month
		return false;
	else
	if (!_CF_checkinteger(sYear)) //check year
		return false;
	else
	if (!_CF_checkrange(sYear, 0, 9999)) //check year
		return false;
	else
	if (!_CF_checkinteger(sDay)) //check day
		return false;
	else
	if (!_CF_checkday(sYear, sMonth, sDay)) // check day
		return false;
	else
		return true;
	}



function _CF_checkday(checkYear, checkMonth, checkDay)
	{

	maxDay = 31;

	if (checkMonth == 4 || checkMonth == 6 ||
			checkMonth == 9 || checkMonth == 11)
		maxDay = 30;
	else
	if (checkMonth == 2)
	{
		if (checkYear % 4 > 0)
			maxDay =28;
		else
		if (checkYear % 100 == 0 && checkYear % 400 > 0)
			maxDay = 28;
		else
			maxDay = 29;
	}

	return _CF_checkrange(checkDay, 1, maxDay); //check day
	}



function _CF_checkinteger(object_value)
	{
	//Returns true if value is a number or is NULL
	//otherwise returns false	

	if (object_value.length == 0)
		return true;

	//Returns true if value is an integer defined as
	// having an optional leading + or -.
	// otherwise containing only the characters 0-9.
	var decimal_format = ".";
	var check_char;

	//The first character can be + -blank or a digit.
	check_char = object_value.indexOf(decimal_format)
	//Was it a decimal?
	if (check_char < 1)
	return _CF_checknumber(object_value);
	else
	return false;
	}



function _CF_numberrange(object_value, min_value, max_value)
	{
	// check minimum
	if (min_value != null)
	{
		if (object_value < min_value)
		return false;
	}

	// check maximum
	if (max_value != null)
	{
	if (object_value > max_value)
		return false;
	}
	
	//All tests passed, so...
	return true;
	}



function _CF_checknumber(object_value)
	{
	//Returns true if value is a number or is NULL
	//otherwise returns false	

	if (object_value.length == 0)
		return true;

	//Returns true if value is a number defined as
	// having an optional leading + or -.
	// having at most 1 decimal point.
	// otherwise containing only the characters 0-9.
	var start_format = " .+-0123456789";
	var number_format = " .0123456789";
	var check_char;
	var decimal = false;
	var trailing_blank = false;
	var digits = false;

	//The first character can be + - .blank or a digit.
	check_char = start_format.indexOf(object_value.charAt(0))
	//Was it a decimal?
	if (check_char == 1)
		decimal = true;
	else if (check_char < 1)
		return false;
		
	//Remaining characters can be only . or a digit, but only one decimal.
	for (var i = 1; i < object_value.length; i++)
	{
		check_char = number_format.indexOf(object_value.charAt(i))
		if (check_char < 0)
			return false;
		else if (check_char == 1)
		{
			if (decimal)		// Second decimal.
				return false;
			else
				decimal = true;
		}
		else if (check_char == 0)
		{
			if (decimal || digits)	
				trailing_blank = true;
		// ignore leading blanks

		}
			else if (trailing_blank)
			return false;
		else
			digits = true;
	}	
	//All tests passed, so...
	return true
	}



function _CF_checkrange(object_value, min_value, max_value)
	{
	//if value is in range then return true else return false

	if (object_value.length == 0)
		return true;


	if (!_CF_checknumber(object_value))
	{
	return false;
	}
	else
	{
	return (_CF_numberrange((eval(object_value)), min_value, max_value));
	}
	
	//All tests passed, so...
	return true;
	}
	
function _CF_checkaction(_CF_this)
{

	if(!_CF_hasValue(_CF_this.First_Name, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.First_Name, _CF_this.First_Name.value, "First Name is a required field."))
		{
			return false; 
		}
	}

	if(!_CF_hasValue(_CF_this.Last_Name, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.Last_Name, _CF_this.Last_Name.value, "Last Name is a required field."))
		{
			return false; 
		}
	}

	if(!_CF_hasValue(_CF_this.Title, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.Title, _CF_this.Title.value, "Title is a required field."))
		{
			return false; 
		}
	}
	
	if(!_CF_hasValue(_CF_this.Telephone, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.Telephone, _CF_this.Telephone.value, "Telephone is a required field."))
		{
			return false; 
		}
	}
	
	if(!_CF_hasValue(_CF_this.Email, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.Email, _CF_this.Email.value, "Email is a required field."))
		{
			return false; 
		}
	}
	
	if(!_CF_hasValue(_CF_this.Company_Name, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.Company_Name, _CF_this.Company_Name.value, "Company Name is a required field."))
		{
			return false; 
		}
	}
	
	if(!_CF_hasValue(_CF_this.Address1, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.Address1, _CF_this.Address1.value, "Address is a required field."))
		{
			return false; 
		}
	}
	
	if(!_CF_hasValue(_CF_this.City, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.City, _CF_this.City.value, "City/Town is a required field."))
		{
			return false; 
		}
	}
	
	if(!_CF_hasValue(_CF_this.State, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.State, _CF_this.State.value, "State/Province is a required field."))
		{
			return false; 
		}
	}
	
	if(!_CF_hasValue(_CF_this.Zip, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.Zip, _CF_this.Zip.value, "Zip/Postal Code is a required field."))
		{
			return false; 
		}
	}
	
	if(!_CF_hasValue(_CF_this.Country, "TEXT" )) 
	{
		if(!_CF_onError(_CF_this, _CF_this.Country, _CF_this.Country.value, "Country is a required field."))
		{
			return false; 
		}
	}

	return true;

}