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_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_onError(form_object, input_object, object_value, error_message)
    {
        alert(error_message);
        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);
        isplit = object_value.indexOf('/', isplit + 1);

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

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

        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_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_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_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 selectNotBlank(obj)
{
	//get index
	var the_index = obj.selectedIndex;
	if (obj.options[the_index].value == " "){
		return false;
	}
	return true;
}