Retrieve rows older than 3 work days

[Tribal_01]

Using MySQL (without a server side technology) is there anyway to retrieve rows from a database which are older than 3 working days (Mon - Fri)?

The table looks like this:

CREATE TABLE `quotes` (
  `id` int(8) NOT NULL auto_increment,
  `q_id` varchar(5) collate latin1_general_ci NOT NULL default '',
  `customer_name` varchar(255) collate latin1_general_ci NOT NULL default '',
  `category` varchar(5) collate latin1_general_ci NOT NULL default '',
  `status` enum('Open','Closed','Awaiting Customer','Ordered') collate latin1_general_ci NOT NULL default 'Open',
  `q_recieved` varchar(10) collate latin1_general_ci NOT NULL default '',
  `q_finished` varchar(10) collate latin1_general_ci NOT NULL default '',
  PRIMARY KEY  (`id`)
)

The basic query I am trying to achieve is similar to:

SELECT 
	COUNT(`id`)
FROM 
	`quotes`
WHERE 
	`q_recieved` < (NOW() - 259200) 
	AND  `status` = 'Open'

However, the above only gets rows older than 3 days ago. So if I call this on a Monday then it will only gets rows older than the previous Friday, however I would like it to get rows older than the previous Wednesday. Likewise, if I call this query on a Thursday I would like to to retrieve rows older than the previous Tuesday.

Sorry if my explanation is weak, I am finding it really hard to describe. Basically, it should not take into account anything from a Saturday or Sunday.

[guido2004]

MySQL is server side technology

How about festivities? They aren't working days either. I guess you'll have to have a calendar table that indicates which are working days and which are not.

And why don't you use a DATE format for your date columns. It would make working with dates a lot easier.

[Tribal_01]

MySQL is server side technology

How about festivities? They aren't working days either. I guess you'll have to have a calendar table that indicates which are working days and which are not.

And why don't you use a DATE format for your date columns. It would make working with dates a lot easier.

Sorry, I meant server-side like php or asp.

Personally I would prefer to use the DATE format for the date columns however it is an old project written by someone else which I am having to edit.

How would I use a calendar table in MySQL?