individual quantities per attribute how ?

[Guest]

I have a product that i sell in 3 colours

i only stop so many of each colour, but i dont want to do three seperate listings for each colour, i want to be able to use attributes with drop down so customer selects the relevant colour, the problem is i cant enter the quantity per colour anywhere and one colour always sells faster than others.

 

Is there any hacks/contributions etc that i can use to overcome this problem and be able to set qty as something like the following:-

 

Red:10

Blue:15

Green:12

 

and then when customer buys a red item it gets deducted from that particular qty

 

at present the only way i have of doing this is to enter the number of items altogether :(

[Guest]

searching would have revealed that most use qtpro, if you have questions on qtpro find the contribution support thread prior to posting any questions on it, read the support thread then ask the questions in qtpro contribution