How to set up quatites as a drop down menu - help please

[johnmoore84]

Hi everyone im trying to set up part of my website so that you click on the item your interested in, in this case ' 30 - 40cm Green Leylandii (Cupressocyparis)" and then you select from the drop down menu the quanitity you want ie 6, 10, 15, 20, 25, 30 etc and depending in which quanitity you select the price increases acordingly.

I have set it up so the price shows £1.80 and then you have to select the quanity and it shows to total in the cart, if you select a large quanity ie 100 x leylandii then the price is £1.80 each but if you only slect 10 the price works out as slightly more per tree.

Now I thought I had sorted this out but have realised a problem. If you dont select a quantity from the drop down menu and just type in a quanity box ie 3 then it just does 3 at £1.80 which I dont want to do. Basicaly it would be good if i could turn off the quantity box on teh product page so that they have to us trhe drop down menu.

Has anyone got any ideas or advise on how to overcome the problem i have, the link below goes to the product page which may make it clearer,

Thank in advance.

John