QTY entry help

[dreamdragon]

HI all
I've got a cart page with this code in it :-

<%

Sub AddToCartForm
Response.Write "<form action='addtocart.asp' method='get'>" &_
"<input type='text' name='qty' value='1' size='3'>" &_
"<input type='hidden' name='Price' value='" & FormatNumber(myRS("Price"),2) &_
"'><input type='hidden' name='ProductID' value='" & myRS("ProductID") &_
"'><input type='hidden' name='CartID' value='" & CartID &_
"'><input type='submit' value='add'></form>"
End Sub

%>
the prob is i want the user to not be able to enter a null entry in the text box ,i.e '0'
can any one help improve my coding
cheers

[D3mon]

For real-time validation, you'd need to use javascript to check the value when it is changed (onChange), otherwise just check it on the target page of the formand send them back if its not right.