Inserting Text Box Into A Form

I'm trying to create a form that allows me to modify the contents of list. When the user clicks on the modify button, it takes them to a page which displays the quantity of items they purchase, and allows them to update that quantity. So the quantity is shown in a textbox, and the content of the text box is drawn from a rs("content").

But the page is crashing when I run it. I'm having trouble getting the response.write textbox line to work. Here's the code:

response.write "<td align=right><input type="text" name="quantity"
value=" & rs("qty") & "></td>"

This is the line that is causing the page to crash. Can't figure out why. Can someone give me some insight into this?