By using Java scripting how can compare database value to Forms value?

i develop portal form n want to compare field that is Issued quantity with available quantity through java scripting.please send me syntax with an example.
problem:
if issued quantity is greater than available Quantity then appear alert message
Thanks,
Sadaf

this is the false forum for you. Try it in the database forum e.g.

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Using Java Script to set cookies of a JSP form

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<td><input type=text name="A" ></td>
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Doesn't work consistently.
Here is the file modified with your script:
https://www.box.com/s/09dzlu2kmiv7uziqef7j
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