I need help with HTML Javascript form?

Amber Keys

New member
I have a form:

<form>
<p>Enter Quantity:</p> <input type="text" name="quantity" />
<input type="hidden" name="available_quantity">
<input type="submit" value="submit">
</form>

I'm trying to figure out how I can prevent someone from entering a number that is higher than the "available_quantity" value. I'm lost!! can anyone help??
 
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