today I have a code from my script but only make user to write down input to the fill with any value, so now I want to make it fixed
here is the original code
<div class="control-group">
<label for="input01" class="control-label">Enter the Amount <i class="error_fnt">*</i></label>
<div class="controls">
<input type="text" name="amount" class="txtbig" value="<AJDF:output>$errval.amount</AJDF:output>">
</div></div>
the result above look like this :
but I want to modify the above code so that we can select a fixed value like this as a dropdown menu but the fill able to receive an input:

thank you so much