jQuery - need to update select list?

How can I modify my jquery setNewPrice function to also rebuild my QTY select list to correspond with the items in stock?
If I add another field called data-stock="10", can this be used to rebuild the my QTY drop down list?

Thanks in advance.

function setNewPrice(cnt){
		  var price = $("#spec1_grid"+cnt).find(":selected").data('price');
		  $("#price_grid"+cnt).html("Price $ "+price);

<div class="curvedbox styled-select">QTY&nbsp;&nbsp;
         	<select class="shop_qty" name="qty_grid2" id="qty_grid2" style.zindex="-6">
			<option value="1">1</option>
			<option value="2">2</option>
			<option value="3">3</option>
			<option value="4">4</option>
			<option value="5">5</option>
			<option value="6">6</option>
			<option value="7">7</option>
			<option value="8">8</option>
			<option value="9">9</option>
			<option value="10">10</option>

<div class="curvedbox styled-select">Sizes</br>
          <select class="shop_product" name="spec1_grid2" id="spec1_grid2"  onChange="setNewPrice('2')" style.zindex="-6">
			<option value="10" data-price="45.00" data-stock="10">10 - stock (10)</option>
			<option value="12" data-price="45.00" data-stock="30">12 - stock (30)</option>
			<option value="14" data-price="45.00" data-stock="30">14 - stock (30)</option>
			<option value="16" data-price="45.00" data-stock="30">16 - stock (30)</option>
			<option value="S" data-price="45.00" data-stock="30">S - stock (30)</option>
			<option value="M" data-price="45.00" data-stock="30">M - stock (30)</option>
			<option value="L" data-price="45.00" data-stock="0">L - stock (0)</option>
			<option value="XL" data-price="45.00" data-stock="20">XL - stock (20)</option>
			<option value="2XL" data-price="45.00" data-stock="10">2XL - stock (10)</option>          

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greetings sabecs, , I think I can see what you mean by  "used to rebuild the my QTY drop down list" .

But not sure about what you may want in the options.
So here is my version of your function from above, and it works for me in testing in laptop firefox -

<script>/* <![CDATA[ */

function setNewPrice(cnt){
var price = parseInt($("#spec1_grid"+cnt).find(":selected").data('stock'));
if (!price) {alert("OUT OF STOCK, no order"); return;}

opts = "";
for (var i=1; i < price; ++i){
    opts += '<option>'+i+'</option>';

price = $("#spec1_grid"+cnt).find(":selected").data('price');
$("#price_grid"+cnt).html("Price $ "+price);

/* ]]> */</script>

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And you do not need a value in an option if it is identical to the display, so this -
is the same as -
     <option value="1">1</option>

try this code, let me know if you have problems.

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sabecsAuthor Commented:
Thanks Slick812, that is perfect.
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