JQuery find child element inner text and replace with IMG HTML

JQuery find child element inner text and replace with IMG HTML

I need a little help with a Javascript function I am creating. In essence,
I need to loop through a set of DIVs with class .DetailRow and find a
child DIV's content (inner text). If this text is matched to a variable,
then I need to replace this inner text with an IMG HTML statement.
BTW I am kinda new at this (4 months old!) so apologies if the issue is
simple, but I have tried a few combos and I am stuck.
Here's the HTML:
<div class="DetailRow" style="display: ">..</div>
<div class="DetailRow" style="display: ">..</div>
<div class="DetailRow" style="display: ">
<div class="Label">Availability:</div>
<div class="Value">in stock + Free Shipping</div>
</div>
Example, if I find "in stock" in the LABEL inner text, I want to replace
it with the value of the variable "instock" which is an IMG HTML
statement. See my code attempt below.
<script type="text/javascript">
$(window).load(function(){
var instock = '<img src="https://linktoimgfolder/instock.gif"
title="Product available, usually ships 24hrs to 48hrs after order
receipt" style="margin-top:-3px;">';
var lowstock = '<img src="https://linktoimgfolder/lowstock.gif"
title="Product stcok low, order today so you do not miss out">';
var nostock = '<img src="https://linktoimgfolder/outstock.gif"
title="Product out of stock, could ship 1 to 2 weeks after order
receipt">';
$('div.DetailRow')each(function(){
if (indexOf($(this).childNodes[1].innerHTML, "in stock") > 0) {
$(this).childNodes[2].innerHTML = "";
$(this).childNodes[2].innerHTML = instock;
} else if (indexOf($(this).childNodes[1].innerHTML, "low stock") >
0) {
$(this).childNodes[2].innerHTML = "";
$(this).childNodes[2].innerHTML = lowstock;
} else {
$(this).childNodes[2].innerHTML = "";
$(this).childNodes[2].innerHTML = nostock;
};
});
});
</script>&#8203;
By the way,m I cannot match text exactly as the text beyond the "=" will
change from time to time, thus I am trying indexOf.
Many thanks in advance for your assistance!
M