You are showing a table of records on a webpage and you want to highlight its alternate rows using JQuery.
First step is to add a simple css class for highlighting background color of table alter rows.
<style type="text/css">
.odd {background: #caf2fe;}
</style>
Second step is to add a typical JQuery ready function in which you need to add a single line of JQuery selector along with addClass function.
<script type="text/javascript">
$(document).ready(function(){
$("tr:odd").addClass("odd");
});
</script>