aston,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
a.a{
color: #FF3300;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
$(function() {
$("table").on("contextmenu", "a.a", function(event) {
event.preventDefault()
})
});
</script>
</head>
<body>
<table>
<tr>
<td><a href="" class="a">1</a></td>
<td><a href="" class="a">2</a></td>
<td><a href="" class="a">3</a></td>
<td><a href="" class="a">4</a></td>
<td><a href="" class="a">5</a></td>
</tr>
<tr>
<td><a href="" class="a">1</a></td>
<td><a href="" class="a">2</a></td>
<td><a href="" class="a">3</a></td>
<td><a href="" class="a">4</a></td>
<td><a href="" class="a">5</a></td>
</tr>
<tr>
<td><a href="" class="a">1</a></td>
<td><a href="" class="a">2</a></td>
<td><a href="" class="a">3</a></td>
<td><a href="" class="a">4</a></td>
<td><a href="" class="a">5</a></td>
</tr>
</table>
<a href="" class="test">1</a>
<a href="" class="test">2</a>
<a href="" class="test">3</a>
<a href="" class="test">4</a>
<a href="" class="test">5</a>
<table>
<tr>
<td><a href="" class="a">1</a></td>
<td><a href="" class="a">2</a></td>
<td><a href="" class="a">3</a></td>
<td><a href="" class="a">4</a></td>
<td><a href="" class="a">5</a></td>
</tr>
<tr>
<td><a href="" class="a">1</a></td>
<td><a href="" class="a">2</a></td>
<td><a href="" class="a">3</a></td>
<td><a href="" class="a">4</a></td>
<td><a href="" class="a">5</a></td>
</tr>
</table>
</body>
</html>