<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento sin título</title>
<script type="text/javascript">
window.onload = function() {
document.onmousedown = function(event) {
var ev = event ? event : window.event,
evt = ev.target ? ev.target : ev.srcElement;
if (ev.button == 2 && evt.className == 'img') {
document.oncontextmenu = function() {return false;};
window.open('http://www.google.com');
} else if (ev.button == 2) document.oncontextmenu = function() {return true;};
};
};
</script>
<body>
<img src="" class="img" />
<img src="" class="img" />
<img src="" class="img" />
</body>
</html>