{{ myvariable }}

<script language="javascript">
var anchor = "{{ myvariable }}";
$("a#"+anchor).click({'an': anchor}, function(event) {
alert(event.data.an);
});
</script>

<script language="javascript">
$("a#"+"{{ myvariable }}").click(function(t) {
alert("{{ myvariable }}");
});
</script>

.on('click', function (){