<script type="text/javascript">
$(document).ready (function autoHeight(){
var container = document.getElementById("body");
var radiframe = parent.document.getElementById("radioiframe");
var setHeight = Math.round(container.offsetHeight - radiframe.offsetHeight);
parent.$("#content").height(setHeight);
});
</script>

var height_calc = Math.round($("body").height() - parent.$("#radioiframe").height());

$(window).load(function setHeight(){
parent.$("#content").height(height_calc);
});