http://angeletaferrer.org/modules/mod_jevents_cal/tmpl/ext/assets/js/calnav.js

1function navLoaded(elem, modid) {
2	var myspan = document.getElementById("testspan" + modid);
3	var modbody = myspan.parentNode;
4	modbody.innerHTML = elem.innerHTML;
5}
6function callNavigation(link) {
7	var body = document.getElementsByTagName('body')[0];
8	if (!document.getElementById('calnav')) {
9		myiframe = document.createElement('iframe');
10		myiframe.setAttribute("name", "calnav");
11		myiframe.setAttribute("id", "calnav");
12		myiframe.style.display = "none";
13		body.appendChild(myiframe);
14	}
15	else {
16		myiframe = document.getElementById('calnav');
17	}
18	myiframe.setAttribute("src", link);
19}