//-------------------------------------------------------
// Some utility functions. Requires Mochikit.
//-------------------------------------------------------

function getAbsUrl (url) {
	return 'http://' + document.location.hostname + url;
}

function doJSONRequest (relative_url, postdata) {
	if (!postdata) {
		postdata = {};
	}
	
	var url = getAbsUrl(relative_url);
	return loadJSONDoc(url, postdata);
}