function getRef(form) {
    var req = new JsHttpRequest();
    var value = get_form(form);
    req.onreadystatechange = function() {
        if (req.readyState == 4) {
			var msg = document.getElementById('div_msg_d');

		msg.innerHTML = req.responseJS.text;
	    if(req.responseJS.type == 'error'){
			msg.style.cssText = 'background:#FFF; border:1px solid red; padding:3px; color:red;';
	    }
	    else {
		msg.style.cssText = 'background:#FFF; padding:3px; color:green;';

	    }
	    if(req.responseText){
		document.getElementById('debug').innerHTML = req.responseText;
	    }
        }
    }
     req.open(null, '/api/diss_ref/', true);
    req.send(value);
}