public Integer getNextSco(String recentId) {
// TODO:gs make method faster by chaching lmsBean, but when to set out of date?
LMSDataFormBean lmsDataBean = new LMSDataFormBean();
lmsDataBean.setItemID(recentId);
lmsDataBean.setLmsAction("get");
odatahandler = new LMSDataHandler(scormManager, lmsDataBean, scormSettingsHandler);
LMSResultsBean lmsBean = odatahandler.getResultsBean();
String[][] pretable = lmsBean.getPreReqTable();
String nextNavScoId = "-1";
for(int i=0; i < pretable.length; i++){
if(pretable[i][0].equals(recentId) && (i != pretable.length-1)){