function ChangeStandard(toShow){

        var divs = document.getElementById("container").getElementsByTagName("div");
        
        for (var i=0; i< divs.length; i++){
            var id = new String(divs[i].id);
            if (id.indexOf(toShow) >= 0){
                divs[i].style.display = "block";
            }
            else{
                divs[i].style.display = "none";
            }
        }
        
        var title = document.getElementById("learningstandard");
        var text = "";
        switch (toShow){
            case "11":
                text = "SCORM 1.1"
            break;
            case "12":
                text = "SCORM 1.2"
            break;
            case "2nd":
                text = "SCORM 2004 2nd Edition"
            break;
            case "3rd":
                text = "SCORM 2004 3rd Edition"
            break;
            case "4th":
                text = "SCORM 2004 4th Edition"
            break;
            default:
                alert("error");
        }
        title.innerHTML = text;
    }