좌우이동하는 셀렉트박스에서 값 가져오기

function goRight(){
    var length = document.getElementById("source").options.length;

    if(document.getElementById("source").options.value != ""){
        var cnt = document.getElementById("result").options.length;
        for(var i=0;i<cnt;i++){
            if(document.getElementById("result").options[i].value == document.getElementById("source").value){
                return;
            }
        }
        var option1 = new Option(document.getElementById("source").value, document.getElementById("source").value)
        document.getElementById("result").options[cnt] = option1;
    }
}

function goLeft(){
    var length = document.getElementById("result").options.length;

    for(var i=0;i<length;i++){
        if(document.getElementById("result").options[i].selected){
            document.getElementById("result").options[i] = null;
            break;
        }
    }   
}

function goSave(pageNo){
    var selectedList = "";
    var length = document.frm.result.length;
    var count = 0;
    if (length != 0) {
            for (i=0;i<length;i++) {
                    if (count == 0) {
                        selectedList = document.frm.result.options[i].value;
                    }
                    else {
                        selectedList = selectedFlow + "," + document.frm.result.options[i].value;
                    }
                    count++;
               }
    }

}

selectedList에 list,list,list 형태로 저장.. 나중에 스플릿해서 쓰면 된다.