//NII検索項目
var niifield = new Array("keyword", "title", "author", "publisher", "subject", "language", "isbn", "issn", "ncid", "listLimit");


//画面再読み込み時
window.onload = function(){
    var databasetarget = document.getElementById("databasetarget-nii");
    if (databasetarget != null && databasetarget.checked) {
        selectNiiField(true);
    }

    //キーワード項目にフォーカスを与える
    //アンカーが指定されているときはフォーカスを当てない
    if (location.hash == "") {
        var keyword = document.getElementById("keyword");
        if (keyword != null) {
            keyword.focus();
        }
    }
}

//NACSIS項目選択時
function selectNiiField(value){
    for (i = 0; i < document.forms.length; i++) {
        if (document.forms[i].name == "InputActionForm" || document.forms[i].name == "LocalResultActionForm") {
            var form = document.forms[i];
            break;
        }
    }
    
    if (form) {
        for (i = 0; i < form.elements.length; i++) {
            element = form.elements[i];
            
            //submitボタンは無視
            if (element.type == "submit") {
                continue;
            }
            
            //hiddenタグは無視	      
            if (element.type == "hidden") {
                continue;
            }
            
            //対象データベースは無視
            if (element.name == "databasetarget") {
                continue;
            }
            
            //資料の種類は図書、雑誌以外は選択不可	
            if (element.name == "searchtarget" || element.name == "fulltext") {
                if (value) {
                    if (element.id == "searchtarget-BK" || element.id == "searchtarget-MG") {
                        continue;
                    }
                    else {
                        document.getElementById(element.id).checked = "";
                        document.getElementById(element.id).disabled = "disabled";
                        var labelElement = document.getElementById(element.id + "-label");
                        labelElement.className = "searchtarget-disable";
                    }
                }
                else {
                    document.getElementById(element.id).disabled = "";
                    var labelElement = document.getElementById(element.id + "-label");
                    labelElement.className = "";
                }
                continue;
            }
            
            //NII項目かどうか判定
            for (j = 0; j < niifield.length; j++) {
                if (niifield[j] == element.name) {
                    isNiiField = true;
                    break;
                }
                isNiiField = false;
            }
            
            //NII項目以外の項目は非表示
            if (document.getElementById("f-" + element.name)) {
                if (value && !isNiiField) {
                    document.getElementById("f-" + element.name).style.display = "none";
                }
                else {
                    document.getElementById("f-" + element.name).style.display = "";
                }
                continue;
            }
            
            //キーワードのandor項目は選択不可
            if (element.name == "keywordandor" && form.keywordandor.options) {
                if (value) {
                    form.keywordandor.options[0].selected = "selected";
                    form.keywordandor.disabled = "disabled";
                }
                else {
                    form.keywordandor.disabled = "";
                }
            }
            
            //タイトルのandor項目は選択不可
            if (element.name == "titleandor" && form.titleandor.options) {
                if (value) {
                    form.titleandor.options[0].selected = "selected";
                    form.titleandor.disabled = "disabled";
                }
                else {
                    form.titleandor.disabled = "";
                }
            }
            
            //編著者名のandor項目は選択不可
            if (element.name == "authorandor" && form.authorandor.options) {
                if (value) {
                    form.authorandor.options[0].selected = "selected";
                    form.authorandor.disabled = "disabled";
                }
                else {
                    form.authorandor.disabled = "";
                }
            }
            
            //件名のandor項目は選択不可
            if (element.name == "subjectandor" && form.subjectandor.options) {
                if (value) {
                    form.subjectandor.options[0].selected = "selected";
                    form.subjectandor.disabled = "disabled";
                }
                else {
                    form.subjectandor.disabled = "";
                }
            }
        }
        //一覧表示項目のソート順を非表示
        if (document.getElementById("display-listOrder")) {
            if (value) {
                document.getElementById("display-listOrder").style.display = "none";
            }
            else {
                document.getElementById("display-listOrder").style.display = "";
            }
        }
    }
}