//3個合体
function marge3(){
    var list1 = $('#list1').val();
    list1 = list1.replace("\r", "");
    list1 = list1.split(/\n/);
    
    var list2 = $('#list2').val();
    list2 = list2.replace("\r", "");
    list2 = list2.split(/\n/);
    
    var list3 = $('#list3').val();
    list3 = list3.replace("\r", "");
    list3 = list3.split(/\n/);

    var str = "";
    for ( var i in list1) {
        for (var k in list2) {
            for (var m in list3) {
                if (list1[i] && list2[k] && list3[m]) {
                    str = str + list1[i] + " " + list2[k] + " " + list3[m] + "\n";
                }
            }
        }
    }
    $('#list4').val(str);
}

//2個合体
function marge2(){
    var list1 = $('#list1').val();
    list1 = list1.replace("\r", "");
    list1 = list1.split(/\n/);
    
    var list2 = $('#list2').val();
    list2 = list2.replace("\r", "");
    list2 = list2.split(/\n/);
    
    var str = "";
    for ( var i in list1) {
        for (var k in list2) {
            if (list1[i] && list2[k]) {
                str = str + list1[i] + " " + list2[k] + "\n";
            }
        }
    }
    $('#list4').val(str);
}

//サンプル挿入
function sample(){
    $('#list1').val("居酒屋\n焼き鳥\n飲み会\n宴会");
    $('#list2').val("広島\n岡山\n山口");
    $('#list3').val("美味しい\n評判\n有名\nおすすめ");
}