// '프로젝트부' 시작 -->
function pro(n) {
    for(var i = 1; i < 3; i++) {
        obj = document.getElementById('pro'+i);
        img = document.getElementById('pro_button'+i);
        if ( n == i ) {
            obj.style.display = "block";
                        img.height = 23;
            img.src = "image/tab_pro0"+i+"_on.gif";    
        } else {
            obj.style.display = "none";
                        img.height = 23;
            img.src = "image/tab_pro0"+i+"_off.gif";
        }
    }
}
// '프로젝트부' 끝 -->

// '해운사업부' 시작 -->
function oce(n) {
    for(var i = 1; i < 3; i++) {
        obj = document.getElementById('oce'+i);
        img = document.getElementById('oce_button'+i);
        if ( n == i ) {
            obj.style.display = "block";
                        img.height = 23;
            img.src = "image/tab_oce0"+i+"_on.gif";    
        } else {
            obj.style.display = "none";
                        img.height = 23;
            img.src = "image/tab_oce0"+i+"_off.gif";
        }
    }
}
// '해운사업부' 끝 -->

// '항공사업부' 시작 -->
function air(n) {
    for(var i = 1; i < 3; i++) {
        obj = document.getElementById('air'+i);
        img = document.getElementById('air_button'+i);
        if ( n == i ) {
            obj.style.display = "block";
                        img.height = 23;
            img.src = "image/tab_air0"+i+"_on.gif";    
        } else {
            obj.style.display = "none";
                        img.height = 23;
            img.src = "image/tab_air0"+i+"_off.gif";
        }
    }
}
// '항공사업부' 끝 -->