/**
 * @author sangyoony
 */
function site_search_focus(){
    var shArea = document.getElementById('shArea');
    if(shArea.value == 'サイト内検索'){
        shArea.value = '';
    }
}

function site_search_blur(){
    var shArea = document.getElementById('shArea');
    if(shArea.value == ''){
        shArea.value = 'サイト内検索';
    }
}

function site_search_submit(){
    var shArea = document.getElementById('shArea');
    if(shArea.value == 'サイト内検索'){
        shArea.value = '';
    }
}