function hide_pricelist(){
document.getElementById('select_pla76').style.display = 'none';
document.getElementById('select_pla50').style.display = 'none';
document.getElementById('select_pla30').style.display = 'none';
document.getElementById('select_paper').style.display = 'none';
}


// 表示・非表示の切り替え
function disp76(){
document.getElementById('select_pla76').style.display = 'block';
document.getElementById('select_pla50').style.display = 'none';
document.getElementById('select_pla30').style.display = 'none';
document.getElementById('select_paper').style.display = 'none';
}

function disp50(){
document.getElementById('select_pla76').style.display = 'none';
document.getElementById('select_pla50').style.display = 'block';
document.getElementById('select_pla30').style.display = 'none';
document.getElementById('select_paper').style.display = 'none';
}

function disp30(){
document.getElementById('select_pla76').style.display = 'none';
document.getElementById('select_pla50').style.display = 'none';
document.getElementById('select_pla30').style.display = 'block';
document.getElementById('select_paper').style.display = 'none';
}

function disppaper(){
document.getElementById('select_pla76').style.display = 'none';
document.getElementById('select_pla50').style.display = 'none';
document.getElementById('select_pla30').style.display = 'none';
document.getElementById('select_paper').style.display = 'block';
}


function rover(num){

if (num==1){
document.getElementById('contents_description').style.backgroundImage='url(/images/top_gakubuchi_pla.jpg)';
document.getElementById('contents_link').href='/plastic_card/';
document.getElementById('pla').style.backgroundPosition='left top';
document.getElementById('paper').style.backgroundPosition='left -60px';
document.getElementById('goods').style.backgroundPosition='left -60px';
} else if (num==2){
document.getElementById('contents_description').style.backgroundImage='url(/images/top_gakubuchi_paper.jpg)';
document.getElementById('contents_link').href='/paper_card/';
document.getElementById('paper').style.backgroundPosition='left top';
document.getElementById('pla').style.backgroundPosition='left -60px';
document.getElementById('goods').style.backgroundPosition='left -60px';
} else if (num==3){
document.getElementById('contents_description').style.backgroundImage='url(/images/top_gakubuchi_goods.jpg)';
document.getElementById('contents_link').href='/option_goods/';
document.getElementById('goods').style.backgroundPosition='left top';
document.getElementById('paper').style.backgroundPosition='left -60px';
document.getElementById('pla').style.backgroundPosition='left -60px';
} else {
document.getElementById('contents_description').style.backgroundImage='url(/images/top_gakubuchi_pla.jpg)';
document.getElementById('contents_link').href='/plastic_card/';
document.getElementById('pla').style.backgroundPosition='left top';
document.getElementById('paper').style.backgroundPosition='left -60px';
document.getElementById('goods').style.backgroundPosition='left -60px';
}

}