//別html広告をiframeで4ヵ所ランダム表示


function mainAD() {
var rr = parseInt(Math.random() * randObjects.length);
document.write(randObjects[rr]);
randObjects.splice(rr,1);
}

var randObjects=[

'<iframe class="main-ad" src="main-ad_phline.html" frameborder="0" scrolling="no"></iframe>',
'<iframe class="main-ad" src="main-ad_phtales.html" frameborder="0" scrolling="no"></iframe>',
'<iframe class="main-ad" src="main-ad_phscreen.html" frameborder="0" scrolling="no"></iframe>',
'<iframe class="main-ad" src="main-ad_phjobs.html" frameborder="0" scrolling="no"></iframe>',
'<iframe class="main-ad" src="main-ad_nfvideos.html" frameborder="0" scrolling="no"></iframe>',
'<iframe class="main-ad" src="main-ad_analph.html" frameborder="0" scrolling="no"></iframe>'

];


//最後のリンクの最終カンマ不要