var url = 'http://intothewild.jp/banner.swf';

var obj = '<embed src="'+url+'" quality="high" bgcolor="#ffffff" width="278" height="80" name="char" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" />';

document.write(obj);