// cookieの読み込み
function isFirst(){
  isVisit = getCookie("isVisit");

//  isVisit = 'off';

  if(isVisit == "true"){
    document.write("<p><img src='img/logo.jpg' border='0' width='480' height='200' alt='福岡県 歯科 歯周病治療'></p>");
//    document.write(isVisit);
  }
  else {
    document.write("<object classid='clsid:d27cdb6e-ae6d-11cf-96b8-444553540000' codebase='http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0' width='480' height='200' id='parkdc-fx' align='middle'>");
    document.write("<param name='allowScriptAccess' value='sameDomain' />");
    document.write("<param name='movie' value='flash.swf' />");
    document.write("<param name='loop' value='false' />");
    document.write("<param name='menu' value='false' />");
    document.write("<param name='quality' value='high' />");
    document.write("<param name='bgcolor' value='#ffffff' />");
    document.write("<embed src='flash.swf' loop='false' menu='false' quality='high' bgcolor='#ffffff' width='480' height='200' name='parkdc-fx' align='middle' allowScriptAccess='sameDomain' type='application/x-shockwave-flash' pluginspage='http://www.macromedia.com/go/getflashplayer' />");
    document.write("</object>");
//    document.write(isVisit);
  }

 setCookie();
}

// cookieのセット
function setCookie(){
  exp = new Date();
  year = exp.getYear();
  date = exp.getDate();
  if(year < 2000) year += 1900;
  exp.setDate(date + 1);

  document.cookie = "isVisit = true;expires="
   + exp.toGMTString() + ";path = /;";
}

function getCookie(keyname) {
	tmp = document.cookie + ";";
	index1=tmp.indexOf(keyname,0);
	if(index1 !=-1) {
		tmp=tmp.substring(index1,tmp.length);
		index2=tmp.indexOf("=",0)+1;
		index3=tmp.indexOf(";",index2);
		return(unescape(tmp.substring(index2,index3)));
	}
	return("false");
}