var logo_today = new Date();
var the_logo_day =  new Date('july 13, 2011 10:00:00');
 
function change_logo(ele,game){
	if(logo_today>the_logo_day){
		document.getElementById(ele).src="http://userimg.arario.jp/design/commons/logos/"+ele+"_"+game+".gif";
	}	
}

function change_footer_logo(ele,game){
	if(logo_today>the_logo_day){
		document.getElementById(ele).style.backgroundImage="url('http://userimg.arario.jp/design/commons/logos/"+ele+"_"+game+".gif')"; 
	}	
}