function hideAbout(){
	hideInterval = setInterval(setAbout,1500,false);
}
function setAbout(bShow) {
	try{
		if(hideInterval){
		clearInterval(hideInterval);
		}
	}catch(e){}
	if(bShow){
		document.getElementById("sub_menu").className = document.getElementById("sub_menu").className.replace("-off", "-on");
	} else {
		document.getElementById("sub_menu").className = document.getElementById("sub_menu").className.replace("-on", "-off");
	}
	
}