var logShowHide = 0

function showhide(showhich){

	for(i = 1; i < 5; i++){
		document.getElementById('menu' + i + 'box').style.display = 'none'
	}
	
	if(logShowHide != showhich){
		document.getElementById('menu' + showhich + 'box').style.display = 'block'
		logShowHide = showhich
	}else{
		logShowHide = 0
	}
	
}