function menu(obj){
	if(document.getElementById(obj).style.display=='none'){
		document.getElementById(obj).style.display='';
	}
	else{
		document.getElementById(obj).style.display='none';
	}
	return false;
}

function init(){
	expandcollapse=true;
	setstyle('none');
}

function setstyle(showValue){
	document.getElementById("KeepingFoodPerfect").style.display=showValue;
	document.getElementById("FreezingFreshFood").style.display=showValue;
	document.getElementById("PreparationsforFreezing").style.display=showValue;
}