function qesoc($id){
	if (document.getElementById($id+"-ans").style.display == "none"){
		document.getElementById($id+"-ans").style.display="block";
	}else{
		document.getElementById($id+"-ans").style.display="none";
	}
}

function qahide($num){
	for(a=1;a<=$num;a++){
		document.getElementById("qa"+a+"-ans").style.display="none";
	}
}