var ua = navigator.userAgent;

function answerHide(){
	$("div.answer").css("display","none") ;
}

function answerView(id){
	var answer = "ac"+id;
	var display = $("#"+answer).css("display");
	
	if(ua.match(/MSIE 7/)) {
		if(display == "block") {
		$("#"+answer).slideUp("fast");
		}
		else {
		$("#"+answer).slideDown("fast");
		}
	}
	else if (ua.match(/MSIE (\d\.\d+)/)) {
		if(display == "block") {
		$("#"+answer).hide();
		}
		else {
		$("#"+answer).show();
		}
	}
	else {
		if(display == "block") {
		$("#"+answer).slideUp("fast");
		}
		else {
		$("#"+answer).slideDown("fast");
		}
	}
}