/*----- user setting -----*/


var section_label = [".A_sec",".box_set"];
var section_style = [""];

var target_label = ["A_","box_"];
var target_style = ["","display: block; padding: 2px 0px 0px 15px; margin: 0px; background: no-repeat left center;"];
var target_bg_hide = ["","img/prt_qa_arrow_off.gif"];
var target_bg_show = ["","img/prt_qa_arrow_on.gif"];

var browser_disable = "Your Browser is Not Supported.";


/*----- user setting -----*/


function preload(imgURL) {
	preImg = new Image();
	preImg.src=imgURL;
}
for (var i=0; i<target_bg_show.length; i++) {
	imgURL = target_bg_show[i];
	preload(imgURL);
}

document.write("<style type='text/css'>");
for (var i=0; i<target_label.length; i++) {
	document.write(section_label[i]+" { "+section_style[i]+" }");
	document.write(section_label[i]+" a{ "+target_style[i]+" }");
}
document.write("</style>");

function showHide(e){
	var target_node;
	if(e.target) {
		target_node = e.target;
		} else { target_node = e.srcElement;
		}

	if( navigator.userAgent.indexOf("Safari/1", 0) >= 0 || navigator.userAgent.indexOf("Safari/3", 0) >= 0){
		target_node = e.target.parentNode;
		}
	var target_id = target_node.getAttribute("id") , block_id = target_id + "_block", block = document.getElementById(block_id);
	var show = target_node["s_h"];
	if(show==undefined){show=false;}
	var i = target_node["tmp_i"];
	if(show) {
		target_node.style.backgroundImage = "url('"+target_bg_hide[i]+"')";
		block.style.display = "none";
	} else {
		target_node.style.backgroundImage = "url('"+target_bg_show[i]+"')";
		block.style.display = "block";
	}
	target_node["s_h"] = ! show;
}

function setListeners(e) {
	var aTag = document.getElementsByTagName("a");
	for (var i=0; i<target_label.length; i++) {
		for (var j=0; j<aTag.length; j++) {
			var listener_node = aTag[j];
			var _id = aTag[j].getAttribute("id");
			if( _id == null ) continue;
			if( _id.indexOf(target_label[i]) >= 0 ) {
				listener_node.setAttribute("href","javascript:void(0)");
				listener_node["tmp_i"] = i;
				addListener(listener_node,'click',showHide,false);
				var block_id = _id + "_block", block = document.getElementById(block_id);
				block.style.display ="none";
				listener_node.style.backgroundImage = "url('"+target_bg_hide[i]+"')";
			}
		}
	}
}

function addListener(elem,eventType,func,cap) {
	if(elem.addEventListener) {
		elem.addEventListener(eventType,func,cap);
	} else if(elem.attachEvent) {
		elem.attachEvent('on' + eventType,func);
	} else {
		alert(browser_disable);
		return false;
	}
}

addListener(window,'load',setListeners,false);