function backToTop() {
	var x1 = x2 = x3 = 0;
	var y1 = y2 = y3 = 0;
	if(document.documentElement){
		x1 = document.documentElement.scrollLeft || 0;
		y1 = document.documentElement.scrollTop || 0;
	}
	if(document.body){
		x2 = document.body.scrollLeft || 0;
		y2 = document.body.scrollTop || 0;
	}
	x3 = window.scrollX || 0;
	y3 = window.scrollY || 0;
	var x = Math.max(x1, Math.max(x2, x3));
	var y = Math.max(y1, Math.max(y2, y3));
	window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
	if(x > 0 || y > 0){
		window.setTimeout("backToTop()", 25);
	}
}

function QAtarget(){
	loaddata.style.visibility='visible';
	var aANK = "";
	var aURL = location.search;
	var aSplit1 = aURL.split("?");
	if( aSplit1.length > 1 ){
		var aSplit2 = aSplit1[1].split("&");
		//var iMax = aSplit2.length;

		//qaのパラメータは3番目
		if(aSplit2[2] != null || aSplit2[2] != undefined){
			aSplit3 = aSplit2[2].split("=");
			aANK += aSplit3[1]
		//	alert(aANK);
			var obj = document.getElementById(aANK);

			//オブジェクトが取得できないパラメータの場合もある
			if(obj != null || obj != undefined){
				obj.className = "exQA";
				location.href = '#Q-' + aANK;
			}
		}
	}
	return false;
}


function exQA(obj_id)
{
	var obj = document.getElementById(obj_id);
	if (obj.className == "exQA_hid")
	{
	    obj.className = "exQA";
	}
	else
	{
	    obj.className = "exQA_hid";
	}
	return false;
}


function exQAI(obj_id)
{
	var obj = document.getElementById(obj_id);
	obj.className = "exQA";
	return false;
}


function exADVICE(obj_id)
{
	var obj = document.getElementById(obj_id);
	if (obj.className == "exADVICE_hid")
	{
	    obj.className = "exADVICE";
	}
	else
	{
	    obj.className = "exADVICE_hid";
	}
	return false;
}