//--------------------------------------------------------------------
// ページトップへ
//--------------------------------------------------------------------

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);
}
}



//--------------------------------------------------------------------
// $(document).ready()
//--------------------------------------------------------------------
$(document).ready( function() {

	// 画像のロールオーバー
	$('img[src*=_off.]')
		.mouseover( function() {
			$(this).attr('src', $(this).attr('src').replace('_off.', '_on.') );
		} )
		.mouseout( function() {
			$(this).attr('src', $(this).attr('src').replace('_on.', '_off.') );
		} );

} );


//--------------------------------------------------------------------
// 文字サイズ変更（プロパティ）
//--------------------------------------------------------------------
//jquery.textresizer.js settings
$(function(){
	$("#fontsize ul li a").textresizer({
		target: "#wrapper",
		type: "cssClass",
		sizes: [
			"medium",
			"large",
			"x-large",
		],
		selectedIndex: 1
	});
	$('.useHeightLine #fontsize ul li a').click(function() {
		location.reload();
	});
});