var
///////////////////////////////////////////////////////////////////
mouse_on_color = '#222', // マウスON文字色
mouse_on_background_color = '#111', // マウスON背景色
mouse_out_color = '#000', // マウスアウト文字色
mouse_out_background_color = '#111'; // マウスアウト背景色
///////////////////////////////////////////////////////////////////

function setToggleFunc() {
	var elm;

	if ( document.getElementsByTagName ) {
		for ( var i=1;elm=(document.getElementsByTagName( "*" )[i]);i++ ) {
			if ( !elm.className ) continue;
			if ( elm.parentNode.firstChild == elm ) {
				elm.className.replace( /\bjs_[open|close]\b/, '' );
				continue;
			}
			if ( !elm.className.match(/js_[open|close]/) ) continue;
			var objTrigger = elm.previousSibling;

			while( !objTrigger || objTrigger.nodeType != 1 ) {
				objTrigger = objTrigger.previousSibling;
			}
			if ( !objTrigger ) continue;

			objTrigger.style.cursor = 'pointer';
			objTrigger.className += ' js_mouse_out';
			objTrigger.title += ( elm.className.match(/js_close/) ) ? '' : '';

			objTrigger.onclick = function () {
				var objTarget = this.nextSibling;
				while ( objTarget.nodeType != 1 ) {
					objTarget = objTarget.nextSibling;
				}

				objTarget.flag = objTarget.className.match(/js_close/);
				if ( objTarget.flag ) {
					objTarget.className = objTarget.className.replace( /\bjs_close\b/, 'js_open' );
					this.title = this.title.replace( /click to open/, 'click to close' );
				} else {
					objTarget.className = objTarget.className.replace( /\bjs_open\b/, 'js_close' );
					this.title = this.title.replace( /click to close/, 'click to open' );
				}
			}

			objTrigger.onmouseover = function () {
				this.className = this.className.replace( /\bjs_mouse_out\b/, 'js_mouse_on' );
				//this.style.color = mouse_on_color;
				//this.style.backgroundColor = mouse_on_background_color;
			}

			objTrigger.onmouseout = function () {
				this.className = this.className.replace( /\bjs_mouse_on\b/, 'js_mouse_out' );
				this.style.color = mouse_out_color;
				this.style.backgroundColor = mouse_out_background_color;
			}
		}
	}
}

var _OK = false;
if ( navigator.appVersion.match( /MSIE (\d+\.\d+)/i ) ) {
	if ( ( RegExp.$1+0 ) >= 5.5 ) _OK = true;
} else _OK = true

function window_onload( f ) {
	if ( _OK ) {
		if ( window.addEventListener ) {
			window.addEventListener( "load", f, false );
		} else if ( window.attachEvent ) {
			window.attachEvent( "onload", f );
		}
	}
}

window_onload( setToggleFunc );

with ( document ) {
	if ( _OK && getElementsByTagName ) {
		var s = "<style type='text\/css'> .js_open { display: block} .js_close { display: none; } .js_mouse_on { color: " + mouse_on_color + " !important; background-color: " + mouse_on_background_color + " !important; } .js_mouse_out { color: " + mouse_out_color + " !important; background-color: " + mouse_out_background_color + " !important; }<\/style>";
		write(s);
	}
}