/*
 * IE PNG Fix v1.4
 *
 * Copyright (c) 2006 Takashi Aida http://www.isella.com/aod2/
 *
 */

// IE5.5+ PNG Alpha Fix v1.0RC4
// (c) 2004-2005 Angus Turnbull http://www.twinhelix.com

// This is licensed under the CC-GNU LGPL, version 2.1 or later.
// For details, see: http://creativecommons.org/licenses/LGPL/2.1/

if (typeof IEPNGFIX == 'undefined') {
//--============================================================================

var IEPNGFIX = {
	blank:  'http://www.isella.com/aod2/images/blank.gif',
	filter: 'DXImageTransform.Microsoft.AlphaImageLoader',

	fixit: function (elem, src, method) {
		if (elem.filters[this.filter]) {
			var filter = elem.filters[this.filter];
			filter.enabled = true;
			filter.src = src;
			filter.sizingMethod = method;
		}
		else {
			elem.style.filter = 'progid:' + this.filter +
				'(src="' + src + '",sizingMethod="' + method + '")';
		}
	},

	fixwidth: function(elem) {
		if (elem.currentStyle.width == 'auto' &&
			elem.currentStyle.height == 'auto') {
			elem.style.width = elem.offsetWidth + 'px';
		}
	},

	fixchild: function(elem, recursive) {
		if (!/MSIE (5\.5|6\.|7\.)/.test(navigator.userAgent)) return;

		for (var i = 0, n = elem.childNodes.length; i < n; i++) {
			var childNode = elem.childNodes[i];
			if (childNode.style) {
				if (childNode.style.position) {
					childNode.style.position = childNode.style.position;
				}
				else {
					childNode.style.position = 'relative';
				}
			}
			if (recursive && childNode.hasChildNodes()) {
				this.fixchild(childNode, recursive);
			}
		}
	},

	fix: function(elem) {
		if (!/MSIE (5\.5|6\.|7\.)/.test(navigator.userAgent)) return;

		var bgImg =
			elem.currentStyle.backgroundImage || elem.style.backgroundImage;

		if (elem.tagName == 'IMG') {
			if ((/\.png$/i).test(elem.src)) {
				this.fixwidth(elem);
				this.fixit(elem, elem.src, 'scale');
				elem.src = this.blank;
				elem.runtimeStyle.behavior = 'none';
			}
		}
		else if (bgImg && bgImg != 'none') {
			if (bgImg.match(/^url[("']+(.*\.png)[)"']+$/i)) {
				var s = RegExp.$1;
				this.fixwidth(elem);
				elem.style.backgroundImage = 'none';
				this.fixit(elem, s, 'scale'); // crop | image | scale

				if (elem.tagName == 'A' && elem.style) {
					if (!elem.style.cursor) {
						elem.style.cursor = 'pointer';
					}
				}

				this.fixchild(elem);
				elem.runtimeStyle.behavior = 'none';
			}
		}
	},

	hover: function(elem, hvImg) {
		var bgImg = elem.style.backgroundImage;

		if (!bgImg && elem.currentStyle) bgImg = elem.currentStyle.backgroundImage;

		if (elem.tagName == 'IMG' && hvImg) {
			var image = elem.src;
			elem.onmouseover = function() {
				elem.src = hvImg;
				IEPNGFIX.fix(elem);
			};
			elem.onmouseout = function() {
				elem.src = image;
				IEPNGFIX.fix(elem);
			};
		}
		else if (bgImg && bgImg != 'none' && hvImg) {
			elem.onmouseover = function() {
				elem.style.backgroundImage = 'url(' + hvImg + ')';
				IEPNGFIX.fix(elem);
			};
			elem.onmouseout = function() {
				elem.style.backgroundImage = bgImg;
				IEPNGFIX.fix(elem);
			};
		}

		IEPNGFIX.fix(elem);
	}
};

//--============================================================================
} // end if (typeof IEPNGFIX == 'undefined')

<!--
/* 表示非表示（スイッチ） */
function block(id){
	id+=1;
	id = "categorys_id" + id;
	if(window.opera || document.getElementById){
		document.getElementById(id).style.display = (document.getElementById(id).style.display !== "block") ? "block" : "none" ;
	}else if(document.all){
		document.all[id].style.display = (document.all[id].style.display != "block") ? "block" : "none" ;
	}
}

function categoryMake(){
	if(navigator.appName == "Netscape" && document.layers)return ;

	var prevListNum = 0, nextListNum = 0;
	var str = id = "";
	var cnt=ltc.length;
	var lv=0;
	for(var j in ltc){
		
		/* 同階層の要素の場合はliを閉じる */
		if(prevListNum == ltc[j] || prevListNum > ltc[j]){
			str += '</li>';
		}

		/* 新しいリストが出現した場合、階層分の要素とリストを閉じる */
		if(prevListNum > ltc[j] && prevListNum > 1){
			for(i = 0; i < prevListNum - ltc[j]; i++){
				str +='</ul></li>';
			}
		}
		/* 最初のリストまたは、下位の階層の場合はリストを出力 */
		if(j == 1 || (prevListNum < ltc[j] && ltc[j] > 1)){
				str += '<ul class="category_lv' + ltc[j] + '" id="categorys_id' + j + '" style="display:block;">';
		}
		str += '<li>';
		nextListNum = Number(j)+1;
		/* 最終要素でなく、次の要素が下の階層の場合スイッチを表示する */
		if(cnt > nextListNum && ltc[nextListNum] > ltc[j]){
			str += '<a href="javascript:block(' + j + ')" class="category_switch">+</a>';
		}
		/* カテゴリ文字列の取得 */
		id = "category_id" + j;
		if (navigator.appName == "Netscape" && document.getElementById && document.getElementById(id) != null){
			str += document.getElementById(id).innerHTML;
		}else if(document.all){
			str += document.all[id].innerHTML;
		}
		prevListNum=ltc[j];
	}
	/* 階層分の要素とリストを閉じる */
	for(i = 0; i < prevListNum; i++){
		str +='</li></ul>';
	}

	/* レイヤーへの書き出し */
	if (navigator.appName == "Netscape"){
		if(document.layers){
			document.layers['category_archive_text'].document.write(str);
			document.layers['category_archive_text'].document.close();
		}else if(document.getElementById && document.getElementById('category_archive_text') != null){
			document.getElementById('category_archive_text').innerHTML = str;
		}
	}else if(document.all){
		document.all['category_archive_text'].innerHTML = str;
	}
}
// -->