function toggleShowHide(id) {
	Element.toggle(id);
}

/** IE用 a:hover時のちらつき防止 */
try {
document.execCommand('BackgroundImageCache', false, true);
} catch(e) {}

/** mouse action */
function mover(dom) {
	var str = "_over";
	var src = dom.style.backgroundImage;
	var path_ary = src.split('/');
	var filename = path_ary.pop();
	var filename_ary = filename.split('.');
	var path = path_ary.join('/');
	dom.style.backgroundImage = path +'/'+ filename_ary[0] + str +'.'+ filename_ary[1];
}
function mout(imgObj) {
	var str = "_over";
	var src = imgObj.style.backgroundImage;
	var path_ary = src.split('/');
	var filename = path_ary.pop();
	var filename_ary = filename.split('.');
	var path = path_ary.join('/');
	filename_ary[0] = filename_ary[0].replace(str, '');
	imgObj.style.backgroundImage = path +'/'+ filename_ary[0] +'.'+ filename_ary[1];
}

//function mover(imgObj) {
//	var str = "_over";
//	var src = imgObj.src;
//	var path_ary = src.split('/');
//	var filename = path_ary.pop();
//	var filename_ary = filename.split('.');
//	var path = path_ary.join('/');
//	imgObj.src = path +'/'+ filename_ary[0] + str +'.'+ filename_ary[1];
//}
//function mout(imgObj) {
//	var str = "_over";
//	var src = imgObj.src;
//	var path_ary = src.split('/');
//	var filename = path_ary.pop();
//	var filename_ary = filename.split('.');
//	var path = path_ary.join('/');
//	filename_ary[0] = filename_ary[0].replace(str, '');
//	imgObj.src = path +'/'+ filename_ary[0] +'.'+ filename_ary[1];
//}