function setPng24(obj) {
obj.width=obj.height=1;
obj.className=obj.className.replace(/\bpng24\b/i,'');
obj.style.filter =
"progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ obj.src +"',sizingMethod='image');"
obj.src='/images/comm/blank.gif'; // 404error ´ëó 
return '';
}


// image on/off Change
function imgChg(obj) {		/* onClick½Ã image-change, [ex:	imgChg(this); ] */
	if(obj.src.indexOf("off.gif") != -1) obj.src = obj.src.replace("off.gif", "on.gif");
	else if(obj.src.indexOf("on.gif") != -1) obj.src = obj.src.replace("on.gif", "off.gif");
}

// Content Display
function contView(obj) {	/* obj = id°ª(name), [ex:	contView('idname'); ]*/
	var target = document.getElementById(obj);
	target.style.display = (target.style.display=='none' ? 'block':'none');
}

// Content Display
function fsite(obj) {	/* obj = id°ª(name), [ex:	contView('idname'); ]*/
	var target = document.getElementById(obj);
	target.style.visibility = (target.style.visibility=='hidden' ? 'visible':'hidden');
}


// image on/off Change
function imgChg(obj) {		/* onClick½Ã image-change, [ex:	imgChg(this); ] */
	if(obj.src.indexOf("off.gif") != -1) obj.src = obj.src.replace("off.gif", "on.gif");
	else if(obj.src.indexOf("on.gif") != -1) obj.src = obj.src.replace("on.gif", "off.gif");
}