function copy(tburl)
{
	if (window.clipboardData) 
	{
		window.clipboardData.setData("Text", tburl);
	}
	else if (window.netscape) 
	{ 
		netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
		var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
		if (!clip) return;
		var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
		if (!trans) return;
		trans.addDataFlavor('text/unicode');
		var str = new Object();
		var len = new Object();
		var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
		var copytext=tburl;
		str.data=copytext;
		trans.setTransferData("text/unicode",str,copytext.length*2);
		var clipid=Components.interfaces.nsIClipboard;
		if (!clip)	return false;
		clip.setData(trans,null,clipid.kGlobalClipboard);
	}
	alert('Æ®·¢¹é ÁÖ¼Ò°¡ º¹»çµÇ¾ú½À´Ï´Ù.');
}


function layer_toggle(obj) { 
        if (obj.style.display == 'none') obj.style.display = 'block'; 
        else if (obj.style.display == 'block') obj.style.display = 'none'; 
}