try {
	document.execCommand('BackgroundImageCache', false, true);
} catch(e) {}

function showPulldown(plist){
	var a = plist.getElementsByTagName('a')[0];
	var pd = plist.getElementsByTagName('ul')[0];
	
	a.className = "on";
	if(pd) pd.style.display = 'block';
}
	
function hidePulldown(plist){
	var a = plist.getElementsByTagName('a')[0];
	var pd = plist.getElementsByTagName('ul')[0];
	
	a.className = "";
	if(pd) pd.style.display = 'none';
}