function openSubMn(item){
	var sub_mn=searchChild(item,'sub_mn');
	if(item.className!='item curr act'){
		item.className='item curr';
		var edge_l=creat('span');
		edge_l.className='edge_l';
		item.insertBefore(edge_l,firstChild(item));
		var edge_r=creat('span');
		edge_r.className='edge_r';
		if(sub_mn)item.insertBefore(edge_r,sub_mn);
		else item.appendChild(edge_r);
	}
	if(sub_mn)show(sub_mn);
}
function closeSubMn(item){
	if(item.className!='item curr act'){
		item.className='item';
		var edge_l=searchChild(item,'edge_l');
		if(edge_l)unlinkNode(edge_l);
		var edge_r=searchChild(item,'edge_r');
		if(edge_r)unlinkNode(edge_r);
	}
	var sub_mn=searchChild(item,'sub_mn');
	if(sub_mn)hide(sub_mn);
}
function setFlash(){
	// параметры: (адрес флеш-файла, id флеши, ширина, высота)
	var so=new SWFObject('sait/images/flash_4.swf?1', 'flash_main', '1000', '300', '7', '#fff');
	so.addParam('quality','high');
	so.addParam('bgcolor','#fff');
	so.addParam('allowScriptAccess','sameDomain');
	so.addParam('wmode','opaque');
	so.write('flash_bl');
}
function setImage(src){
	var mp=gei('flash_bl');
	if(mp.innerHTML!='')return false;
	var img=creat('img');
	img.src=src;
	img.alt='';
	mp.appendChild(img);
}
function checkFlashBlock(){
	var mp=gei('flash_bl');
	if(mp.innerHTML==''){
		mp.style.height='20px';
		var body=document.body;
		body.style.cssText="background: url(sait/images/grad_main_sm.jpg) repeat-x;";
	}
}
function highlightAlbumCover(cover){
	cover.className='cover act';
}
function lowlightAlbumCover(cover){
	cover.className='cover';
}
function checkLeftCol(){
	var lc=gei('left_col');
	if(!lc.innerHTML)hide(lc);
}