var cur_bg = '';
	var new_bg = '';
	function getImageX(imgElem)
	{
		xPos = eval(imgElem).offsetLeft;
		tempEl = eval(imgElem).offsetParent;
		while (tempEl != null)
		{
			xPos += tempEl.offsetLeft;
			tempEl = tempEl.offsetParent;
		}
		//alert(xPos);
		return xPos;
	}
	function show_bg(id)
	{
		var IMGx = 0;
		if (cur_bg=='')
		{
			cur_bg = document.getElementById('menu').style.backgroundImage;
		}
		new_bg = 'url(/tpl/main/images/menu_fon_'+id+'.jpg)';
		document.getElementById('menu').style.backgroundImage = new_bg;
		document.getElementById( ('mp_'+id ) ).src = '/tpl/main/images/menu_'+id+'_on.png';
		if (id<4)
		{
			IMGx = getImageX( document.getElementById( ('mp_'+id) ) );
			if (id==1) IMGx += 18;
			document.getElementById( ('menu_down_'+id) ).style.left = IMGx+'px';
			document.getElementById( ('menu_down_'+id) ).style.display = 'block';
		}
	}
	function hide_bg(id)
	{
		document.getElementById('menu').style.backgroundImage = cur_bg;
		document.getElementById( ('mp_'+id ) ).src = '/tpl/main/images/menu_'+id+'.png';
		if (id<5)
		{
			document.getElementById( ('menu_down_'+id) ).style.display = 'none';
		}
	}