function ShowPic(num)
{
	obj=document.getElementById('pmn'+num);
	obj.src='img/bt'+num+'.gif';

	dv=document.getElementById('mn'+num);
	tab=document.getElementById('tamn');

	dv.style.visibility='visible';
	dv.style.posLeft=tab.offsetLeft+142*num-132;
	dv.style.posTop=tab.offsetTop+112;
}

function HidePic(num)
{
	obj=document.getElementById('pmn'+num);
	obj.src='img/bt'+num+'a.gif';

	divmnu=document.getElementById('mn'+num);
	divmnu.style.visibility='hidden';
}