n='none';
b='block';
o='o.png';
c='c.png';

function fm(id)
{
	if(document.getElementById)
	{
		if(document.getElementById(id).style.display==n)
			document.getElementById(id).style.display=b;
		else
			document.getElementById(id).style.display=n;
		
		if(document.getElementById(id+"i").src.indexOf('c')>0)
			document.getElementById(id+"i").src=o;
		else
			document.getElementById(id+"i").src=c;
	}
	else if(document.all)
	{
		if(document.all(id).style.display==n)
			document.all(id).style.display=b;
		else
			document.all(id).style.display=n;
		
		if(document.all(id+"i").src.indexOf('c')>0)
			document.all(id+"i").src=o;
		else
			document.all(id+"i").src=c;
	}
	else if(document.layers)
	{
		if(document.layers[id].style.display==n)
			document.layers[id].style.display=b;
		else
			document.layers[id].style.display=n;
		
		if(document.layers[id+"i"].src.indexOf('c')>0)
			document.layers[id+"i"].src=o;
		else
			document.layers[id+"i"].src=c;
	}
}