function mOver(num)

{
	if (document.images)
	
	{
	document.images['button'+num].src = eval('over'+num+'.src');
	}
}
	
function mOut(num)

{
	if (document.images)
	
	{
	
	document.images['button'+num].src = eval('normal'+num+'.src');
	
	}
	
}