function flash(count,now,idt,idn,classname,classname1)
{
	if(idn=="")
	{
		for(i=1; i<=count; i++)
		{
			if(i==now)
			{
				document.getElementById(idt+i).className=classname1;
			}
			else
			{
				document.getElementById(idt+i).className=classname;
			}
		}
	}
	else
	{
		for(i=1; i<=count; i++)
		{
			if(i==now)
			{
				document.getElementById(idn+i).style.display="block";
				document.getElementById(idt+i).className=classname1;		
			}
			else
			{
				document.getElementById(idn+i).style.display="none";
				document.getElementById(idt+i).className=classname;
			}
		}
	}
}