function f_open(pagename)
{
	if(document.all)
	{
	window.open(pagename,"sk","toolbar=no,status=no,width=410,height=488,top=110,left=185,resizable=no");
	}

	if(document.layers)
	{
	window.open(pagename,"sk","toolbar=no,status=no,width=340,height=445,top=135,left=465,resizable=no");
	}
}