function usersaddSG()
{
	if (document.usersadd.SGID1.checked == false &&
	    document.usersadd.SGID2.checked == false &&
		document.usersadd.SGID3.checked == false &&
		document.usersadd.SGID4.checked == false &&
		document.usersadd.SGID5.checked == false &&
		document.usersadd.SGID6.checked == false &&
	    document.usersadd.SGID7.checked == false)
		{
		alert ('Please select at least one security group!');
		return false;
		}
	else
		{
		return true;
		}
}

function usersupdateSG()
{
	if (document.usersupdate.SGID1.checked == false &&
	    document.usersupdate.SGID2.checked == false &&
		document.usersupdate.SGID3.checked == false &&
		document.usersupdate.SGID4.checked == false &&
		document.usersupdate.SGID5.checked == false &&
		document.usersupdate.SGID6.checked == false &&
	    document.usersupdate.SGID7.checked == false)
		{
		alert ('Please select at least one security group!');
		return false;
		}
	else
		{
		return true;
		}
}