function enableIfOther(drop, field)
{
	if(document.getElementById(drop).selectedIndex == document.getElementById(drop).length - 1)
	{
        document.getElementById(field).disabled = false;
        document.getElementById(field).focus();
    }
    else
    {
 		document.getElementById(field).disabled = true;
    }
}


function enableTwo(drop, field, field2)
{
	if (document.getElementById(drop).selectedIndex == document.getElementById(drop).length - 1)
	{
        document.getElementById(field).disabled = false;
        document.getElementById(field).focus();
    }

    else if (document.getElementById(drop).value == '2')
    {
        document.getElementById(field2).disabled = false;
    }
    else
    {
 		document.getElementById(field).disabled = true;
 		document.getElementById(field2).disabled = true;
    }
}