function onClickElem(elem, name_other, chk_other)
{
    if ( document.getElementById(chk_other) )
	{
	    if ( elem.value == name_other && ( elem.type == 'radio' || ( elem.type == 'checkbox' && elem.checked == true ) ) )
		{
		    document.getElementById(chk_other).disabled = false;
		}
		else if ( elem.value != name_other && elem.type == 'radio' )
		{
		    document.getElementById(chk_other).disabled = true;
		}		
		else if ( elem.value == name_other && elem.type == 'checkbox' && elem.checked == false )
		{
		    document.getElementById(chk_other).disabled = true;
		}
	}
}

function onChangeElem(elem, name_other, chk_other)
{
    if ( document.getElementById( chk_other ) )
	{
	    if ( elem.value == name_other )
		{
		    document.getElementById( chk_other ).disabled = false;
		}
		else if ( elem.value != name_other )
		{
		    document.getElementById( chk_other ).disabled = true;
		}
	}
}

function onClickElemOne(elem, name, name_other)
{
    if ( document.getElementById( name ).checked == true )
	{
	    document.getElementById( name_other ).disabled = false;
	}
	else if ( document.getElementById( name ).checked == false )
	{
	    document.getElementById( name_other ).disabled = true;
	}
}