// JScript File

function EnableCityTb()
{
    if( document.getElementById('CityList').value == -1 )
    {
        document.getElementById('otherCityTb').disabled = false;
        return true;
    }
    else
    {
        document.getElementById('otherCityTb').value = "";
        document.getElementById('otherCityTb').disabled = true;
        return true;        
    }
}