function showHideDate(value)
{
 document.getElementById("DateRow").style.display = value;
}
function showSourceAddres()
{
 document.getElementById("SourceADDRow").style.display = '';
 document.getElementById("SourceAirportRow").style.display = 'none';
}

function HideSourceAddres()
{
 document.getElementById("SourceADDRow").style.display = 'none';
 document.getElementById("SourceAirportRow").style.display = '';
}

function showDestAddres()
{
 document.getElementById("DestADDRow").style.display = '';
 document.getElementById("DestAirportRow").style.display = 'none';
}

function HideDestAddres()
{
 document.getElementById("DestADDRow").style.display = 'none';
 document.getElementById("DestAirportRow").style.display = '';
}