// Extended Tooltip Javascript
// copyright 9th August 2002, by Stephen Chapman, Felgall Pty Ltd

// permission is granted to use this javascript provided that the below code is not altered
var DH = 0;
var an = 0;
var al = 0;
var ai = 0;
if (document.getElementById)
{
	ai = 1;
	DH = 1;
}
else
{
	if (document.all)
	{
		al = 1; 
		DH = 1;
	}
	else
	{
		browserVersion = parseInt(navigator.appVersion);
		if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4))
		{
			an = 1;
			DH = 1;
		}
	}
} 

function fd(oi,ws)
{
	if (ws == 1)
	{
		if (ai)
			return (document.getElementById(oi).style);
		else if (al) 
			return (document.all[oi].style);
		else if (an) 
				return (document.layers[oi]);
	}
	else if (ai)
		return(document.getElementById(oi));
	else if (al)
		return (document.all[oi]);
	else if (an) 
		return (document.layers[oi]);
}

function pw()
{
	if (window.innerWidth != null) 
		return window.innerWidth;
	if (document.body.clientWidth != null)
		return document.body.clientWidth;
	return (null);
}

function popUp(evt,oi)
{
	if (DH)
	{
		var wp = pw(); 
		ds = fd(oi,1); 
		dm = fd(oi,0); 
		st = ds.visibility; 
		
		if (dm.offsetWidth) 
			ew = dm.offsetWidth;
		else if (dm.clip.width) 
			ew = dm.clip.width;
		if (st == "visible" || st == "show")
			ds.visibility = "hidden";
		else
		{ 
			if (evt.y || evt.pageY) 
			{
				if (evt.pageY) 
				{
					tv = evt.pageY + 20;
					lv = evt.pageX - (ew/4);
				}
				else
				{
					tv = evt.y + 20 + document.body.scrollTop;
					lv = evt.x  - (ew/4) + document.body.scrollLeft;
				} 
				
				if (lv < 2)
					lv = 2; 
				else if (lv + ew > wp) 
					lv -= ew/2; 
				
				ds.left = lv; 
				ds.top = tv;
			}
			ds.visibility = "visible";
		}
	}
}

function addRow(id){
    var tbody = document.getElementById(id).getElementsByTagName("TBODY")[0];
    var row = document.createElement("TR")
    var td1 = document.createElement("TD")
    td1.appendChild(document.createTextNode("column 1"))
    var td2 = document.createElement("TD")
    td2.appendChild (document.createTextNode("column 2"))
    row.appendChild(td1);
    row.appendChild(td2);
    tbody.appendChild(row);
  }
function listDepartureAirports_onchange() {
	textDepartureCity.value = listDepartureAirports.options[listDepartureAirports.selectedIndex].text;
}

function listDestinationAirports_onchange() {
	textDestinationCity.value = listDestinationAirports.options[listDestinationAirports.selectedIndex].text;
}