var gFinishT = false, gStartT = false;

function clearSF()
{
	try {
		document.images[ "start" ].src = "Images/start.gif";
		document.images[ "finish" ].src = "Images/finish.gif";
	}
	catch ( er )
	{
		;
	}
}

function startTrack()
{
	gStartT = !gStartT;
	if ( gStartT ) 
	{
		gFinishT = false;
		document.body.style.cursor = 'crosshair';
	}
	else
	{
		document.body.style.cursor = 'default';
	}
	clearSF();
	document.images[ "start" ].src= 'Images/start_h.gif';
}

function finishTrack()
{
	gFinishT = !gFinishT;
	if ( gFinishT ) 
	{
		gStartT = false;
		document.body.style.cursor = 'crosshair';
	}
	else
	{
		document.body.style.cursor = 'default';
	}
	clearSF();
	document.images[ "finish" ].src= 'Images/finish_h.gif';
}

function dropTrack()
{
	clearSF();
	requestMap( "drop", 0, 0, 0, 0, 0 );
}