function toggleClassName( event, elem, onStr, offStr )
{
	var elem = document.getElementById( elem.id );
	elem.className = ( event.type == 'mouseover' ) ? elem.id + onStr : elem.id + offStr;
}
function toggle( event, elem )
{
	toggleClassName( event, elem, ' on', ' off' );
}
function swapImage( event, elem )
{
	toggleClassName( event, elem, '_on', '' );
}
function openWindow( url, winWidth, winHeight ) 
{
	try
	{
		var left = ( ( screen.width - winWidth ) / 2 );
		var top = ( ( screen.height - winHeight ) / 2 );
		var theWin = window.open( url, 'results', 'toolbar=no,locationbar=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=' + winWidth + ',height=' + winHeight + ',left=' + left + ',top=' + top );
		theWin.focus();
	}
	catch ( ex )
	{
		debug( "exception thrown : " + ex.message );
	}
}
function swap(name, flag, imgPath)
{
	var state = (flag) ? '_on' : '';
	var srcPath = imgPath + name + state + '.gif';
	document.getElementById(name).src = srcPath;
}