//Copyright (c) 2000 direction inc. All rights reserved.
//Any reuse of this or any code in any of direction's solutions is strictly prohibited without written consent.
//Please refer to "www.directionsolutions/legal.html" for further important copyright & licensing information.

function writeButton( btnName, imageName, onClick ) {
	var doc;
    if ( is_nav4only ) {
		doc = document.layers["content"].document;
	} else {
		doc = document;
	} // end if

	doc.write( "<a href=\"#\" onClick=\"btnOff('"+btnName+"');"+onClick+"return false;\" onmouseover=\"btnOn('"+btnName+"');\" onmouseout=\"btnOff('"+btnName+"');\"><img src=\"/images/buttons/off/"+imageName+"\" border=\"0\" name=\""+btnName+"\"></a>" );
	// cache the on state
    var button = new Image();
    button.src = "/images/buttons/on/"+imageName;
} // end function writeButton

function btnOn( btnName ) {
	var image = getImage( btnName );
	var filename;

	if ( image ) {
		filename = image.src.substring( image.src.lastIndexOf('/') + 1 );
		image.src = '/images/buttons/on/' + filename;
	} /* end if */
	self.status = filename.substring( 0, filename.lastIndexOf('.') );

	return true;
} // end function btnOn( btnName )

function btnOff( btnName ) {
	var image = getImage( btnName );
	if ( image ) {
		var filename = image.src.substring( image.src.lastIndexOf('/') + 1 );
		image.src = '/images/buttons/off/' + filename;
	} /* end if */
	self.status = '';
} // end function btnOn( btnName )