//
// buster_scripts_ns.js
// A set of Netscape compataible JavaScripts 
// used throughout the Gunbuster.Net web site. 
//

// resetToc
// Zeroes out the toc listing.
function resetToc() {
	window.top.frames["tocFrame"].document.location.href="no_data.html";
}

// collapseToc
// Hides the table of contents frame.
function collapseToc() {
	// this action is not supported in Netscape DOM
}

// expandToc
// Reveals the table of contents frame.
function expandToc() {
	// this action is not supported in Netscape DOM
}

// resetData
// Zeroes out the data display.
function resetData() {
	window.top.frames["dataFrame"].document.location.href="no_data.html";
}

// loadData
// Fills the data frame with a reference.
function loadData( newHref ) {
	window.top.frames["dataFrame"].document.location.href=newHref;
}

// pushLevel
// Adds a level to the current directory listing.
function pushLevel( nextLevel, nextUrl ) {
	window.top.frames["menuFrame"].navigationPath.pushLevel( nextLevel, nextUrl ) ;
}

// popLevel
// Removes a level from the current directory listing.
function popLevel() {
	window.top.frames["menuFrame"].navigationPath.popLevel() ;
}

// setLevel
// Sets a specific level of the navigation path.
function setLevel( levelNum, levelName, levelUrl ) {
	window.top.frames["menuFrame"].navigationPath.setLevel( levelNum, levelName, levelUrl ) ;
}

// clearLevel
// Revoves a level and all succeeding levels from
// the navigation path.
function clearLevel( levelNum ) {
	window.top.frames["menuFrame"].navigationPath.clearLevel( levelNum ) ;
}

// presentImage
// Launches a new image in its own window.
function presentImage( source, caption, width, height ) {
	if( width < 100 ) {
		width = 100 ;
	}
	if( height < 100 ) {
		height = 100 ;
	}
	
	imageWindow = window.open( source, 
				 				"imageDisplay", 
								"directories=no,menubar=no,status=no,resizable=yes," + 
								"width=" + width + ",height=" + height ) ;
	imageWindow.resizeTo( width, height ) ;
}