/********************************************************************************
*                        \       ypSlideOutMenus       /
*                         -----------------------------
*   Copyright            : (c) 2002 Aaron Boodman
*   Location             : http://www.youngpup.net/
*                          http://ypslideoutmenus.sourceforge.net/
*
*   Current Version      : 29 August 2002
*********************************************************************************
*  A nice little script to create exclusive, slide-out menus for NS4, NS6,
*  Mozilla, Opera, IE4, IE5 on Mac and Win32.  I don't have Linux or Unix to
*  test on but it should(?) work...
********************************************************************************/



// Browser Detect  v2.1.6
// documentation: http://www.dithered.com/javascript/browser_detect/index.html
// license: http://creativecommons.org/licenses/by/1.0/
// code by Chris Nott (chris[at]dithered[dot]com)

function BrowserDetect() {
	var ua = navigator.userAgent.toLowerCase(); 
	
	// browser engine name
	this.isGecko       = (ua.indexOf('gecko') != -1 && ua.indexOf('safari') == -1);
	this.isAppleWebKit = (ua.indexOf('applewebkit') != -1);
	
	// browser name
	this.isKonqueror   = (ua.indexOf('konqueror') != -1); 
	this.isSafari      = (ua.indexOf('safari') != - 1);
	this.isOmniweb     = (ua.indexOf('omniweb') != - 1);
	this.isOpera       = (ua.indexOf('opera') != -1); 
	this.isIcab        = (ua.indexOf('icab') != -1); 
	this.isAol         = (ua.indexOf('aol') != -1); 
	this.isIE          = (ua.indexOf('msie') != -1 && !this.isOpera && (ua.indexOf('webtv') == -1) ); 
	this.isMozilla     = (this.isGecko && ua.indexOf('gecko/') + 14 == ua.length);
	this.isFirebird    = (ua.indexOf('firebird/') != -1);
	this.isNS          = ( (this.isGecko) ? (ua.indexOf('netscape') != -1) : ( (ua.indexOf('mozilla') != -1) && !this.isOpera && !this.isSafari && (ua.indexOf('spoofer') == -1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('webtv') == -1) && (ua.indexOf('hotjava') == -1) ) );
	
	// spoofing and compatible browsers
	this.isIECompatible = ( (ua.indexOf('msie') != -1) && !this.isIE);
	this.isNSCompatible = ( (ua.indexOf('mozilla') != -1) && !this.isNS && !this.isMozilla);
	
	// rendering engine versions
	this.geckoVersion = ( (this.isGecko) ? ua.substring( (ua.lastIndexOf('gecko/') + 6), (ua.lastIndexOf('gecko/') + 14) ) : -1 );
	this.equivalentMozilla = ( (this.isGecko) ? parseFloat( ua.substring( ua.indexOf('rv:') + 3 ) ) : -1 );
	this.appleWebKitVersion = ( (this.isAppleWebKit) ? parseFloat( ua.substring( ua.indexOf('applewebkit/') + 12) ) : -1 );
	
	// browser version
	this.versionMinor = parseFloat(navigator.appVersion); 
	
	// correct version number
	if (this.isGecko && !this.isMozilla) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('/', ua.indexOf('gecko/') + 6) + 1 ) );
	} else if (this.isMozilla) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('rv:') + 3 ) );
	} else if (this.isIE && this.versionMinor >= 4) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('msie ') + 5 ) );
	} else if (this.isKonqueror) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('konqueror/') + 10 ) );
	} else if (this.isSafari) {
		this.versionMinor = parseFloat( ua.substring( ua.lastIndexOf('safari/') + 7 ) );
	} else if (this.isOmniweb) {
		this.versionMinor = parseFloat( ua.substring( ua.lastIndexOf('omniweb/') + 8 ) );
	} else if (this.isOpera) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('opera') + 6 ) );
	} else if (this.isIcab) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('icab') + 5 ) );
	}
	
	this.versionMajor = parseInt(this.versionMinor); 
	
	// dom support
	this.isDOM1 = (document.getElementById);
	this.isDOM2Event = (document.addEventListener && document.removeEventListener);
	
	// css compatibility mode
	this.mode = document.compatMode ? document.compatMode : 'BackCompat';
	
	// platform
	this.isWin    = (ua.indexOf('win') != -1);
	this.isWin32  = (this.isWin && ( ua.indexOf('95') != -1 || ua.indexOf('98') != -1 || ua.indexOf('nt') != -1 || ua.indexOf('win32') != -1 || ua.indexOf('32bit') != -1 || ua.indexOf('xp') != -1) );
	this.isMac    = (ua.indexOf('mac') != -1);
	this.isUnix   = (ua.indexOf('unix') != -1 || ua.indexOf('sunos') != -1 || ua.indexOf('bsd') != -1 || ua.indexOf('x11') != -1)
	this.isLinux  = (ua.indexOf('linux') != -1);
	
	// specific browser shortcuts
	this.isNS4x = (this.isNS && this.versionMajor == 4);
	this.isNS40x = (this.isNS4x && this.versionMinor < 4.5);
	this.isNS47x = (this.isNS4x && this.versionMinor >= 4.7);
	this.isNS4up = (this.isNS && this.versionMinor >= 4);
	this.isNS6x = (this.isNS && this.versionMajor == 6);
	this.isNS6up = (this.isNS && this.versionMajor >= 6);
	this.isNS7x = (this.isNS && this.versionMajor == 7);
	this.isNS7up = (this.isNS && this.versionMajor >= 7);
	
	this.isIE4x = (this.isIE && this.versionMajor == 4);
	this.isIE4up = (this.isIE && this.versionMajor >= 4);
	this.isIE5x = (this.isIE && this.versionMajor == 5);
	this.isIE55 = (this.isIE && this.versionMinor == 5.5);
	this.isIE5up = (this.isIE && this.versionMajor >= 5);
	this.isIE6x = (this.isIE && this.versionMajor == 6);
	this.isIE6up = (this.isIE && this.versionMajor >= 6);
	
	this.isIE4xMac = (this.isIE4x && this.isMac);
}

var browser = new BrowserDetect();



						 /* CROSS-BROWSER DOM FUNCTIONS *
********************************************************************************
									      */
function xbGetElementById(id) {
	var elm = null
	if (document.getElementById) {
		elm = document.getElementById(id);
	}
	else if (document.all) {
		elm = (document.all[id]) ? document.all[id] : null;
	}
	else if (document.layers) {
		elm = document.layers[id]; // punting on full NS 4 support for now
	}
	return elm;
}

function xbGetElementPageX(elm) {
	var x = 0;
	if (typeof elm.offsetLeft == 'number') {
		while (elm) {
		  x += elm.offsetLeft;
		  elm = elm.offsetParent;
		}
	}
	else if (document.layers) {
		x = elm.pageX; // won't work for image objects
	}
	return x;
}

function xbGetElementPageY(elm) {
	var y = 0;
	if (typeof elm.offsetTop == 'number') {
		while (elm) {
		  y += elm.offsetTop;
		  elm = elm.offsetParent;
		}
	}
	else if (document.layers) {
		y = elm.pageY; // won't work for image objects
	}
	return y;
}

// cross browser event listeners
function xbAddEventListener(elm, evType, fn, useCapture) {
	if (elm.addEventListener) { // DOM
		elm.addEventListener(evType, fn, useCapture);
	}
	else if (elm.attachEvent) { // MSIE
		elm.attachEvent('on' + evType, fn);
	}
	else { // emulation
		if (typeof elm['_eventListeners'] == 'undefined') {
			elm['_eventListeners'] = {}
		}
		if (!elm['_eventListeners'][evType]) {
			elm['_eventListeners'][evType] = [];
			curEvtHandler = elm['on' + evType];
			if (curEvtHandler) {
				elm['_eventListeners'][evType][0] = curEvtHandler; // copy existing event handler
			}
			elm['on' + evType] = xbGenericEventHandler;
		}
		elm['_eventListeners'][evType][elm['_eventListeners'][evType].length] = fn;
	}
}