//
// addLoadEvent()
// Adds event to window.onload without overwriting currently assigned onload functions.
// Function found at Simon Willison's weblog - http://simon.incutio.com/
//
function addLoadEvent(func)
{
    var oldonload = window.onload;
    if (typeof window.onload != 'function'){
        window.onload = func;
    } else {
        window.onload = function(){
        oldonload();
        func();
        }
    }

}

// add event to window.onunload derived from:
// addLoadEvent()
// Adds event to window.onload without overwriting currently assigned onload functions.
// Function found at Simon Willison's weblog - http://simon.incutio.com/
//
function addUnLoadEvent(func)
{
    var oldonload = window.onbeforeunload;
    if (typeof window.onbeforeunload != 'function'){
        window.onbeforeunload = func;
    } else {
        window.onbeforeunload = function(){
        oldonload();
        func();
        }
    }

}

// Browser Detect Lite  v2.1
// http://www.dithered.com/javascript/browser_detect/index.html
// modified by Chris Nott (chris@NOSPAMdithered.com - remove NOSPAM)
//
// modified by Michael Lovitt to include OmniWeb and Dreamcast

function BrowserDetectLite() {
    var ua = navigator.userAgent.toLowerCase();
    this.ua = ua;

    // browser name
    this.isGecko     = (ua.indexOf('gecko') != -1);
    this.isMozilla   = (this.isGecko && ua.indexOf("gecko/") + 14 == ua.length);
    this.isNS        = ( (this.isGecko) ? (ua.indexOf('netscape') != -1) : ( (ua.indexOf('mozilla') != -1) && (ua.indexOf('spoofer') == -1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('opera') == -1) && (ua.indexOf('webtv') == -1) && (ua.indexOf('hotjava') == -1) ) );
    this.isIE        = ( (ua.indexOf("msie") != -1) && (ua.indexOf("opera") == -1) && (ua.indexOf("webtv") == -1) );
    this.isOpera     = (ua.indexOf("opera") != -1);
    this.isKonqueror = (ua.indexOf("konqueror") != -1);
    this.isIcab      = (ua.indexOf("icab") != -1);

    this.isAol       = (ua.indexOf("aol") != -1);
    this.isWebtv     = (ua.indexOf("webtv") != -1);
    this.isOmniweb   = (ua.indexOf("omniweb") != -1);
    this.isDreamcast   = (ua.indexOf("dreamcast") != -1);

    // spoofing and compatible browsers
    this.isIECompatible = ( (ua.indexOf("msie") != -1) && !this.isIE);
    this.isNSCompatible = ( (ua.indexOf("mozilla") != -1) && !this.isNS && !this.isMozilla);

    // browser version
    this.versionMinor = parseFloat(navigator.appVersion);

    // correct version number for NS6+
    if (this.isNS && this.isGecko) {
        this.versionMinor = parseFloat( ua.substring( ua.lastIndexOf('/') + 1 ) );
    }

    // correct version number for IE4+
    else if (this.isIE && this.versionMinor >= 4) {
        this.versionMinor = parseFloat( ua.substring( ua.indexOf('msie ') + 5 ) );
    }

    // correct version number for Opera
    else if (this.isOpera) {
        if (ua.indexOf('opera/') != -1) {
            this.versionMinor = parseFloat( ua.substring( ua.indexOf('opera/') + 6 ) );
        }
        else {
            this.versionMinor = parseFloat( ua.substring( ua.indexOf('opera ') + 6 ) );
        }
    }

    // correct version number for Konqueror
    else if (this.isKonqueror) {
        this.versionMinor = parseFloat( ua.substring( ua.indexOf('konqueror/') + 10 ) );
    }

    // correct version number for iCab
    else if (this.isIcab) {
        if (ua.indexOf('icab/') != -1) {
            this.versionMinor = parseFloat( ua.substring( ua.indexOf('icab/') + 6 ) );
        }
        else {
            this.versionMinor = parseFloat( ua.substring( ua.indexOf('icab ') + 6 ) );
        }
    }

    // correct version number for WebTV
    else if (this.isWebtv) {
        this.versionMinor = parseFloat( ua.substring( ua.indexOf('webtv/') + 6 ) );
    }

    this.versionMajor = parseInt(this.versionMinor);
    this.geckoVersion = ( (this.isGecko) ? ua.substring( (ua.lastIndexOf('gecko/') + 6), (ua.lastIndexOf('gecko/') + 14) ) : -1 );

    // 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) );
    this.isMac   = (ua.indexOf('mac') != -1);
    this.isUnix  = (ua.indexOf('unix') != -1 || ua.indexOf('linux') != -1 || ua.indexOf('sunos') != -1 || ua.indexOf('bsd') != -1 || ua.indexOf('x11') != -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.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 BrowserDetectLite();

/**
*
*  Javascript string pad
*  http://www.webtoolkit.info/
*
**/

var STR_PAD_LEFT = 1;
var STR_PAD_RIGHT = 2;
var STR_PAD_BOTH = 3;

function pad(str, len, pad, dir) {

    if (typeof(len) == "undefined") { var len = 0; }
    if (typeof(pad) == "undefined") { var pad = ' '; }
    if (typeof(dir) == "undefined") { var dir = STR_PAD_RIGHT; }

    if (len + 1 >= str.length) {

        switch (dir){

            case STR_PAD_LEFT:
                str = Array(len + 1 - str.length).join(pad) + str;
            break;

            case STR_PAD_BOTH:
                var right = Math.ceil((padlen = len - str.length) / 2);
                var left = padlen - right;
                str = Array(left+1).join(pad) + str + Array(right+1).join(pad);
            break;

            default:
                str = str + Array(len + 1 - str.length).join(pad);
            break;

        } // switch

    }

    return str;

}