////////////////////////////////////////////////////////////
//	Images
////////////////////////////////////////////////////////////

function js_preloadImages() 
{ //v1.2
  if (document.images) 
  {
    var imgFiles = js_preloadImages.arguments;
    var preloadArray = new Array();
    for (var i=0; i<imgFiles.length; i++) {
      preloadArray[i] = new Image;
      preloadArray[i].src = imgFiles[i];
    }
  }
}

// swap one image list for another
function js_swapImage() 
{
  var i, theObj, j=0, swapArray=new Array, oldArray=document.js_swapImgData;
  for (i=0; i < (js_swapImage.arguments.length-2); i+=3) 
  {
    theObj = eval(js_swapImage.arguments[(navigator.appName == 'Netscape')?i:i+1])
    if (theObj != null) 
    {
      // Save the current image source
      swapArray[j++] = theObj;
      swapArray[j++] = (oldArray==null || oldArray[j-1]!=theObj) ? theObj.src : oldArray[j];

      // Swap in the new image source
      theObj.src = js_swapImage.arguments[i+2];
    } 
  }
  document.js_swapImgData = swapArray; //used for restore
}

// restore to saved state
function js_swapImgRestore()
{
  js_swapImgRestoreTo(document.js_swapImgData);
}

// restore to specified state
function js_swapImgRestoreTo(restoreData)
{
  var restoreArray = restoreData;
  if (restoreArray != null)
    for (var i=0; i<(restoreArray.length-1); i+=2)
      restoreArray[i].src = restoreArray[i+1];
}

// clear saved state
function js_swapImgClear()
{
	var restoreArray = document.js_swapImgData;
	document.js_swapImgData = null;
	return restoreArray;
}


////////////////////////////////////////////////////////////
//	Windows
////////////////////////////////////////////////////////////

// nCorner <0-TopLeft, 1-BottomLeft, 2-TopRight, 3-BottomRight(default)>
function js_popUpWindow(url, winName, W, H, nCorner, scrollbars, bPrintable) 
{ //v1.1

  var popWindow = "";
  var restoreArray = document.js_popupWindowData;
  if (restoreArray == null)
    restoreArray = new Array;

  if ( scrollbars == null || scrollbars != "yes" )
     scrollbars = "no";

  // default to bottom right
  if ( nCorner == null || nCorner < 0 || nCorner > 3 )
  	nCorner = 3;

  var X = 0;
  var Y = 0;
  
  switch(nCorner)
  {
     case 0:	// TopLeft
     {
        X = 0;
        Y = 0;
        break;
     }
     case 1:	// BottomLeft
     {
        X = 0;
        Y = screen.availheight-H-10;
        break;
     }
     case 2:	// TopRight
     {
        X = screen.availWidth-W-10;
        Y = 0;
        break;
     }
     case 3:	// Botttom Right
     {
        X = screen.availWidth-W-10;
        Y = screen.availheight-H-10;
        break;
     }
  }

  // Close any open popup windows first, to allow the new window to open at the specified size
  // Only do this for the PC since the Mac browsers have problems recycling windows after they are closed
  if ( !(navigator.appVersion.indexOf("Mac") != -1) ) // not Mac
	js_closePopUpWindows();

  // Open the window at the specified size
  if ( bPrintable == null || bPrintable == 0 )
    popWindow=window.open(url,winName,'menubar=no,toolbar=no,location=no,directories=no,status=no,resizable,width='+W+',height='+ H + ',scrollbars=' + scrollbars);
  else
    popWindow=window.open(url,winName,'menubar=yes,toolbar=yes,location=no,directories=no,status=no,resizable,width='+ W +',height=' + H +',scrollbars=' + scrollbars);

  // Position the window and give it focus
  popWindow.moveTo(X, Y);
  popWindow.focus();

  // Update the restore array
  restoreArray[restoreArray.length] = popWindow;

  // Save the restore array
  document.js_popupWindowData = restoreArray;
}

function js_closePopUpWindows()
{
  var restoreArray = document.js_popupWindowData;

  if (document.js_popupWindowData != null)
  {
    var i = 0;
    for ( i = 0; i < document.js_popupWindowData.length; i++)
    {
      // Close the window if it is still open
      if (document.js_popupWindowData[i] != "" && document.js_popupWindowData[i].closed != true) // JS 1.1
         document.js_popupWindowData[i].close();
    }

    document.js_popupWindowData = null;
  }
}


////////////////////////////////////////////////////////////
//	goToURL
////////////////////////////////////////////////////////////

function js_goToURL(url) 
{
  if (url != "") { self.location=url; }
}


////////////////////////////////////////////////////////////
//	Layers
////////////////////////////////////////////////////////////

function js_showHideLayers() 
{
  var i, visStr, args;
  args = js_showHideLayers.arguments;
  for (i=0; i < (args.length-2); i+=3) 
  { 
    //with arg triples (objNS,objIE,visStr)
    visStr   = args[i+2];

    if (navigator.appName == 'Netscape') 
    {
      if (document.layers != null) eval(args[i]+".visibility = '"+visStr+"'");
    } 
    else //IE
    { 
      if (visStr == 'show') visStr = 'visible'; //convert vals
      if (visStr == 'hide') visStr = 'hidden';
      if (document.all != null) eval(args[i+1]+".style.visibility = '"+visStr+"'");
    } 
  }
}

////////////////////////////////////////////////////////////
//	Localization
////////////////////////////////////////////////////////////
// Cached global variable to store language choice (must be initialized by calling HTML page as below)
// parent.m_idLanguage = js_getLanguage("SiteCookieName");

// Set the selected language for the site
// Note: Need cookies.js to be included to call this
function js_setLanguage(idLanguage, siteCookieName)
{
	var expdate = new Date();
	js_fixCookieDate(expdate); // correct Mac date bug
	expdate.setTime (expdate.getTime() + (4368 * 60 * 60 * 1000)); // 6 months (24*463) hrs from now 
	
	// Create a sub cookie called "PreferredLanguage" to save this setting
	js_setSubcookie(siteCookieName,"PreferredLanguage",idLanguage,expdate,"/");

	// Update globally cached variable
	parent.m_idLanguage = idLanguage;
}

// Return the setting from the PreferredLanguage cookie
// Returns null if no language cookie found
// Note: Need cookies.js to be included to call this
function js_getLanguage(siteCookieName)
{
	var idLanguage = js_getSubcookie(siteCookieName,"PreferredLanguage");
	return ( idLanguage == "" ) ? null : idLanguage;
}



////////////////////////////////////////////////////////////
//	Playing media files
////////////////////////////////////////////////////////////

function js_canPlayEmbeddedMP3()
{
  	// No known Mac browsers support embedded MP3's yet
  	if ( navigator.appVersion.indexOf("Mac") != -1 ) // Mac browser
	{
		return false;
	}
	else if (navigator.appName == "Netscape")
	{
		// All current versions of Netscape are unable to play embedded MP3's
		return false;
//		var mimeType = navigator.mimeTypes["audio/x-mpeg"];
//		if  ( mimeType == null || mimeType.enabledPlugin == null )
//			return false;
	}
	else
	{
		// check if IE can handle mp3
	}
	return true;
}

function js_canPlayEmbeddedWAV()
{
	if (navigator.appName == "Netscape")
	{
		// All current versions of Netscape are unable to play embedded WAV's
		return false;
//		var mimeType = navigator.mimeTypes["audio/x-wav"];
//		if  ( mimeType == null || mimeType.enabledPlugin == null )
//			return false;
	}
	else
	{
		// check if IE can handle embedded WAV
	}
	return true;
}

// Cached global variable to enable/disable sounds (must be initialized by calling HTML page as below)
// parent.m_bEnableSounds = js_isSoundEnabled("SiteCookieName");


// Note: Need cookies.js to be included to call this
function js_enableSound(bEnable, siteCookieName)
{
	var expdate = new Date();
	js_fixCookieDate(expdate); // correct Mac date bug
	expdate.setTime (expdate.getTime() + (4368 * 60 * 60 * 1000)); // 6 months (24*463) hrs from now 
	
	// Create a sub cookie called "EnableSoundEffects" to save this setting
	js_setSubcookie(siteCookieName,"EnableSoundEffects",bEnable,expdate,"/");

	// Update globally cached variable
	parent.m_bEnableSounds = bEnable;
}

// Return the setting from the EnableSoundEffects cookie
// Note: Need cookies.js to be included to call this
function js_isSoundEnabled(siteCookieName)
{
	var bEnableSounds = js_getSubcookie(siteCookieName,"EnableSoundEffects");
	if ( bEnableSounds == "" )
	{
		// No cookie yet, write one out
		js_enableSound(js_canPlayEmbeddedMP3(), siteCookieName);
		bEnableSounds = js_getSubcookie(siteCookieName,"EnableSoundEffects");
	}	
	return bEnableSounds == "true" ? true : false;
}

function js_playSound(theSound)
{
	if (parent.m_bEnableSounds == true)
	{
		if (navigator.appName == "Netscape")
		{
			if ( document[theSound] != null )
			{
				document[theSound].play(false);
				return true;
			}
		}
		else
		{
			if ( document.embeds[theSound] != null )
			{
				document.embeds[theSound].play();
			//	document.embeds[theSound].Run();
				return true;
			}
		}
	}
	return false;
}

////////////////////////////////////////////////////////////
//	Get URL parameters
////////////////////////////////////////////////////////////
function js_getParamValue(name, win) 
{ 
	if (!(win)) 
		win = window;
	name += "="; 
	var nPos1 = win.location.href.indexOf(name); 
	if (nPos1 < 0) 
		return ""; 
	var nPos2 = win.location.href.indexOf("&", nPos1); 
	return unescape( nPos2 >= nPos1  ? win.location.href.substring(nPos1 + name.length, nPos2) 
					 : win.location.href.substring(nPos1 + name.length) );
} 

////////////////////////////////////////////////////////////
//	Randomization 
////////////////////////////////////////////////////////////
function js_getRandomNum(lbound, ubound) 
{
	return (Math.floor(Math.random() * (ubound - lbound)) + lbound);
}

function js_getRandomChar(number, lower, upper, other, extra) 
{
	var numberChars = "0123456789";
	var lowerChars = "abcdefghijklmnopqrstuvwxyz";
	var upperChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
	var otherChars = "`~!@#$%^&*()-_=+[{]}\\|;:'\",<.>/? ";
	var charSet = extra;
	if (number == true)
	charSet += numberChars;
	if (lower == true)
	charSet += lowerChars;
	if (upper == true)
	charSet += upperChars;
	if (other == true)
	charSet += otherChars;
	return charSet.charAt(js_getRandomNum(0, charSet.length));
}

function addBookmark( bookmarkurl, bookmarktitle )
{
	if (document.all)
	{
		window.external.AddFavorite(bookmarkurl, bookmarktitle);
	}
}


function js_getPassword(length, extraChars, firstNumber, firstLower, firstUpper, firstOther,
		latterNumber, latterLower, latterUpper, latterOther) 
{
	var rc = "";
	if (length > 0)
	rc = rc + js_getRandomChar(firstNumber, firstLower, firstUpper, firstOther, extraChars);
	for (var idx = 1; idx < length; ++idx) 
	{
		rc = rc + js_getRandomChar(latterNumber, latterLower, latterUpper, latterOther, extraChars);
	}
	return rc;
}

/*
function CallFunc(exp, wait) 
{ 
	wait = (wait == null) ? 1 : wait; setTimeout(exp, wait); 
} 
*/