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//                                   DetectFlash.js                                         //
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/*

  The "detect flash" javascript file enables you to interchange random flash movies/ or images if the user
  doesn't have the flash plugin.
  
  1.  To use this javascript file make sure it is referenced accordingly in the "header" of your HTML file.
  
  2.  Next place the below anywhere you need the flash/image to appear in your HTML document:
      
      for a single flash animation or image use this:
      <script type="text/javascript" language="javascript">checkFlash(WIDTH, HEIGHT,'graphics/flash/someFLASH1.swf',
	  'graphics/someIMAGE1.gif');</script>
      
	  
      for multiple flash animations or images use this (you can have as many flash animations and images as you want, 
	  just keep adding to the end):
      <script type="text/javascript" language="javascript">checkFlash(WIDTH, HEIGHT,'graphics/flash/someFLASH1.swf',
	  'graphics/someIMAGE1.gif', 'graphics/flash/someFLASH2.swf','graphics/someIMAGE2.gif', 'graphics/flash/someFLASH3.swf',
	  'graphics/someIMAGE3.gif');</script>

*/

//-----------------------------------------------------------------------------------------//

var actualVersion = 0;          // version the user has
var requiredVersion = 4;        // version we planned for, feel free to change 
var maxVersion = 6;             // highest version currently detectable, i'm sure that'll change soon
	
var flash2Installed = false;    // true if flash 2 installed
var flash3Installed = false;    // true if flash 3 installed
var flash4Installed = false;    // true if flash 4 installed
var flash5Installed = false;    // true if flash 5 installed
var flash6Installed = false;    // true if flash 6 installed

//var hasRightVersion = false;    // true if embeding is to proceed

//-----------------------------------------------------------------------------------------//

  function detectFlash(){

    if (navigator.plugins) {

      if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {

        var isVersion2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
        var flashDescription = navigator.plugins["Shockwave Flash" + isVersion2].description;
        var flashVersion = parseInt(flashDescription.charAt(flashDescription.indexOf(".") - 1));
        
        flash2Installed = flashVersion == 2;    
        flash3Installed = flashVersion == 3;
        flash4Installed = flashVersion == 4;
        flash5Installed = flashVersion == 5;
        flash6Installed = flashVersion >= 6;

      }
    }

    for (var i = 2; i <= maxVersion; i++) {  
      if (eval("flash" + i + "Installed") == true) actualVersion = i;
    }

    if(navigator.userAgent.indexOf("WebTV") != -1) actualVersion = 3;  

    if (actualVersion >= requiredVersion){
	  return true;
	}  
    else{
	  return false;
	}
}

//-----------------------------------------------------------------------------------------//
  
  
  function rotateFlashImages(picWidth, picHeight){
    
    
    var hasRightVersion = detectFlash();
    var rotate;
    var increment = 0;
    
    imageRotate = new Array();
    imageRotate = rotateFlashImages.arguments[2].split(",");;
	
    rotate = Math.floor(Math.random()*imageRotate.length);
    
    //alert(imageRotate[rotate]);
    
    if(hasRightVersion){
      var flashImage = '<OBJECT CLASSID="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'
                     + 'WIDTH="'+picWidth+'" HEIGHT="'+picHeight+'"'
                     + 'CODEBASE="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab">'
                     + '<PARAM NAME="MOVIE" VALUE="'+imageRotate[rotate]+'">'
                     + '<PARAM NAME="PLAY" VALUE="true">'
                     + '<PARAM NAME="LOOP" VALUE="false">'
                     + '<PARAM NAME="QUALITY" VALUE="high">'
                     + '<PARAM NAME="MENU" VALUE="false">'
                     + '<EMBED SRC="'+imageRotate[rotate]+'"'
                     + 'WIDTH="'+picWidth+'" HEIGHT="'+picHeight+'"' 
                     + 'PLAY="true"'
                     + 'LOOP="false"'
                     + 'QUALITY="high"'
                     + 'MENU="false"'
                     + 'TYPE="application/x-shockwave-flash"'
                     + 'PLUGINSPAGE="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash"></EMBED></OBJECT>';
        
    }else{
      var flashImage = '<IMG SRC="'+imageRotate[rotate]+'" HEIGHT="'+picHeight+'" WIDTH="'+picWidth+'" ALT="A Random Image">';
    }
    
    document.write(flashImage);
	 
  }

  
//-----------------------------------------------------------------------------------------//

  function checkFlash(picWidth, picHeight){
    
    var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false; 
	var isWin = (navigator.appVersion.indexOf("Windows") != -1) ? true : false; 
	
	if(isIE && isWin){
  	  document.write('<SCR' + 'IPT LANGUAGE=VBScript\> \n');
  	  document.write('on error resume next \n');
  	  document.write('flash2Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.2"))) \n');
  	  document.write('flash3Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.3"))) \n');
  	  document.write('flash4Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.4"))) \n');
  	  document.write('flash5Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.5"))) \n');  
  	  document.write('flash6Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.6"))) \n');  
  	  document.write('</SCR' + 'IPT\> \n');
	}

    var hasRightVersion = detectFlash();
    
    var imageRotate = new Array();
    var increment = 0;
   
    if(hasRightVersion){
      for(var i=2; i<checkFlash.arguments.length; i++){
        if(i%2==0)imageRotate[increment++] = checkFlash.arguments[i];
      }
    }else{
      for(var i=2; i<checkFlash.arguments.length; i++){
        if(i%2==1)imageRotate[increment++] = checkFlash.arguments[i];
      }
    }

    rotateFlashImages(picWidth,picHeight,imageRotate.join());
	
  }

//-----------------------------------------------------------------------------------------//