// we know what version of javascript we're dealing with now
// so it's time to start the real script
 

// #############################################
// these are the user defined globals
// modify the following variables to customize the inspection behaviour
 
var requiredVersion = 4;   // version the user needs to view site (max is 5, min is 2)
var useRedirect = false;    // "true" loads new flash or non-flash page into browser
         // "false" embeds movie or alternate html code into current page
 
// set next three vars if useRedirect is true...
var flashPage = "movie.html"  // the location of the flash movie page
var noFlashPage = "noflash.html" // send user here if they don't have the plugin or we can't detect it
var upgradePage = "upgrade.html" // send user here if we detect an old plugin
// #############################################
 
 
 
// *************
// everything below this point is internal until after the body tag
// do not modify! 
// *************
 
// system globals
var flash2Installed = false;  // boolean. true if flash 2 is installed
var flash3Installed = false;  // boolean. true if flash 3 is installed
var flash4Installed = false;  // boolean. true if flash 4 is installed
var flash5Installed = false;  // boolean. true if flash 5 is installed
var maxVersion = 5;     // highest version we can actually detect
var actualVersion = 0;    // version the user really has
var hasRightVersion = false;  // boolean. true if it's safe to embed the flash movie in the page
// write vbscript detection if we're not on mac.
 
var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;  // true if we're on ie
var isWin = (navigator.appVersion.indexOf("Windows") != -1) ? true : false; // true if we're on windows
 
if(isIE && isWin){ // don't write vbscript tags on anything but ie win
 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('</SCR' + 'IPT\> \n'); // break up end tag so it doesn't end our script
}
 
// next comes the standard javascript detection that uses the navigator.plugins array
// we pack the detector into a function so it loads before we run it
 
function detectFlash(){ 

var myArgsAength = detectFlash.arguments.length;

if (myArgsAength > 0 ) {
	if (myArgsAength == 3) { // myArgsLenth if > 0 will be 3 or 4
		useRedirect = detectFlash.arguments[0]; // This value should contain the value true - "true" loads new flash or non-flash page into browser 
		flashPage   = detectFlash.arguments[1]; // This value will contain the location of the flash movie page
		noFlashPage = detectFlash.arguments[2]; // send user here if they don't have the plugin or we can't detect it
		
	}
	if (myArgsAength == 4) { // myArgsLenth if > 0 will be 3 or 4
		useRedirect = detectFlash.arguments[0]; // This value should contain the value true - "true" loads new flash or non-flash page into browser
		flashPage   = detectFlash.arguments[1]; // This value will contain the location of the flash movie page
		noFlashPage = detectFlash.arguments[2]; // send user here if they don't have the plugin or we can't detect it
		upgradePage = detectFlash.arguments[3]; // send user here if we detect an old plugin
	}

}

 if (navigator.plugins){        // does navigator.plugins exist?
  if (navigator.plugins["Shockwave Flash 2.0"]  // yes>> then is Flash 2 
  || navigator.plugins["Shockwave Flash"]){  // or flash 3+ installed?
 
   // set convenient references to flash 2 and the plugin description
   var isVersion2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
   var flashDescription = navigator.plugins["Shockwave Flash" + isVersion2].description;
   // a flash plugin-description looks like this: Shockwave Flash 4.0 r5
   // so we can get the major version by grabbing the character before the period
   // note that we don't bother with minor version detection. do that in your movie with $version
   var flashVersion = parseInt(flashDescription.charAt(flashDescription.indexOf(".") - 1));
 
   // we know the version, now set appropriate version flags
   flash2Installed = flashVersion == 2;  
   flash3Installed = flashVersion == 3;
   flash4Installed = flashVersion == 4;
   flash5Installed = flashVersion == 5;
  }
 }
 
 // loop through all versions we're checking, and set actualVersion to highest detected version
 for (var i = 2; i <= maxVersion; i++) { 
  if (eval("flash" + i + "Installed") == true) actualVersion = i;
 }
 // if we're on webtv, the version supported is 2 (pre-summer2000, or 3, post-summer2000)
 // note that we don't bother sniffing varieties of webtv. you could if you were sadistic...
 if(navigator.userAgent.indexOf("WebTV") != -1) actualVersion = 2; 
 
 // uncomment next line to display flash version during testing
 // alert("version detected: " + actualVersion);
 

 // we're finished getting the version. time to take the appropriate action
 
 if (actualVersion >= requiredVersion) {   // user has a new enough version
  hasRightVersion = true;      // flag: it's okay to write out the object/embed tags later
 
  if (useRedirect) {       // if the redirection option is on, load the flash page
   if(javascriptVersion >= 1.1) {
    window.location.replace(flashPage); // use replace() so we don't break the back button
   } else {
    window.location = flashPage;  // have to use .location if javascript version is less than 1.1
   }
  }
 } else { // user doesn't have a new enough version.
 
  if (useRedirect) {  // if the redirection option is on, load the appropriate alternate page
   if(javascriptVersion >= 1.1) {
    window.location.replace((actualVersion >= 2) ? upgradePage : noFlashPage);
   } else {
    window.location = (actualVersion >= 2) ? upgradePage : noFlashPage;
   }
  }
 }
}