/*
'---- ------------------------------------------------------------------
'---- File Name:		scrSiteFlashCheck.js		                                  	
'---- Date:			08/22/03                            	
'---- Copyright:		SVM Copyright 2003                        	
'---- Template Author:	Emily Treganowan  
'---- Script Author:	     					
'---- Purpose:			Detect if user has flash 5+ or not                       			
'---- Notes:				
'---- ------------------------------------------------------------------
*/

var requiredVersion = 5;                        //version the user needs to view site (max is 5, min is 2)

// 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 flash6Installed = false;            //boolean. true if flash 5 is installed
var maxVersion = 6;                     // highest version we can actually detect
var actualVersion = 0;                  //version the user really has
var hasRightVersionFlash = false;            //boolean. true if it's safe to embed the flash movie in the page
var hasRightVersionBrowser = false;            //boolean. true if user has NN6+ or IE4+
var jsVersion = 1.0;                    //the version of javascript supported

// check the browser...we're looking for ie/win
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

// this is a js1.1 code block, so make note that js1.1 is supported.

jsVersion = 1.1;

// write vbscript detection if we're not on mac.
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 detectFlashBrowser() { 

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;
      flash6Installed = flashVersion == 6;
                }
        }
        
        // 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
            hasRightVersionFlash = true;                        //flag: it's okay to write out the object/embed tags later
        } else {        // user doesn't have a new enough version.
		  hasRightVersionFlash = false;
        }

}

detectFlashBrowser();  // call our detector now that it's safely loaded.