function flashChecker() {  
  var hasFlash = 0;　　　　 // 是否安装了flash
  var flashVersion = 0;　　 // flash版本
  if(document.all) {  
    var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');  
    if(swf) {  
      hasFlash = 1;  
      VSwf = swf.GetVariable("$version");  
      flashVersion = parseInt(VSwf.split(" ")[1].split(",")[0]);  
    }  
  } else {  
    if(navigator.plugins && navigator.plugins.length > 0) {  
      var swf = navigator.plugins["Shockwave Flash"];  
      if(swf) {  
        hasFlash = 1;  
        var words = swf.description.split(" ");  
        for(var i = 0; i < words.length; ++i) {  
          if(isNaN(parseInt(words[i]))) continue;  
          flashVersion = parseInt(words[i]);  
        }  
      }  
    }  
  }  
  return { f: hasFlash, v: flashVersion };  
}