var  acrobat=new  Object();  
var Check_result;
 
//  Set  some  base  values  
acrobat.installed=false;  
acrobat.version='0.0';  
 
if  (navigator.plugins  &&  navigator.plugins.length){  
           for  (x=0;  x<navigator.plugins.length;  x++){  
                       if  (navigator.plugins[x].description.indexOf('Adobe  Acrobat')  !=  -1){  
 
                                   acrobat.version=parseFloat(navigator.plugins[x].description.split('Version  ')[1]);  
 
                                   if  (acrobat.version.toString().length  ==  1)  acrobat.version+='.0';  
 
                                   acrobat.installed=true;  
                                   break;  
                       }  
           }  
}  
else  if  (window.ActiveXObject){  
           for  (x=2;  x<10;  x++){  
                       try{  
                                   oAcro=eval("new  ActiveXObject('PDF.PdfCtrl."+x+"');");  
                                   if  (oAcro){  
                                               acrobat.installed=true;  
                                               acrobat.version=x+'.0';  
 
                                   }  
                       }  
                       catch(e)  {}  
           }  
 
           try{  
                       oAcro4=new  ActiveXObject('PDF.PdfCtrl.1');  
                       if  (oAcro4)  
                       {  
                                   acrobat.installed=true;  
                                   acrobat.version='4.0';  
                       }  
           }  
           catch(e)  {}  
 
           try{  
                       oAcro7=new  ActiveXObject('AcroPDF.PDF.1');  
                       if  (oAcro7)  
                       {  
                                   acrobat.installed=true;  
                                   acrobat.version='7.0';  
                       }  
           }  
           catch(e)  {}  
}  
 
acrobat.ver4=(acrobat.installed  &&  parseInt(acrobat.version)  ==  4)  ?  true:false;  
acrobat.ver5=(acrobat.installed  &&  parseInt(acrobat.version)  ==  5)  ?  true:false;  
acrobat.ver6=(acrobat.installed  &&  parseInt(acrobat.version)  ==  6)  ?  true:false;  
acrobat.ver7=(acrobat.installed  &&  parseInt(acrobat.version)  ==  7)  ?  true:false;  
acrobat.ver8=(acrobat.installed  &&  parseInt(acrobat.version)  ==  8)  ?  true:false;  
acrobat.ver9=(acrobat.installed  &&  parseInt(acrobat.version)  ==  9)  ?  true:false;  
 
var  acrobatVersionElement  =  document.getElementById("acrobatVersion");  
 
if  (acrobat.version  ==  0.0){  
           Check_result+="<br/>Adobe  Reader  is  NOT  installed.";
           if(window.confirm("阅读软件AdobeReader8.0简体中文版没有安装，您要下载安装吗？"))   
   		   window.open("http://ardownload.adobe.com/pub/adobe/reader/win/8.x/8.0/enu/AdbeRdr80_en_US.exe") 
}else{  
           Check_result+="<br/>Adobe  Reader  version  :  "+acrobat.version;  
}  
//alert (Check_result);