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Mohan Raj 33Mohan Raj 33 

How To enable and disable the button and make deselected the selected check box in my code

My Controller:
public class AccountEditController {

    public String closePopup { get; set; }

    accountwrapper1 makeEdit;
    List<accountwrapper1> listAccount = new List<accountwrapper1>();
    List<Account> selectableAccount = new List<Account>();
    //set<Account> selectableAccount2 = new set<Account>();
    //public Boolean showPanel {get; set;}
    public Boolean showPopup { get; set; }
   
   public AccountEditController() {
          showPopup = False;
         //showPanel = False;
   }
    
    public List<accountwrapper1> getAccounts() {
        if(listAccount == Null){
            for(Account a: [SELECT Id, Name, BillingCountry, Phone FROM Account])
            listAccount.add(new accountwrapper1(a));
            return listAccount; }
        else{
            listAccount.clear();
            for(Account a: [SELECT Id, Name, BillingCountry, Phone FROM Account])
            listAccount.add(new accountwrapper1(a));
            return listAccount;            
            }           
    }
    
        
     public PageReference getSelectable() {
        // selectableAccount.clear();
        for(accountwrapper1 accwrapper : listAccount){
            if(accwrapper.selected == True){
            selectableAccount.add(accwrapper.acc);
            system.debug('@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@selectableAccount:'+ selectableAccount);
             return Null;
            }                           
        }
       
            return Null;
            
      } 
  
    /*public PageReference Savemeth() {
        for(account acc :selectableAccount ) {
                acc.BillingCountry = BillingCountry;
                selectableAccount2.add(acc);
                 
        }    
    update selectableAccount2;
    showPopup = False;
    return Null;
    
    }*/
    
     public PageReference GetSelectedAccounts()
    {
       if(selectableAccount.size()>0) {
        system.debug(selectableAccount.size());
        system.debug(selectableAccount);
        showPopup = Null;
        return Null;
        }
        else
        showPopup = Null;
        return Null;
    } 
    
    public PageReference showToPopup() {
   // public PageReference showToPanel() {
        showPopUp = True;
        return Null;
        //showPanel  = True;
        }
    
     public string BillingCountry {
        get; 
        set;
    }
    
    
    public PageReference Savemeth() 
    {
        map<Id, Account> mapAccountForUpdate = new map<Id, Account>();
        for(account acc :selectableAccount ) 
        {
            acc.BillingCountry = BillingCountry;
            mapAccountForUpdate.put(acc.Id, acc);
        }    
        update mapAccountForUpdate.values();
        //mapAccountForUpdate = Null;
        selectableAccount.clear();
        
        showPopup = Null;
        BillingCountry = '';
        //showPopup = False;
        return Null;
    }
    
    public PageReference cancelmeth() {        
        return Null;
    }
    
    public PageReference closePopup() {
        showPopup = Null;
        BillingCountry = '';
        //showPopup = False;   
        return Null;
    }
 
     public class accountwrapper1
    {             
        public Account acc{get; set;}      
        public Boolean selected {get; set;}
        public accountwrapper1(Account a)
        {
            acc = a;
            selected = False;
        }
    }
}

My Page:
<apex:page controller="AccountEditController" applyHtmlTag="true">
<head>
    <apex:includeScript value="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" />
</head>
<script>
    $(document).ready(function(){    
        select();        
    });
    
    function select(){
        $('[id*=chkb1]').change(function(){
            
            $("[id*='chkb2']").attr("checked",this.checked);
            getSelectable();
            
        });  
        
        $('[id*=chkb2]').click(function(){
            
            if($('[id*=chkb2]').length== $("[id*='chkb2']: checked").length)
             {          
                 $("[id*='chkb1']").attr("checked",this.checked); 
                 getSelectable();      
                                     
             }
             else
             {    
                 var checkboxes = document.getElementsByTagName('input');
                 var counter = 0;
                 var counter1 = 1;
                 for (var i = 0; i < checkboxes.length; i++) {
                     if (checkboxes[i].type == 'checkbox') {
                         counter++;
                         if(checkboxes[i].checked == true){
                             counter1++;
                         }
                     }
                 }           
                 if(counter==counter1){
                     $("[id*='chkb1']").attr("checked",this.checked);   
                     getSelectable();
                 } else {
                      $("[id*='chkb1']").removeAttr("checked");   
                      getSelectable(); 
                  }                  
             }           
        }); 
    } 

</script>
    <style type="text/css">
    .PopupBackground{
        background-color: white;
        opacity: 0.8;
        filter: alpha(opacity = 20);
        position: absolute;
        width: 100%;
        height: 200%;
        top: -100px;
        left: 10px;
        z-index: 9998;
    }
    .AccountEdit{
        background-color: white;
        border-width: 8px;
        border-style: solid;
        z-index: 9999;
        left: 30%;
        padding:10px;
        position: absolute;
        width: 350px;
        margin-left: 75px;
        top:300px;
    }
    </style>
        <apex:form >
            <apex:actionFunction name="getSelectable" action="{!getSelectable}" reRender="Output"/>
            <apex:pageBlock Title="List of Accounts" >
               
                   <apex:pageBlockButtons location="top">
                        <apex:commandButton value="Get selected Records" action="{!showToPopup}" rerender="Output" id="button"/>
                        <apex:commandButton value="cancelPopup" action="{!closePopup}" rendered="output"/>
                      <!-- <apex:commandButton value="Get selected Records" action="{!showToPanel}" rerender="Output" id="button"/>---->
                   
                   </apex:pageBlockButtons>
                   
                 <!-- {!showPanel}---->
                      <apex:outputPanel id="Output">
                          <apex:outputPanel styleClass="PopupBackground" layout="black" rendered="{!showPopup}">
                              <apex:outputPanel styleClass="AccountEdit" layout="black" rendered="{!showPopup}">
                         <!---  <apex:outputPanel rendered="{!showPanel}">----->
                           <!---{!showPanel}---------->
                               <apex:outputLabel value="BillingCountry: "></apex:outputLabel>
                               <apex:inputText id="BillingCountry" value="{!BillingCountry}" size="40" style="height:13px;font-size:11px;"/><br />                   
                               <center><apex:commandButton value="Save" action="{!Savemeth}" reRender="Initialtable,Output" oncomplete="select()" />
                              <!-- <apex:commandButton value="cancel" action="{!cancelmeth}"/>---->
                               <apex:commandButton value="Cancel" action="{!closePopup}"/></center>
                                </apex:outputPanel>
                            </apex:outputPanel>                   
                        </apex:outputPanel>  
                 <!--   <apex:commandButton value="cancelPopup" action="{!closePopup}"/>--->
                   <apex:pageBlockSection Title="List of Available Accounts" columns="1" collapsible="true">
                            <apex:pageblockTable value="{!accounts}" var="a" id="Initialtable">
                            
                                <apex:column >
                                    <apex:facet name="header">
                                        <apex:inputCheckbox value="{!a.selected}" id="chkb1">
                                            <!-- <apex:actionSupport event="onclick" action="{!getSelectable}" reRender="Output"/>    -->
                                        </apex:inputCheckbox>
                                    </apex:facet>
                                    <apex:inputCheckbox value="{!a.selected}" id="chkb2" />
                                   <!-- <apex:actionSupport event="onclick" action="{!getSelectable}" reRender="Output"/> -->
                                </apex:column>
                                
                                <apex:column headervalue="Account Name" value="{!a.acc.Name}" width="200"/>
                                <apex:column headervalue="Phone" value="{!a.acc.Phone}" width="300"/>
                                <apex:column headervalue="Billing Country" value="{!a.acc.BillingCountry}" width="300"/>
                                                  
                            </apex:pageblocktable>
                   </apex:pageBlockSection>
                    
            </apex:pageblock>
        </apex:form>
</apex:page>

So here I done the update the country value(billing country) to thae appropriate account in the list of table.But I want whether the "Get Selected Records"button available(enable) only  if any one check box are to be checked if no one check box are to be checked it's to be disabled mode and here if I try to change the check box value on un checked in the controller side but I have n't to get it for why means it's leads to once I checked the checkbox and deselect the check box in the same time it's not deselected in here.so Plaese help mee to solve this issue.For answers thanks in advance