Hello

My requirement is to  displayed a table with two chexbox columns and allow the user to select only one checkbox in each column.

The below code is working fine for only one column. first when i select first checkbox in mastercolumn and then select 2nd checkbox in the same mastercolumn then it is automatically deselecting the first and selecting the 2nd using the below code.

But when i select any checkbox in the duplicatecolumn then the checkbox selected in the mastercolumn is getting deselected.

Does anyone have any idea on how to resolve this issue?..please advise.....Thanks in advance

<apex:page tabStyle="Account" controller="Account_controller" action="{!init}">
<script>
var selectedChkbox;
function deSelectOthers(chkBox)
{
if (chkBox.checked)
{
if ((chkBox != selectedChkbox) && (selectedChkbox != null))
{
selectedChkbox.checked = false;
}
selectedChkbox = chkBox;
}
}
</script>
<apex:form >

<apex:pageBlock>
<apex:panelGrid id="AccountDetail" columns="1" width="150%">
<apex:pageBlock id="page1">
<apex:pageBlockButtons location="Bottom">
<apex:commandButton action="{!continue1}" value="Continue"/>
</apex:pageBlockButtons>

<apex:pageBlockSection title="Select Master and Dupe records">
<apex:pageBlockTable value="{!AccountResults}" var="acc" rules="all" width="150%">
<apex:column headerValue="Master">
<apex:outputPanel id="op1">
<apex:inputCheckBox value="{!Mstchk}" id="master_Checkbox" disabled="{!Mstchk}" onclick="deSelectOthers(this)">
</apex:inputCheckBox>
</apex:outputPanel>
<script>
if ("{!Mstchk}" == "true")
{
var idForSelectedBox = "$component.master_Checkbox";
selectedChkbox = document.getElementById(idForSelectedBox);
}

</script>
</apex:column>
<apex:column headerValue="Duplicate">
<apex:outputPanel id="op2">
<apex:inputCheckBox value="{!Dupchk}" id="duplicate_Checkbox" disabled="{!Dupchk}" onclick="deSelectOthers(this)">
</apex:inputCheckBox>
</apex:outputPanel>
<script>
if ("{!Dupchk}" == "true")
{
var idForSelectedBox = "$component.duplicate_Checkbox";
selectedChkbox = document.getElementById(idForSelectedBox);
}
</script>

</apex:column>
<apex:column headerValue="Name" value="{!acc.Name}">
</apex:column>
<apex:column headerValue="Owner" value="{!acc.Owner.Name}">
</apex:column>
</apex:pageBlockTable>
</apex:pageBlockSection>

</apex:pageBlock>
</apex:panelGrid>
</apex:form>
</apex:page>

public class Account_controller

{
private String searchText;
private Boolean Dupchk;
private Boolean Mstchk;
public string AName;
Id AcctId =ApexPages.currentPage().getparameters().get('id');
public Account acctName;
List<Account> AccountResults=null;

public List<Account> getAccountResults()
{
return AccountResults;
}

public Boolean getDupChk()
{
return Dupchk;
}
public void setDupChk (Boolean Dupchk)
{
this.Dupchk = Dupchk;

}

public Boolean getMstChk()
{
return Mstchk;
}
public void setMstChk (Boolean Mstchk)
{
this.Mstchk = Mstchk;

}


public string getSearchText()
{
return AName;
}
public void setSearchText (String searchText)
{
this.searchText = searchText;
}

public PageReference continue1()
{
return null;
}

public PageReference init()
{
acctName=[Select Name from Account where id=:AcctId];
AName=acctName.Name;
return null;
}

public void search()
{
try
{
AccountResults= (List<Account>)[select Id, Name, Type, BillingStreet,Billingcity,BillingState,BillingPostalCode,Owner.Name from Account where Name like: searchText+'%'];

}
catch (Exception e)
{
AccountResults = (List<Account>)null;
System.Debug('Error in search criteria.');
}
}

public Class AccountResults
{
public Account Acc
{
get;
set;
}
public Boolean selected
{
get;
set;
}
public AccountResults(Account a)
{
Acc=a;
selected=false;
}
}
}