Hi There,

Im recently developing a form using VF pages and with tabbed interface. I noticed that eventhough I have included the SwitchType property to client on my tabpanel, i couldn't navigate among tabs.
But when i set either the sidebar or showHeader properties to false on the Apex:page, I was able to navigate among tabs. It was realy frustating and not what i wanted at all. Please kindly help me on this. Here is my VF code.

<apex:page standardController="Custom_object__c" showHeader="true" sidebar="true" id="thePage" tabStyle="Custom_object__c">
<apex:sectionHeader title="Test" subtitle="Test"/>
    <style>
      .activeTab {background-color: #236FBD; color:white;
         background-image:none}
      .inactiveTab { background-color: lightgrey; color:black;
         background-image:none}
   </style>

      <apex:tabPanel switchType="client" id="TabPanel" selectedTab="tabMain" inactiveTabClass="inactiveTab" activeTabClass="activeTab"> 
      <apex:tab label="Main" name="MainTab" id="tabMain">       
         <apex:form >
             <apex:pageBlock >
                 <Apex:pageBlockSection title="Main Details" columns="2">
                     <apex:inputField value="{!Custom_object__c.name}"/>
                     <apex:inputField value="{!Custom_object__c.Buyer__c}"/>            
                 </Apex:pageBlockSection>
                 <apex:pageBlockButtons >
                    <apex:commandButton action="{!save}" value="Save"/>
                </apex:pageBlockButtons>           
             </apex:pageBlock>        
         </apex:form> 
                
      </apex:tab>    
      <apex:tab label="tab 2" name="Tab2" id="tab2">    
       <apex:form >
             <apex:pageBlock title="Tab 2 deytails">
                 <Apex:pageBlockSection title="Details" columns="2">
                     <apex:inputField value="{!Custom_object__c.Bank_Account_Name__c}"/>
                     <apex:inputField value="{!Custom_object__c.Bank_Account_Number__c}"/>               
                 </Apex:pageBlockSection>
                 <apex:pageBlockButtons >
                    <apex:commandButton action="{!save}" value="Save"/>
                </apex:pageBlockButtons>           
             </apex:pageBlock>         
         </apex:form> 
      </apex:tab>    
   </apex:tabPanel>
</apex:page>