Hi Every One,

I have created a Vf page, In this when ever we mouseover the output lable it needs to rerender the pageblock table but it is not diplaying. Please help me on this,
VF:
<apex:page controller="exampleCon">
    <apex:form >
        <apex:outputpanel id="counter">
            <apex:outputText value="Click Me!: {!count}"/>
            <apex:actionSupport event="onmouseover"
                                action="{!incrementCounter}"
                                rerender="op" status="counterStatus"/>
        </apex:outputpanel>
        <apex:actionStatus id="counterStatus"
                           startText=" (incrementing...)"
                           stopText=" (done)"/>
                       
         <apex:outputpanel id="op" rendered="{!opc}">                  
            <apex:pageBlock id="pb" >
                <apex:pageBlockTable value="{!acc}" var="a">
                    <apex:column value="{!a.Name}"/>
                </apex:pageBlockTable>
           </apex:pageBlock>
       </apex:outputpanel>
    </apex:form>
</apex:page>

Controller:
/***  Controller: ***/
public class exampleCon {
    Integer count = 0;
    public boolean opc {get; set;}
    public Account acc{get; set;}
   
   public exampleCon(){
       opc=false;
   }             
    public PageReference incrementCounter() {
            opc=true;
            count++;
            display();
            return null;
    }
    public PageReference display() {
            opc=true;
             acc=[select id,Name from Account limit 1];
             system.debug('>>>>>>>xxx>>>>>>>>>>');
            return null;
    }
                    
    public Integer getCount() {
        return count;
    }
}

Please correct me where i did mistake.