I am writing a code for contacts Custom search. i am able to do search for contacts sucessfully. but i am an issue with render on pageblock .

I have 3 issues.

1. i would like to disable "results " section until search is happened.

2. in below column " Name " is displaying as a column before search. i want to display only after search.

3. any suggestions test code.

appriciated folks your help.

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public with sharing class ContactSearch {

    public List<Contact> contactResults { get; set; }
    public string pageUrl {get; set;}
    public boolean newContact { get; set; }
  
    
    public ContactSearch (){
    	newContact = false;
    	  	
    }
      
    
    public PageReference newcontact() {
    /*PageReference pageUrl = new  PageReference('/003/e?retURL=%2F003%2Fo&RecordType=012i000000079tC&ent=Contact');
    pageUrl.setRedirect(true);
    return pageUrl;*/
    newContact = true;
    pageUrl = URL.getSalesforceBaseUrl().toExternalForm()+'/003/e?retURL=%2F003%2Fo&RecordType=012i000000079tC&ent=Contact';
    return null;
     }
  
    public PageReference Back() {
    	        
    	        PageReference FCPage = new PageReference('/apex/Contact_FindStudent');
            	FCPage.setRedirect(true);
                return FCPage;
        
    }


    public String Back { get; set; }

    public PageReference Clear() {
        return null;
    }
     
  
    public String ClearText { get; set; }

    public String results { get; set; }

    public String searchText { get; set; }
    
    
    public String Name { get; set; }
     
    

    Public PageReference Search() {
    	
       //  List<List<Sobject>> results = [FIND :searchText IN ALL FIELDS RETURNING Contact(Id, Name,Phone,Email)]; 
    	 try { 
    	 contactResults = ContactsService.findContactInSalesforce(searchText);
    	
    	 }
    	 catch (Exception e){} 
    	 return null;
    	 
    	//PageReference pageRef = new PageReference('/_ui/search/ui/UnifiedSearchResults?searchType=2&str='+searchtext);
        //return pageRef ;
        
    }

}

<apex:page Controller="ContactSearch" sidebar="false" id="page">
<p>No peopleSoft Contact found.Please Search Salesforce below Using Name,Phone,email or Other identifying information.</p>
  <apex:includeScript value="/support/console/22.0/integration.js"/>
     <script type="text/javascript">
        function testOpenPrimaryTab() {
          
        
            //Open a new primary tab with the salesforce.com home page in it
            sforce.console.openPrimaryTab(null,'{!pageUrl}', true, 
                'newContact', openSuccess, 'newContact');
        }
        
        var openSuccess = function openSuccess(result){
            //Report whether opening the new tab was successful
            if (result.success == true) {
               // alert('Primary tab can be opened');
            } else {
                //alert('Primary tab cannot be opened');
            }
        };
        
     </script>
 <apex:form id="frm">
             <!--  <apex:image url="{!$Resource.Contactshome}" width="50" height="50"/>-->
            
     <apex:pageBlock mode="edit" id="block">
 
         <apex:pageBlockSection id="pbSectn">
            <apex:pageBlockSectionItem id="pbSitem" >
               <apex:outputLabel for="searchText">Search Salesforce Contacts</apex:outputLabel> 
               <apex:panelGroup >
                  <apex:inputText id="searchText" value="{!searchText}"/> <br/><br/>
                  <apex:commandButton value="Search" action="{!search}" />
                   <apex:commandButton value="Clear" action="{!Clear}" onclick="clearValue()"/>
                   <apex:commandButton value="Back" action="{!Back}"/>
                                      
                                         
               </apex:panelGroup>
         </apex:pageBlockSectionItem>
        </apex:pageBlockSection>  
         <apex:pageBlockSection Title="Results" id="results" columns="1"  > 
          <apex:outputPanel style="text-align:center" layout="block" >
         <apex:commandbutton value="New Contact" action="{!newcontact}" style="float: centre;"  rendered="true" onclick="testOpenPrimaryTab():return false;"/>
          <script>
            testOpenPrimaryTab();
            return false
           </script>
         </apex:outputPanel>
          <apex:pageBlockTable value="{!contactResults}" var="c">
                  <apex:column headerValue="Name" > 
                       <apex:outputLink value="/{!c.Id} " >{!c.name}</apex:outputLink>
                  </apex:column>
                  <apex:column value="{!c.emplid__c}"> </apex:column> 
                  <apex:column value="{!c.Phone}" ></apex:column> 
                  <apex:column value="{!c.Email}" ></apex:column> 
                       
       </apex:pageBlockTable>
   </apex:pageBlockSection>
</apex:pageBlock>
</apex:form>
<script type = "text/javascript">
   function clearValue()
    {
    document.getElementById('{!$Component.page:frm:block:pbSectn:pbSitem:searchText}').value = '';   
   
    return false;
   
 }
   </script>

</apex:page>