Searching for a Record using Enter Key from keyboard

Searching for a Record after text type in Text box and press enter 

Page code:

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<apex:page controller="SearchController">

  <apex:form >

  

<script type='text/javascript'> 

function runOnEnter(ev) { 

if (window.event && window.event.keyCode == 13 || ev.which == 13) { 

searchAccRecs(); 

return false; 

} else { 

return true; 

} 

} 

</script> 

  

    <apex:pageblock >

        <apex:inputtext value="{!inputtext}"/>

        <apex:commandbutton value=" Search " action="{!searchRecords}"/>

    </apex:pageblock>

    <apex:pageblock rendered="{!resultblock}">

      <apex:pageblocktable value="{!accList}" var="acc">

        <apex:column value="{!acc.name}"/>

        <apex:column value="{!acc.accountnumber}"/>

      </apex:pageblocktable>

    </apex:pageblock>

  </apex:form>

</apex:page>

Class code:

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public class SearchController {

  public String inputtext { get; set; }

  

  public boolean resultblock { get; set; }

  

  Public List<account> accList{get;set;}

  

  Public SearchController(){

     resultblock = false;

    }    

   public void searchRecords() {

      resultblock = true;

      accList = database.Query('select name,accountnumber from account         where name like '+'\''+'%'+inputtext+'%'+'\'');

    }

}