JavaScript Alert/Popup on Button Click

Visualforce page code :-

<apex:page standardController="account">

  <apex:includeScript value="{!$Resource.home2}"/>
   <apex:form >
     <br></br>
      Enter Your Name <br></br> <apex:inputField styleClass="text" value="{!account.name}"/>
      <br></br>
       <apex:commandButton value="Show Javascript Alert" styleClass="but1" reRender="abc"/>
   </apex:form>
    
     <script>
        $(document).ready(function(){
          $(".but1").click(function(){
            alert("Hello Mr. "+$(".text").val());
            });
        });
     </script>
</apex:page>

 Output Screen 1 :-

Output Screen 2 :-