I have a form :

1. <div>
   	<form name="CreateIfaceEnvForm" id="CreateIcaceEnvForm" method="post" action="/Grouping/createIfaceEnv.do">
   	<label for="disabled" class="formLabel">Disabled*</label>
   	<select name="disabled" tabindex="1" id="disabled" class="criteria" title="Disabled"> <option value="F">Enabled</option>
   	<option value="T">Disabled</option> </select>
   	<br/> <br/>
   	<label for="interfaceType" class="formLabel">environment*</label>
   	<input type="text" name="interfaceEnvironment" size="10" tabindex="2" value="" id="interfaceEnvironment">
   	<div>
   	<span class="status"> </span>
   	</div>
   	<br/>
   	<input id="createenv" type="submit" name="submit" class="submitbutton" tabindex="3" value='Create Environment' />
   	<a href="/Grouping/listSAIAdmins.do?id=saiAdmins" tabindex="4" class="linkButton">Back To SAI ADMIN</a>
   	</form>
   	</div>

and my js code :

2. $("#interfaceEnvironment").focusout(function () {
3.                   console.log("inside blur");
4.                 var env = $(this).val();
5.                  $(".status").html("<img src='images/loading83.gif'><font color=gray> Checking availability...</font>"); 
6.                 $.ajax({
7.                   url: "isMetadataEnvAvailable.do",
8.                   data: "envname=" + env ,
9.                   success: function(response) {
10.                        if(response.message === "exist"){
11.                            $(".status").html("<font color=red face='arial, sans-serif' size='2px'> This environment already " + response.message + "</font>");   
12.                            $("#createenv").attr("disabled", "disabled");
13.                       }
14.                        else{
15.                         $(".status").html(response.message);  
16.                         $("#createenv").removeAttr("disabled");
17.                     }
18.                   
19.                  }
20.               })            
21.       
22.            }); 

The check availability is working, but the end user got confused with this design, any thought or correction will be appreciated.

Thanks