JQuery implements div as popup

Here is the code

<script>  
    function displayForAddingAddress() { 

        $("#addAddress").load("${root}/action/address.action") 

              .dialog({height: 350,                      width: 600, 

                     modal: true});     }  
</script>   
<div id="addAddress" title="Add Address"></div>

The property modal:true will block the background.

load method is loading the content of that url into the target div.