Loading contents dynamically in to jQuery Dialog

var $dialog = $("#html-div").html("Loading...")    // can use  image
        .dialog({
            autoOpen: false,
            title:"Title",
            modal: true,
            width: 750,
            height : 300
        })
        .load(ActionUrl",{          
            param1:value1,               // setting parameter values to send to server
            param2:value2
        },function(){
                   // write events for loaded  contents         
        });
       
        $dialog.dialog( "open" );    // open the dialog box