YAHOO.namespace("example.container");

    function LoadingInProgress() {

        var content = document.getElementById("content");
        
        content.innerHTML = "";

        if (!YAHOO.example.container.wait) {

            YAHOO.example.container.wait = 
                    new YAHOO.widget.Panel("wait",  
                                                    { width: "240px", 
                                                      fixedcenter: true, 
                                                      close: false, 
                                                      draggable: false, 
                                                      zindex:4,
                                                      modal: true,
                                                      visible: false
                                                    } 
                                                );

            YAHOO.example.container.wait.setHeader("Saving, please wait...");
            YAHOO.example.container.wait.setBody("<img src=\"../../Images/Main/ajax-loader.gif\"/>");
            YAHOO.example.container.wait.render(document.body);

        }

        var callback = {
            success : function(o) {
                content.innerHTML = o.responseText;
                content.style.visibility = "visible";
                YAHOO.example.container.wait.hide();
            }
        }
    
        // Show the Panel
        YAHOO.example.container.wait.show();
    }