function getxmlhttp()
{
    var xmlhttp=null;
    // code for Mozilla, etc.
    if (window.XMLHttpRequest)
    {
      
        xmlhttp=new XMLHttpRequest();
        if (xmlhttp.overrideMimeType) 
        {
           xmlhttp.overrideMimeType('text/xml');
        }

    }
    // code for IE
    else if (window.ActiveXObject)
    {  
        try 
        {
             xmlhttp= new ActiveXObject("Msxml2.XMLHTTP");
        } 
        catch (e) 
        {
            try 
            {
                 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
            } 
            catch (e) 
            {        

            }
        }  
    }
    return xmlhttp;
}

function hidepanel()
{
    YAHOO.example.container.wait.hide();
}

function openpanel()
{             
    YAHOO.namespace("example.container");    
    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("Loading, please wait...");
    YAHOO.example.container.wait.setBody("<img src=\"/images/loading_big.gif\"/>");
    YAHOO.example.container.wait.render(document.body);
    YAHOO.example.container.wait.show();
}

function displayloading(control,x,y)
{  
    var obj = document.getElementById(control);      
    YAHOO.namespace("example.container");    
    YAHOO.example.container.wait = 
        new YAHOO.widget.Panel("wait",  
                                        { width: "240px",                                            
                                          Y:x,                                      
                                          X:y,   
                                          fixedcenter: false, 
                                          close: false, 
                                          draggable: false, 
                                          zindex:4,
                                          modal: false,
                                          underlay :"none",
                                          visible: false
                                        } 
                                    );

    YAHOO.example.container.wait.setHeader("Loading, please wait...");
    YAHOO.example.container.wait.setBody("<img src=\"/images/loading_big.gif\"/>");
    YAHOO.example.container.wait.render(obj);
    YAHOO.example.container.wait.show();
}