function ajaxUpdate(vs_url) {
    
   // document.getElementById(vs_obj).className="loading_on";

    var xmlObj = null;
    if(window.XMLHttpRequest){
        xmlObj = new XMLHttpRequest();
    } else if(window.ActiveXObject){
        xmlObj = new ActiveXObject("Microsoft.XMLHTTP");
    } else {
        return;
    }
    
    xmlObj.onreadystatechange = function(){
        if(xmlObj.readyState == 4){

            var o_obj = document.getElementById("right");
            o_obj.innerHTML = xmlObj.responseText;
            
            var o_scripts = o_obj.getElementsByTagName("script"); 
            for(var n_index=0; n_index < o_scripts.length; n_index++)
            {
                eval( o_scripts[n_index].text);
            }
            
            
           // o_obj.className = "loading_off";
           //swapHeadShotImage();
           //if ( vs_command != null ) eval( vs_command );
            
        }
    }
    
    xmlObj.open('GET', vs_url, true);
    xmlObj.send('');

    focus();

}