function ajax ()
       {
              var xmlHttp;

             try
            {
                    // Firefox, Opera 8.0+, Safari
                   xmlHttp=new XMLHttpRequest();
             }
            catch (e)
            {
                // Internet Explorer
               try
              {     
                       xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
               }
               catch (e)
                {
                      try
                      {
                          xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
                       }
                        catch (e)
                      {                       
                             alert("Your browser does not support AJAX!");
                             return false;
                      }
                }
              }
              return xmlHttp;

    }
	
	 var debug = false;
     function action_on_button( x, base )
     {
			
              var xmlHttp;
               xmlHttp = ajax();	   

               xmlHttp.onreadystatechange=function()
              {
				    

                     if(xmlHttp.readyState==4)
                    {
						if( debug  )
						{
							alert( xmlHttp.responseText );
						}
						
						if ( xmlHttp.responseText == 'Enabled' )
						{
							document.getElementById(x).style.display = 'block';
						}
                   	}
					
             }

           xmlHttp.open("GET", base + "ajax_core.php",true);
           xmlHttp.send(null);
}