function showDisplay(displayType,field,criteria)
{
 //       document.getElementById('primaryContent').innerHTML = "<img src=images/spinner.gif align=center><img src=images/acedance.gif align=center>";
    document.getElementById('primaryContent').innerHTML = "<table align='center' width='100%' height='100%'><tr valign='center'><td><center><img src='images/acedance.gif' /></center></td></tr></table>";

/*
		var url = 'ajax.php';
		var pars = 'displayType='+displayType+'&field=' + field + '&criteria='+ criteria;
		var myAjax = new Ajax.Request( url, { method: 'get', parameters: pars, 
		onComplete: updateDisplay });
*/
 $.ajax({
   type: "GET",
   url: "ajax.php",
   data: 'displayType='+displayType+'&field=' + field + '&criteria='+ criteria,
   success: function(msg){
         document.getElementById('primaryContent').innerHTML = msg;

   }
 });

}	
function updateDisplay(output){
    document.getElementById('primaryContent').innerHTML = output.responseText;

}