function toggleLayer(whichLayer)
{
	if (document.getElementById)
	{
		// this is the way the standards work
		var style2 = document.getElementById(whichLayer).style;
		style2.display = style2.display? "":"block";
	}
	else if (document.all)
	{
		// this is the way old msie versions work
		var style2 = document.all[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
	else if (document.layers)
	{
		// this is the way nn4 works
		var style2 = document.layers[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
}

function confirmDelete()
{
    var agree=confirm("Are you sure you wish to delete this entry?");
    if (agree)
        return true;
    else
        return false;
}

// AJAX
var xmlHttp
function showHttp(qrystr,div,page)
{
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
}
var url=page
url=url+"?"+(qrystr)
//alert(url)
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=function(){
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){
	var thisdiv=document.getElementById(div)
    thisdiv.innerHTML=xmlHttp.responseText;
   }
};
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}

function GetXmlHttpObject()
{
  var xmlHttp=null;
  try
    {
    // Firefox, Opera 8.0+, Safari
    xmlHttp=new XMLHttpRequest();
         if (xmlHttp.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //xmlHttp.overrideMimeType('text/xml');
           // xmlHttp.overrideMimeType('text/html');
         }
    }
  catch (e)
    {
    // Internet Explorer
    try
      {
      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
      }
    catch (e)
      {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    }
  return xmlHttp;
}