var xmlHttp
var _layer

function showLayerContent(page, layer, str) //str    varijabla koja je argument funkcije
{ 
try{
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url=page;
_layer= layer;
url=url+"?"+str;
//url=url+"&sid="+Math.random();

xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
//xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=iso-8859-1');
xmlHttp.send(null);
}
catch(e){
	return 0;
}
}

function stateChanged() 
{ 

	if (xmlHttp.readyState==4)
	{ 
		resp = xmlHttp.responseText;
			document.getElementById(_layer).innerHTML=resp;	
	}

}


function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}