function prikaziSliku(folder, slika){
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;
    }
  }
}

xmlHttp.onreadystatechange=function(){
	if(xmlHttp.readyState==4){

		 document.getElementById("prostorSlike").innerHTML=xmlHttp.responseText;

	}
}

var url="galerija_ss.php"
url=url+"?opis="+folder
url=url+"&slika="+slika
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}