function createRequestObject() {
var req;
if(window.XMLHttpRequest){
req = new XMLHttpRequest();
} else if(window.ActiveXObject) {
req = new ActiveXObject("Microsoft.XMLHTTP");
} else {
alert('Tvoj browser ne podrzava AJAX');
}
return req;
}

var http = createRequestObject();

function fotok(slik,opis) {
 
 document.getElementById('fotoslikaokvir').innerHTML='<img src="'+slik+'" border="1" />';
 document.getElementById('fotoslikaopis').innerHTML=opis; 	

}