var req;

function loadXMLDoc(url) {
  document.getElementById('people_search_result').innerHTML = '<img src="/i/ajax-loadr.gif" alt="loading..." border="0" />';
 	req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest && !(window.ActiveXObject)) {
    	try {
			req = new XMLHttpRequest();
        } catch(e) {
			req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
       	try {
        	req = new ActiveXObject("Msxml2.XMLHTTP");
      	} catch(e) {
        	try {
          		req = new ActiveXObject("Microsoft.XMLHTTP");
        	} catch(e) {
          		req = false;
        	}
		}
    }
	if(req) {
		req.onreadystatechange = processReqChange;
		req.open("GET", url, true);
		req.send("");
	}
}

function processReqChange() {
    // only if req shows "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            document.getElementById('people_search_result').innerHTML = '<br />' + req.responseText;
        } else {
			   document.getElementById('people_search_result').innerHTML = '';
           alert("There was a problem retrieving the XML data:\n" +
                req.statusText);
        }
    }
}

function PeopleSearchSendRequest(addr) {
	loadXMLDoc('http://' + addr + '/people_find.php?psearch=' + document.getElementById('psearch').value);
}

function PeopleSearchKeyPressed(evt, addr) {
	if (evt.keyCode == 13) {
		PeopleSearchSendRequest(addr);
	}
}