// JavaScript Document
var medFetch = false;
try {
  medFetch = new XMLHttpRequest();
} catch (trymicrosoft) {
  try {
    medFetch = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (othermicrosoft) {
    try {
      medFetch = new ActiveXObject("Microsoft.XMLHTTP");
    } catch (failed) {
      medFetch = false;
	  window.location = 'logout.php';
    }
  }
}

function buildDisplay(){
	//build search box
	buildKeyword();
	updateMediaDisplay();
}

function buildKeyword(keyword){
	ser = "<table><tr><td><h3>Search: <input type='text' size='20' name='mKeyword' id='mKeyword'";
	if (keyword){ ser = ser + " value='" + keyword + "'"; } 
	ser = ser + " /> <input type='button' value='SEARCH' onclick='updateMediaDisplay(document.getElementById(\"mKeyword\").value);' /></h3></td>";
	if (keyword){ ser = ser + "<td width='35%' align='right'><p><a href='javascript:buildDisplay();'>[CLEAR SEARCH]</a></p></td>"; }
	ser = ser + "</tr></table>";
	document.getElementById('search').innerHTML = ser;
}

function updateMediaDisplay(keyword){
	data = "dir="+dir;
	if (keyword){
		data = data + "&keyword="+keyword;
		buildKeyword(keyword);
	}
	medFetch.open('POST', 'z_includes/med_files.php', true);
	medFetch.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
	medFetch.send(data);
	medFetch.onreadystatechange = function(){ 
		if(medFetch.readyState  == 4){
			if(medFetch.status  == 200){
				if (medFetch.responseText != 'failed'){
					document.getElementById('mediaList').innerHTML = medFetch.responseText;
				}else{
					alert('Issue retreaving ');
				}
			}
		}
	}
}