From: Anders S. Mortensen <sondberg@indexdata.dk>
Date: Fri, 29 Dec 2006 10:22:09 +0000 (+0000)
Subject: Moving javascript into a separate container.
X-Git-Tag: before.append.child~65
X-Git-Url: http://sru.miketaylor.org.uk/?a=commitdiff_plain;h=d3daf2613e7577626bc84c54b4b70f74aff7f8e7;p=pazpar2-moved-to-github.git

Moving javascript into a separate container.
---

diff --git a/www/test1/index.html b/www/test1/index.html
index f273f66..e1a90a4 100644
--- a/www/test1/index.html
+++ b/www/test1/index.html
@@ -5,390 +5,7 @@
 
 </style>
 
-<script>
-var xmlHttp
-var xinitSession;
-var xloadTargets;
-var xsearch;
-var xshow;
-var xstat;
-var xtermlist;
-var session = false;
-var targetsloaded = false;
-var shown;
-var searchtimer;
-var showtimer;
-var termtimer;
-var stattimer;
-var startrec;
-var session_cells = Array('query');
-var old_session = session_read();
-
-function GetXmlHttpObject()
-{ 
-    var objXMLHttp=null
-    if (window.XMLHttpRequest)
-      {
-      objXMLHttp=new XMLHttpRequest()
-      }
-    else if (window.ActiveXObject)
-      {
-      objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
-      }
-    return objXMLHttp
-} 
-
-function session_started()
-{
-    if (xinitSession.readyState != 4)
-	return;
-    var xml = xinitSession.responseXML;
-    var sesid = xml.getElementsByTagName("session")[0].childNodes[0].nodeValue;
-    document.getElementById("status").innerHTML = "Live";
-    session = sesid;
-}
-
-function start_session()
-{
-    xinitSession = GetXmlHttpObject();
-    var url="search.pz2?";
-    url += "command=init";
-    xinitSession.onreadystatechange=session_started;
-    xinitSession.open("GET", url);
-    xinitSession.send(null);
-}
-
-function targets_loaded()
-{
-    if (xloadTargets.readyState != 4)
-	return;
-    var xml = xloadTargets.responseXML;
-    var error = xml.getElementsByTagName("error");
-    if (error[0])
-    {
-	var msg = error[0].childNodes[0].nodeValue;
-	alert(msg);
-	return;
-    }
-    document.getElementById("targetstatus").innerHTML = "Targets loaded";
-}
-
-function load_targets()
-{
-    var fn = document.getElementById("targetfilename").value;
-    clearTimeout(termtimer);
-    clearTimeout(searchtimer);
-    clearTimeout(stattimer);
-    clearTimeout(showtimer);
-    document.getElementById("stat").innerHTML = "";
-    if (!fn)
-    {
-	alert("Please enter a target definition file name");
-	return;
-    }
-    var url="search.pz2?" +
-    	"command=load" +
-	"&session=" + session +
-	"&name=" + fn;
-    document.getElementById("targetstatus").innerHTML = "Loading targets...";
-    xloadTargets = GetXmlHttpObject();
-    xloadTargets.onreadystatechange=targets_loaded;
-    xloadTargets.open("GET", url);
-    xloadTargets.send(null);
-}
-
-function show_records()
-{
-    if (xshow.readyState != 4)
-	return;
-    var i;
-    var xml = xshow.responseXML;
-    var body = document.getElementById("body");
-    var hits = xml.getElementsByTagName("hit");
-    if (!hits[0]) // We should never get here with blocking operations
-    {
-	body.innerHTML = "No records yet";
-	searchtimer = setTimeout(check_search, 250);
-    }
-    else
-    {
-
-	var total = Number(xml.getElementsByTagName('total')[0].childNodes[0].nodeValue);
-	var merged = Number(xml.getElementsByTagName('merged')[0].childNodes[0].nodeValue);
-	var start = Number(xml.getElementsByTagName('start')[0].childNodes[0].nodeValue);
-	var num = Number(xml.getElementsByTagName('num')[0].childNodes[0].nodeValue);
-	body.innerHTML = '<b>Records : ';
-	body.innerHTML += (start + 1) + ' to ' + (start + num) +
-		' of ' + merged + ' (total hits: ' + total + ')</b>';
-
-	if (start + num < merged)
-	    body.innerHTML += ' <a href="" ' +
-		'onclick="startrec=' + (start + 20) +
-		';check_search(); return false;">Next</a>';
-
-	if (start > 0)
-	    body.innerHTML += ' <a href="" ' +
-		'onclick="startrec=' + (start - 20) +
-		';check_search(); return false;">Previous</a>';
-
-	body.innerHTML += '<br/>';
-	for (i = 0; i < hits.length; i++)
-	{
-	    body.innerHTML += '<p>';
-	    body.innerHTML += (i + start + 1) + ': ';
-	    var mk = hits[i].getElementsByTagName("title");
-	    if (mk[0])
-		body.innerHTML += mk[0].childNodes[0].nodeValue;
-	    body.innerHTML += '</p>';
-	}
-	shown++;
-	if (shown < 5)
-	    searchtimer = setTimeout(check_search, 1000);
-	else
-	    searchtimer = setTimeout(check_search, 2000);
-    }
-    if (!termtimer)
-	termtimer = setTimeout(check_termlist, 1000);
-}
-
-function check_search()
-{
-    clearTimeout(searchtimer);
-    var url = "search.pz2?" +
-        "command=show" +
-	"&start=" + startrec +
-	"&num=15" +
-	"&session=" + session +
-	"&block=1";
-    xshow = GetXmlHttpObject();
-    xshow.onreadystatechange=show_records;
-    xshow.open("GET", url);
-    xshow.send(null);
-}
-
-
-function refine_query (obj) {
-    var query_cell = document.getElementById('query');
-    var subject = obj.innerHTML;
-    
-    subject = subject.replace(/[\(\)]/g, '');
-    query_cell.value += ' and su=(' + subject + ')';
-    start_search();
-}
-
-function show_termlist()
-{
-    if (xtermlist.readyState != 4)
-	return;
-
-    var i;
-    var xml = xtermlist.responseXML;
-    var body = document.getElementById("termlist");
-    var hits = xml.getElementsByTagName("term");
-    if (!hits[0])
-    {
-	termtimer = setTimeout(check_termlist, 1000);
-        
-    }
-    else
-    {
-	body.innerHTML = "<b>Limit results:</b><br>";
-	for (i = 0; i < hits.length; i++)
-	{
-	    var namen = hits[i].getElementsByTagName("name");
-	    if (namen[0])
-		body.innerHTML += '<a href="#" onclick="refine_query(this)">' +
-                                  namen[0].childNodes[0].nodeValue +
-                                  '</a>';
-	    /*
-	    body.innerHTML += ' (';
-	    var freqn = hits[i].getElementsByTagName("frequency");
-	    if (freqn[0])
-		body.innerHTML += freqn[0].childNodes[0].nodeValue;
-	    body.innerHTML += ')<br>';
-	    */
-	    body.innerHTML += '<br>';
-	}
-	termtimer = setTimeout(check_termlist, 2000);
-    }
-}
-
-
-function check_termlist()
-{
-    var url = "search.pz2?" +
-        "command=termlist" +
-	"&session=" + session;
-    xtermlist = GetXmlHttpObject();
-    xtermlist.onreadystatechange=show_termlist;
-    xtermlist.open("GET", url);
-    xtermlist.send(null);
-}
-
-function show_stat()
-{
-    if (xstat.readyState != 4)
-	return;
-    var i;
-    var xml = xstat.responseXML;
-    var body = document.getElementById("stat");
-    var nodes = xml.childNodes[0].childNodes;
-    if (!nodes[0])
-    {
-	stattimer  = setTimeout(check_stat, 500);
-    }
-    else
-    {
-	body.innerHTML = "(";
-	for (i = 0; i < nodes.length; i++)
-	{
-	    if (nodes[i].nodeType != 1)
-		continue;
-	    var value = nodes[i].childNodes[0].nodeValue;
-	    if (value == 0)
-		continue;
-	    var name = nodes[i].nodeName;
-	    body.innerHTML += ' ' + name + '=' + value;
-	}
-	body.innerHTML += ')';
-	stattimer = setTimeout(check_stat, 2000);
-    }
-}
-
-function check_stat()
-{
-    var url = "search.pz2?" +
-        "command=stat" +
-	"&session=" + session;
-    xstat = GetXmlHttpObject();
-    xstat.onreadystatechange=show_stat;
-    xstat.open("GET", url);
-    xstat.send(null);
-}
-
-function search_started()
-{
-    if (xsearch.readyState != 4)
-	return;
-    var xml = xsearch.responseXML;
-    var error = xml.getElementsByTagName("error");
-    if (error[0])
-    {
-	var msg = error[0].childNodes[0].nodeValue;
-	alert(msg);
-	return;
-    }
-    check_search();
-    stattimer = setTimeout(check_stat, 1000);
-}
-
-function start_search()
-{
-    clearTimeout(termtimer);
-    termtimer = 0;
-    clearTimeout(searchtimer);
-    searchtimer = 0;
-    clearTimeout(stattimer);
-    stattimer = 0;
-    clearTimeout(showtimer);
-    showtimer = 0;
-    if (!targets_loaded)
-    {
-	alert("Please load targets first");
-	return;
-    }
-    var query = escape(document.getElementById('query').value);
-    var url = "search.pz2?" +
-        "command=search" +
-	"&session=" + session +
-	"&query=" + query;
-    xsearch = GetXmlHttpObject();
-    xsearch.onreadystatechange=search_started;
-    xsearch.open("GET", url);
-    xsearch.send(null);
-    document.getElementById("termlist").innerHTML = '';
-    document.getElementById("body").innerHTML = '';
-    update_history();
-    shown = 0;
-    startrec = 0;
-}
-
-
-function session_encode ()
-{
-    var i;
-    var session = '';
-
-    for (i = 0; i < session_cells.length; i++)
-    {
-        var name = session_cells[i];
-        var value = escape(document.getElementById(name).value);
-        session += '&' + name + '=' + value;
-    }
-
-    return session;
-}
-
-
-function session_restore (session)
-{
-    var fields = session.split(/&/);
-    var i;
-
-    for (i = 1; i < fields.length; i++)
-    {
-        var pair = fields[i].split(/=/);
-        var key = pair.shift();
-        var value = pair.join('=');
-        var cell = document.getElementById(key);
-
-        cell.value = value;
-    }
-    
-}
-
-
-function session_read ()
-{
-    var ses = window.location.hash.replace(/^#/, '');
-    return ses;
-}
-
-
-function session_store (new_value)
-{
-    window.location.hash = '#' + new_value;
-}
-
-
-function update_history ()
-{
-    var session = session_encode();
-    session_store(session);
-    old_session = session;
-}
-
-
-function session_check ()
-{
-    var session = session_read();
-
-    clearInterval(url_surveillence);
-
-    if ( session != unescape(old_session) )
-    {
-        session_restore(session);
-        start_search();
-        
-    }
-    
-    url_surveillence = setInterval(session_check, 200);
-}
-        
-
-var url_surveillence = setInterval(session_check, 200);
-
-</script>
+<script type="text/javascript" src="search.js"></script>
 </head>
 
 <body onload="start_session();">
diff --git a/www/test1/index2.html b/www/test1/index2.html
deleted file mode 100644
index 1da7967..0000000
--- a/www/test1/index2.html
+++ /dev/null
@@ -1,388 +0,0 @@
-<html>
-
-<!-- $Id: index2.html,v 1.1 2006-12-14 14:57:27 sondberg Exp $
-
-     Anders's experimentation with coping with the back button/bookmarking
-     issues in Ajax applications
--->
-
-<head>
-<style type="text/css">
-
-</style>
-
-<script>
-var xmlHttp
-var xinitSession;
-var xloadTargets;
-var xsearch;
-var xshow;
-var xstat;
-var xtermlist;
-var session = false;
-var targetsloaded = false;
-var shown;
-var searchtimer;
-var showtimer;
-var termtimer;
-var stattimer;
-var startrec;
-var browser_session = new Array();
-
-
-function session_register (obj) {
-    browser_session.push(obj);
-}
-
-
-function session_update () {
-    var serialize = '';
-    
-    for (i = 0; i < browser_session.length; i++) {
-        var cell = browser_session[i];
-        serialize += cell.id + '=' + cell.value + '&';
-    }
-
-    alert(serialize);
-
-    window.session_iframe.location = window.location + '#' + serialize;
-}
-
-
-function GetXmlHttpObject()
-{ 
-    var objXMLHttp=null
-    if (window.XMLHttpRequest)
-      {
-      objXMLHttp=new XMLHttpRequest()
-      }
-    else if (window.ActiveXObject)
-      {
-      objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
-      }
-    return objXMLHttp
-} 
-
-function session_started()
-{
-    if (xinitSession.readyState != 4)
-	return;
-    var xml = xinitSession.responseXML;
-    var sesid = xml.getElementsByTagName("session")[0].childNodes[0].nodeValue;
-    document.getElementById("status").innerHTML = "Live";
-    session = sesid;
-}
-
-function start_session()
-{
-    xinitSession = GetXmlHttpObject();
-    var url="search.pz2?";
-    url += "command=init";
-    xinitSession.onreadystatechange=session_started;
-    xinitSession.open("GET", url);
-    xinitSession.send(null);
-    
-    session_register(document.getElementById('query'));
-    window.session_iframe = document.getElementById('session_iframe');
-}
-
-function targets_loaded()
-{
-    if (xloadTargets.readyState != 4)
-	return;
-    var xml = xloadTargets.responseXML;
-    var error = xml.getElementsByTagName("error");
-    if (error[0])
-    {
-	var msg = error[0].childNodes[0].nodeValue;
-	alert(msg);
-	return;
-    }
-    document.getElementById("targetstatus").innerHTML = "Targets loaded";
-}
-
-function load_targets()
-{
-    var fn = document.getElementById("targetfilename").value;
-    clearTimeout(termtimer);
-    clearTimeout(searchtimer);
-    clearTimeout(stattimer);
-    clearTimeout(showtimer);
-    document.getElementById("stat").innerHTML = "";
-    if (!fn)
-    {
-	alert("Please enter a target definition file name");
-	return;
-    }
-    var url="search.pz2?" +
-    	"command=load" +
-	"&session=" + session +
-	"&name=" + fn;
-    document.getElementById("targetstatus").innerHTML = "Loading targets...";
-    xloadTargets = GetXmlHttpObject();
-    xloadTargets.onreadystatechange=targets_loaded;
-    xloadTargets.open("GET", url);
-    xloadTargets.send(null);
-}
-
-function show_records()
-{
-    if (xshow.readyState != 4)
-	return;
-    var i;
-    var xml = xshow.responseXML;
-    var body = document.getElementById("body");
-    var hits = xml.getElementsByTagName("hit");
-    if (!hits[0])
-    {
-	body.innerHTML = "No records yet";
-	searchtimer = setTimeout(check_search, 250);
-    }
-    else
-    {
-
-	var total = Number(xml.getElementsByTagName('total')[0].childNodes[0].nodeValue);
-	var merged = Number(xml.getElementsByTagName('merged')[0].childNodes[0].nodeValue);
-	var start = Number(xml.getElementsByTagName('start')[0].childNodes[0].nodeValue);
-	var num = Number(xml.getElementsByTagName('num')[0].childNodes[0].nodeValue);
-	body.innerHTML = '<b>Records : ';
-	body.innerHTML += (start + 1) + ' to ' + (start + num) +
-		' of ' + merged + ' (total hits: ' + total + ')</b>';
-
-	if (start + num < merged)
-	    body.innerHTML += ' <a href="" ' +
-		'onclick="startrec=' + (start + 20) +
-		';check_search(); return false;">Next</a>';
-
-	if (start > 0)
-	    body.innerHTML += ' <a href="" ' +
-		'onclick="startrec=' + (start - 20) +
-		';check_search(); return false;">Previous</a>';
-
-	body.innerHTML += '<br/>';
-	for (i = 0; i < hits.length; i++)
-	{
-	    body.innerHTML += '<p>';
-	    body.innerHTML += (i + start + 1) + ': ';
-	    var mk = hits[i].getElementsByTagName("title");
-	    if (mk[0])
-		body.innerHTML += mk[0].childNodes[0].nodeValue;
-	    body.innerHTML += '</p>';
-	}
-	shown++;
-	if (shown < 5)
-	    searchtimer = setTimeout(check_search, 400);
-	else if (shown < 10)
-	    searchtimer = setTimeout(check_search, 1000);
-	else
-	    searchtimer = setTimeout(check_search, 4000);
-    }
-}
-
-function check_search()
-{
-    clearTimeout(searchtimer);
-    var url = "search.pz2?" +
-        "command=show" +
-	"&start=" + startrec +
-	"&session=" + session;
-    xshow = GetXmlHttpObject();
-    xshow.onreadystatechange=show_records;
-    xshow.open("GET", url);
-    xshow.send(null);
-}
-
-
-function refine_query (obj) {
-    var query_cell = document.getElementById('query');
-
-    query_cell.value += ' and su=' + obj.innerHTML;
-    start_search();
-}
-
-function show_termlist()
-{
-    if (xtermlist.readyState != 4)
-	return;
-    var i;
-    var xml = xtermlist.responseXML;
-    var body = document.getElementById("termlist");
-    var hits = xml.getElementsByTagName("term");
-    if (!hits[0])
-    {
-	termtimer = (check_termlist, 1000);
-    }
-    else
-    {
-	body.innerHTML = "<b>Limit results:</b><br>";
-	for (i = 0; i < hits.length; i++)
-	{
-	    var namen = hits[i].getElementsByTagName("name");
-	    if (namen[0])
-		body.innerHTML += '<a href="#" onclick="refine_query(this)">' +
-                                  namen[0].childNodes[0].nodeValue +
-                                  '</a>';
-	    /*
-	    body.innerHTML += ' (';
-	    var freqn = hits[i].getElementsByTagName("frequency");
-	    if (freqn[0])
-		body.innerHTML += freqn[0].childNodes[0].nodeValue;
-	    body.innerHTML += ')<br>';
-	    */
-	    body.innerHTML += '<br>';
-	}
-	termtimer = setTimeout(check_termlist, 2000);
-    }
-}
-
-
-function check_termlist()
-{
-    var url = "search.pz2?" +
-        "command=termlist" +
-	"&session=" + session;
-    xtermlist = GetXmlHttpObject();
-    xtermlist.onreadystatechange=show_termlist;
-    xtermlist.open("GET", url);
-    xtermlist.send(null);
-}
-
-function show_stat()
-{
-    if (xstat.readyState != 4)
-	return;
-    var i;
-    var xml = xstat.responseXML;
-    var body = document.getElementById("stat");
-    var nodes = xml.childNodes[0].childNodes;
-    if (!nodes[0])
-    {
-	stattimer  = setTimeout(check_stat, 500);
-    }
-    else
-    {
-	body.innerHTML = "(";
-	for (i = 0; i < nodes.length; i++)
-	{
-	    if (nodes[i].nodeType != 1)
-		continue;
-	    var value = nodes[i].childNodes[0].nodeValue;
-	    if (value == 0)
-		continue;
-	    var name = nodes[i].nodeName;
-	    body.innerHTML += ' ' + name + '=' + value;
-	}
-	body.innerHTML += ')';
-	stattimer = setTimeout(check_stat, 2000);
-    }
-}
-
-function check_stat()
-{
-    var url = "search.pz2?" +
-        "command=stat" +
-	"&session=" + session;
-    xstat = GetXmlHttpObject();
-    xstat.onreadystatechange=show_stat;
-    xstat.open("GET", url);
-    xstat.send(null);
-}
-
-function search_started()
-{
-    if (xsearch.readyState != 4)
-	return;
-    var xml = xsearch.responseXML;
-    var error = xml.getElementsByTagName("error");
-    if (error[0])
-    {
-	var msg = error[0].childNodes[0].nodeValue;
-	alert(msg);
-	return;
-    }
-    searchtimer = setTimeout(check_search, 250);
-    termtimer = setTimeout(check_termlist, 1000);
-    stattimer = setTimeout(check_stat, 1000);
-}
-
-function start_search()
-{
-    session_update();
-    clearTimeout(termtimer);
-    clearTimeout(searchtimer);
-    clearTimeout(stattimer);
-    clearTimeout(showtimer);
-    if (!targets_loaded)
-    {
-	alert("Please load targets first");
-	return;
-    }
-    var query = escape(document.getElementById('query').value);
-    var url = "search.pz2?" +
-        "command=search" +
-	"&session=" + session +
-	"&query=" + query;
-    xsearch = GetXmlHttpObject();
-    xsearch.onreadystatechange=search_started;
-    xsearch.open("GET", url);
-    xsearch.send(null);
-    document.getElementById("termlist").innerHTML = '';
-    document.getElementById("body").innerHTML = '';
-    shown = 0;
-    startrec = 0;
-}
-
-
-
-
-</script>
-</head>
-
-<body onload="start_session();">
-
-<table width="100%" border="1" cellpadding="5">
-    <tr>
-	<td width="250" height="100" align="center">
-	    <font size="+2"><b>MasterKey mk I</b></font>
-	</td>
-
-	<td>
-	    <form onsubmit="start_search(); return false;">
-		<b>Search:</b> <input id="query" type="text" size="50"/>
-		<input type="submit" value="Go"/>
-	    </form>
-
-	<td>
-    </tr>
-
-    <tr>
-	<td valign="top" id="termlist">&nbsp;</td>
-
-	<td valign="top" id="body">
-	Funky search prototype.<br><br><br><br>
-	<td>
-    </tr>
-
-    <tr>
-	<td>
-	&nbsp;
-	    <!-- 
-	    <form onsubmit="load_targets(); return false;">
-		Target file:<br/>
-		<input type="text" id="targetfilename" size="20"/>
-		<input type="submit"  value="load" />
-	    </form>
-	    -->
-	</td>
-
-	<td>
-	    Status: <span id="status">Initializing</span> <span id="targetstatus"></span><br/><span id="stat"></span>
-	</td>
-
-    </tr>
-
-</table>
-<iframe id="session_iframe"/>
-
-</body>
-</html>
diff --git a/www/test1/search.js b/www/test1/search.js
new file mode 100644
index 0000000..28f72a3
--- /dev/null
+++ b/www/test1/search.js
@@ -0,0 +1,387 @@
+/* $Id: search.js,v 1.1 2006-12-29 10:22:09 sondberg Exp $
+ * ---------------------------------------------------
+ * Javascript container
+ */
+
+var xmlHttp
+var xinitSession;
+var xloadTargets;
+var xsearch;
+var xshow;
+var xstat;
+var xtermlist;
+var session = false;
+var targetsloaded = false;
+var shown;
+var searchtimer;
+var showtimer;
+var termtimer;
+var stattimer;
+var startrec;
+var session_cells = Array('query');
+var old_session = session_read();
+
+function GetXmlHttpObject()
+{ 
+    var objXMLHttp=null
+    if (window.XMLHttpRequest)
+      {
+      objXMLHttp=new XMLHttpRequest()
+      }
+    else if (window.ActiveXObject)
+      {
+      objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
+      }
+    return objXMLHttp
+} 
+
+function session_started()
+{
+    if (xinitSession.readyState != 4)
+	return;
+    var xml = xinitSession.responseXML;
+    var sesid = xml.getElementsByTagName("session")[0].childNodes[0].nodeValue;
+    document.getElementById("status").innerHTML = "Live";
+    session = sesid;
+}
+
+function start_session()
+{
+    xinitSession = GetXmlHttpObject();
+    var url="search.pz2?";
+    url += "command=init";
+    xinitSession.onreadystatechange=session_started;
+    xinitSession.open("GET", url);
+    xinitSession.send(null);
+}
+
+function targets_loaded()
+{
+    if (xloadTargets.readyState != 4)
+	return;
+    var xml = xloadTargets.responseXML;
+    var error = xml.getElementsByTagName("error");
+    if (error[0])
+    {
+	var msg = error[0].childNodes[0].nodeValue;
+	alert(msg);
+	return;
+    }
+    document.getElementById("targetstatus").innerHTML = "Targets loaded";
+}
+
+function load_targets()
+{
+    var fn = document.getElementById("targetfilename").value;
+    clearTimeout(termtimer);
+    clearTimeout(searchtimer);
+    clearTimeout(stattimer);
+    clearTimeout(showtimer);
+    document.getElementById("stat").innerHTML = "";
+    if (!fn)
+    {
+	alert("Please enter a target definition file name");
+	return;
+    }
+    var url="search.pz2?" +
+    	"command=load" +
+	"&session=" + session +
+	"&name=" + fn;
+    document.getElementById("targetstatus").innerHTML = "Loading targets...";
+    xloadTargets = GetXmlHttpObject();
+    xloadTargets.onreadystatechange=targets_loaded;
+    xloadTargets.open("GET", url);
+    xloadTargets.send(null);
+}
+
+function show_records()
+{
+    if (xshow.readyState != 4)
+	return;
+    var i;
+    var xml = xshow.responseXML;
+    var body = document.getElementById("body");
+    var hits = xml.getElementsByTagName("hit");
+    if (!hits[0]) // We should never get here with blocking operations
+    {
+	body.innerHTML = "No records yet";
+	searchtimer = setTimeout(check_search, 250);
+    }
+    else
+    {
+
+	var total = Number(xml.getElementsByTagName('total')[0].childNodes[0].nodeValue);
+	var merged = Number(xml.getElementsByTagName('merged')[0].childNodes[0].nodeValue);
+	var start = Number(xml.getElementsByTagName('start')[0].childNodes[0].nodeValue);
+	var num = Number(xml.getElementsByTagName('num')[0].childNodes[0].nodeValue);
+	body.innerHTML = '<b>Records : ';
+	body.innerHTML += (start + 1) + ' to ' + (start + num) +
+		' of ' + merged + ' (total hits: ' + total + ')</b>';
+
+	if (start + num < merged)
+	    body.innerHTML += ' <a href="" ' +
+		'onclick="startrec=' + (start + 20) +
+		';check_search(); return false;">Next</a>';
+
+	if (start > 0)
+	    body.innerHTML += ' <a href="" ' +
+		'onclick="startrec=' + (start - 20) +
+		';check_search(); return false;">Previous</a>';
+
+	body.innerHTML += '<br/>';
+	for (i = 0; i < hits.length; i++)
+	{
+	    body.innerHTML += '<p>';
+	    body.innerHTML += (i + start + 1) + ': ';
+	    var mk = hits[i].getElementsByTagName("title");
+	    if (mk[0])
+		body.innerHTML += mk[0].childNodes[0].nodeValue;
+	    body.innerHTML += '</p>';
+	}
+	shown++;
+	if (shown < 5)
+	    searchtimer = setTimeout(check_search, 1000);
+	else
+	    searchtimer = setTimeout(check_search, 2000);
+    }
+    if (!termtimer)
+	termtimer = setTimeout(check_termlist, 1000);
+}
+
+function check_search()
+{
+    clearTimeout(searchtimer);
+    var url = "search.pz2?" +
+        "command=show" +
+	"&start=" + startrec +
+	"&num=15" +
+	"&session=" + session +
+	"&block=1";
+    xshow = GetXmlHttpObject();
+    xshow.onreadystatechange=show_records;
+    xshow.open("GET", url);
+    xshow.send(null);
+}
+
+
+function refine_query (obj) {
+    var query_cell = document.getElementById('query');
+    var subject = obj.innerHTML;
+    
+    subject = subject.replace(/[\(\)]/g, '');
+    query_cell.value += ' and su=(' + subject + ')';
+    start_search();
+}
+
+function show_termlist()
+{
+    if (xtermlist.readyState != 4)
+	return;
+
+    var i;
+    var xml = xtermlist.responseXML;
+    var body = document.getElementById("termlist");
+    var hits = xml.getElementsByTagName("term");
+    if (!hits[0])
+    {
+	termtimer = setTimeout(check_termlist, 1000);
+        
+    }
+    else
+    {
+	body.innerHTML = "<b>Limit results:</b><br>";
+	for (i = 0; i < hits.length; i++)
+	{
+	    var namen = hits[i].getElementsByTagName("name");
+	    if (namen[0])
+		body.innerHTML += '<a href="#" onclick="refine_query(this)">' +
+                                  namen[0].childNodes[0].nodeValue +
+                                  '</a>';
+	    /*
+	    body.innerHTML += ' (';
+	    var freqn = hits[i].getElementsByTagName("frequency");
+	    if (freqn[0])
+		body.innerHTML += freqn[0].childNodes[0].nodeValue;
+	    body.innerHTML += ')<br>';
+	    */
+	    body.innerHTML += '<br>';
+	}
+	termtimer = setTimeout(check_termlist, 2000);
+    }
+}
+
+
+function check_termlist()
+{
+    var url = "search.pz2?" +
+        "command=termlist" +
+	"&session=" + session;
+    xtermlist = GetXmlHttpObject();
+    xtermlist.onreadystatechange=show_termlist;
+    xtermlist.open("GET", url);
+    xtermlist.send(null);
+}
+
+function show_stat()
+{
+    if (xstat.readyState != 4)
+	return;
+    var i;
+    var xml = xstat.responseXML;
+    var body = document.getElementById("stat");
+    var nodes = xml.childNodes[0].childNodes;
+    if (!nodes[0])
+    {
+	stattimer  = setTimeout(check_stat, 500);
+    }
+    else
+    {
+	body.innerHTML = "(";
+	for (i = 0; i < nodes.length; i++)
+	{
+	    if (nodes[i].nodeType != 1)
+		continue;
+	    var value = nodes[i].childNodes[0].nodeValue;
+	    if (value == 0)
+		continue;
+	    var name = nodes[i].nodeName;
+	    body.innerHTML += ' ' + name + '=' + value;
+	}
+	body.innerHTML += ')';
+	stattimer = setTimeout(check_stat, 2000);
+    }
+}
+
+function check_stat()
+{
+    var url = "search.pz2?" +
+        "command=stat" +
+	"&session=" + session;
+    xstat = GetXmlHttpObject();
+    xstat.onreadystatechange=show_stat;
+    xstat.open("GET", url);
+    xstat.send(null);
+}
+
+function search_started()
+{
+    if (xsearch.readyState != 4)
+	return;
+    var xml = xsearch.responseXML;
+    var error = xml.getElementsByTagName("error");
+    if (error[0])
+    {
+	var msg = error[0].childNodes[0].nodeValue;
+	alert(msg);
+	return;
+    }
+    check_search();
+    stattimer = setTimeout(check_stat, 1000);
+}
+
+function start_search()
+{
+    clearTimeout(termtimer);
+    termtimer = 0;
+    clearTimeout(searchtimer);
+    searchtimer = 0;
+    clearTimeout(stattimer);
+    stattimer = 0;
+    clearTimeout(showtimer);
+    showtimer = 0;
+    if (!targets_loaded)
+    {
+	alert("Please load targets first");
+	return;
+    }
+    var query = escape(document.getElementById('query').value);
+    var url = "search.pz2?" +
+        "command=search" +
+	"&session=" + session +
+	"&query=" + query;
+    xsearch = GetXmlHttpObject();
+    xsearch.onreadystatechange=search_started;
+    xsearch.open("GET", url);
+    xsearch.send(null);
+    document.getElementById("termlist").innerHTML = '';
+    document.getElementById("body").innerHTML = '';
+    update_history();
+    shown = 0;
+    startrec = 0;
+}
+
+
+function session_encode ()
+{
+    var i;
+    var session = '';
+
+    for (i = 0; i < session_cells.length; i++)
+    {
+        var name = session_cells[i];
+        var value = escape(document.getElementById(name).value);
+        session += '&' + name + '=' + value;
+    }
+
+    return session;
+}
+
+
+function session_restore (session)
+{
+    var fields = session.split(/&/);
+    var i;
+
+    for (i = 1; i < fields.length; i++)
+    {
+        var pair = fields[i].split(/=/);
+        var key = pair.shift();
+        var value = pair.join('=');
+        var cell = document.getElementById(key);
+
+        cell.value = value;
+    }
+    
+}
+
+
+function session_read ()
+{
+    var ses = window.location.hash.replace(/^#/, '');
+    return ses;
+}
+
+
+function session_store (new_value)
+{
+    window.location.hash = '#' + new_value;
+}
+
+
+function update_history ()
+{
+    var session = session_encode();
+    session_store(session);
+    old_session = session;
+}
+
+
+function session_check ()
+{
+    var session = session_read();
+
+    clearInterval(url_surveillence);
+
+    if ( session != unescape(old_session) )
+    {
+        session_restore(session);
+        start_search();
+        
+    }
+    
+    url_surveillence = setInterval(session_check, 200);
+}
+        
+
+var url_surveillence = setInterval(session_check, 200);
+