diff --git a/lib/settings-update.php b/lib/settings-update.php
new file mode 100644
index 0000000..315a473
--- /dev/null
+++ b/lib/settings-update.php
@@ -0,0 +1,65 @@
+<?php
+// Update this config file?
+if (!$demoMode && isset($_SESSION['loggedIn']) && $_SESSION['loggedIn'] && isset($_POST["theme"]) && $_POST["theme"]) {
+	$settingsContents = file_get_contents($settingsFile,false,$context);
+	// Replace our settings vars
+	$repPosStart = strpos($settingsContents,'"root"');
+	$repPosEnd = strpos($settingsContents,'"plugins"');
+
+	// Prepare all our vars
+	$ICEcoder["root"]			= strClean($_POST['root']);
+	$ICEcoder["checkUpdates"]		= isset($_POST['checkUpdates']) && $_POST['checkUpdates'] ? "true" : "false";
+	$ICEcoder["openLastFiles"]		= isset($_POST['openLastFiles']) && $_POST['openLastFiles'] ? "true" : "false";
+	$ICEcoder["findFilesExclude"]		= 'array("'.str_replace(',','","',str_replace(" ","",strClean($_POST['findFilesExclude']))).'")';
+	$ICEcoder["codeAssist"]			= isset($_POST['codeAssist']) && $_POST['codeAssist'] ? "true" : "false";
+	$ICEcoder["visibleTabs"]		= isset($_POST['visibleTabs']) && $_POST['visibleTabs'] ? "true" : "false";
+	$ICEcoder["lockedNav"]			= isset($_POST['lockedNav']) && $_POST['lockedNav'] ? "true" : "false";
+	$ICEcoder["tagWrapperCommand"]		= strClean($_POST['tagWrapperCommand']);
+	$ICEcoder["autoComplete"]		= strClean($_POST['autoComplete']);
+	if ($_POST['password']!="")		{$ICEcoder["password"] = generateHash(strClean($_POST['password']));};
+	$ICEcoder["bannedFiles"]		= 'array("'.str_replace(',','","',str_replace(" ","",strClean($_POST['bannedFiles']))).'")';
+	$ICEcoder["bannedPaths"]		= 'array("'.str_replace(',','","',str_replace(" ","",strClean($_POST['bannedPaths']))).'")';
+	$ICEcoder["allowedIPs"]			= 'array("'.str_replace(',','","',str_replace(" ","",strClean($_POST['allowedIPs']))).'")';
+	$ICEcoder["theme"]			= strClean($_POST['theme']);
+	$ICEcoder["fontSize"]			= strClean($_POST['fontSize']);
+	$ICEcoder["lineWrapping"]		= strClean($_POST['lineWrapping']);
+	$ICEcoder["indentWithTabs"]		= strClean($_POST['indentWithTabs']);
+	$ICEcoder["indentSize"]			= numClean($_POST['indentSize']);
+
+	$settingsArray = array("root","checkUpdates","openLastFiles","findFilesExclude","codeAssist","visibleTabs","lockedNav","tagWrapperCommand","autoComplete","password","bannedFiles","bannedPaths","allowedIPs","theme","fontSize","lineWrapping","indentWithTabs","indentSize");
+	$settingsNew = "";
+	for ($i=0;$i<count($settingsArray);$i++) {
+		$settingsNew .= '"'.$settingsArray[$i].'"'.PHP_EOL.'	=> ';
+		// Wrap certain values in double quotes
+		$settingWrap = $settingsArray[$i]=="root"||$settingsArray[$i]=="password"||$settingsArray[$i]=="theme"||$settingsArray[$i]=="fontSize"||$settingsArray[$i]=="tagWrapperCommand"||$settingsArray[$i]=="autoComplete" ? '"' : '';
+		$settingsNew .= $settingWrap.$ICEcoder[$settingsArray[$i]].$settingWrap.','.PHP_EOL.PHP_EOL;
+	}
+
+	// Compile our new settings
+	$settingsContents = substr($settingsContents,0,$repPosStart).$settingsNew.substr($settingsContents,($repPosEnd),strlen($settingsContents));
+
+	// Now update the config file
+	if (is_writeable($settingsFile)) {
+		$fh = fopen($settingsFile, 'w');
+		fwrite($fh, $settingsContents);
+		fclose($fh);
+	} else {
+		echo "<script>top.ICEcoder.message('Cannot update config file. Please set public write permissions on lib/".$settingsFile." and try again');</script>";
+	}
+
+	// OK, now the config file has been updated, update our current session with new arrays
+	$settingsArray = array("findFilesExclude","bannedFiles","allowedIPs");
+	for ($i=0;$i<count($settingsArray);$i++) {
+		$_SESSION[$settingsArray[$i]] = $ICEcoder[$settingsArray[$i]] = explode(",",str_replace(" ","",strClean($_POST[$settingsArray[$i]])));
+	}
+
+	// Work out the theme to use now
+	$ICEcoder["theme"]=="default" ? $themeURL = 'lib/editor.css' : $themeURL = $ICEcoder["codeMirrorDir"].'/theme/'.$ICEcoder["theme"].'.css';
+
+	// Do we need a file manager refresh?
+	$refreshFM = $_POST['changedFileSettings']=="true" ? "true" : "false";
+
+	// With all that worked out, we can now hide the settings screen and apply the new settings
+	echo "<script>top.ICEcoder.settingsScreen('hide');top.ICEcoder.useNewSettings('".$themeURL."',".$ICEcoder["codeAssist"].",".$ICEcoder["lockedNav"].",'".$ICEcoder["tagWrapperCommand"]."','".$ICEcoder["autoComplete"]."',".$ICEcoder["visibleTabs"].",'".$ICEcoder["fontSize"]."',".$ICEcoder["lineWrapping"].",".$ICEcoder["indentWithTabs"].",".$ICEcoder["indentSize"].",".$refreshFM.");</script>";
+}
+?>
\ No newline at end of file