First commit.

subsites/projects/algo/js/themes.js

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+/* 
+  Algo: a dekstop environment look-a-like in your web browser
+  Copyright (C) 2009  Niels Serup
+  
+	This file is part of Algo.
+
+	Algo is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	Algo is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with Algo.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+  This is the themes file. The two functions in this file manage loading
+  themes and changing object properties
+*/
+function settheme(what) {
+  /* Sets the url of the themes css file. In this case it links to a PHP file
+     that has an index of names and urls. */
+  theme.href = 'themes/links.php?title=' + what + '&type=css' + '&r=' + Math.random()
+  
+  var http = new httpobj() // Creates a new httpobj object
+  http.url = 'themes/links.php' // Sets the url
+  http.method = 'get' // Sets the method
+  http.param['title'] = what // Sets the title
+  http.param['type'] = 'js' // Sets the type
+  http.param['r'] = Math.random() // Fix for i.e. IE (maybe other browsers too)
+  http.func = "themevars(text)" // Will pass received text to that function
+  http.send() // Sends it
+}
+
+function themevars(vars) {
+  // This function updates everything possible updating.
+  eval(vars) // Execute the string
+  
+  for (var i = 0; i < navi.length; i++) {
+    navi[i].update()
+  }
+  
+  // Reshow everything
+  scr.rethink()
+  scr.update()
+  
+  for (var i = 0; i < scr.len; i++) {
+    wnds[i].update()
+    wnds[i].update_appbox()
+  }
+  
+  // Some browsers are a bit slow, so waiting half a second or so is smart.
+  setTimeout("wrapper.style.display = 'block'", 500)
+  setTimeout("navi[posis['appboxes']].check_abs_height(false)", 1000)
+  
+  if (!theme_set) {
+    theme_set = true
+    // Open a small welcome window
+    setTimeout("scr.setwindow('Welcome', true, -1, -1, 300, 200)", 1000)
+  }
+}