1 files changed, 165 insertions, 0 deletions
diff --git a/misc/drupal.js b/misc/drupal.js
new file mode 100644
index 000000000..02ea60493
--- /dev/null
+++ b/misc/drupal.js
@@ -0,0 +1,165 @@
+/**
+ * Only enable Javascript functionality if all required features are supported.
+ */
+function isJsEnabled() {
+  if (document.jsEnabled == undefined) {
+    // Note: ! casts to boolean implicitly.
+    document.jsEnabled = !(
+     !document.getElementsByTagName ||
+     !document.createElement        ||
+     !document.createTextNode       ||
+     !document.getElementById);
+  }
+  return document.jsEnabled;
+}
+
+// Global Killswitch
+if (isJsEnabled()) {
+
+}
+
+/**
+ * Make IE's XMLHTTP object accessible through XMLHttpRequest()
+ */
+if (typeof XMLHttpRequest == 'undefined') {
+ XMLHttpRequest = function () {
+   var msxmls = ['MSXML3', 'MSXML2', 'Microsoft']
+   for (var i=0; i < msxmls.length; i++) {
+     try {
+       return new ActiveXObject(msxmls[i]+'.XMLHTTP')
+     }
+     catch (e) { }
+   }
+   throw new Error("No XML component installed!")
+ }
+}
+
+/**
+ * Creates an HTTP request and sends the response to the callback function
+ */
+function HTTPGet(uri, callbackFunction, callbackParameter) {
+  var xmlHttp = new XMLHttpRequest();
+  var bAsync = true;
+  if (!callbackFunction)
+    bAsync = false;
+  xmlHttp.open('GET', uri, bAsync);
+  xmlHttp.send(null);
+
+  if (bAsync) {
+    if (callbackFunction) {
+      xmlHttp.onreadystatechange = function() {
+        if (xmlHttp.readyState == 4)
+          callbackFunction(xmlHttp.responseText, xmlHttp, callbackParameter)
+      }
+    }
+    return true;
+  }
+  else {
+    return xmlHttp.responseText;
+  }
+}
+
+/**
+ * Adds a function to the window onload event
+ */
+function addLoadEvent(func) {
+  var oldOnload = window.onload;
+  if (typeof window.onload != 'function') {
+    window.onload = func;
+  }
+  else {
+    window.onload = function() {
+      oldOnload();
+      func();
+    }
+  }
+}
+
+/**
+ * Retrieves the absolute position of an element on the screen
+ */
+function absolutePosition(el) {
+  var sLeft = 0, sTop = 0;
+  var isDiv = /^div$/i.test(el.tagName);
+  if (isDiv && el.scrollLeft) {
+    sLeft = el.scrollLeft;
+  }
+  if (isDiv && el.scrollTop) {
+    sTop = el.scrollTop;
+  }
+  var r = { x: el.offsetLeft - sLeft, y: el.offsetTop - sTop };
+  if (el.offsetParent) {
+    var tmp = absolutePosition(el.offsetParent);
+    r.x += tmp.x;
+    r.y += tmp.y;
+  }
+  return r;
+};
+
+/**
+ * Returns true if an element has a specified class name
+ */
+function hasClass(node, className) {
+  if (node.className == className) {
+    return true;
+  }
+  var reg = new RegExp('(^| )'+ className +'($| )')
+  if (reg.test(node.className)) {
+    return true;
+  }
+  return false;
+}
+
+/**
+ * Adds a class name to an element
+ */
+function addClass(node, className) {
+  if (hasClass(node, className)) {
+    return false;
+  }
+  node.className += ' '+ className;
+  return true;
+}
+
+/**
+ * Removes a class name from an element
+ */
+function removeClass(node, className) {
+  if (!hasClass(node, className)) {
+    return false;
+  }
+  node.className = eregReplace('(^| )'+ className +'($| )', '', node.className);
+  return true;
+}
+
+/**
+ * Toggles a class name on or off for an element
+ */
+function toggleClass(node, className) {
+  if (!removeClass(node, className) && !addClass(node, className)) {
+    return false;
+  }
+  return true;
+}
+
+/**
+ * Emulate PHP's ereg_replace function in javascript
+ */
+function eregReplace(search, replace, subject) {
+  return subject.replace(new RegExp(search,'g'), replace);
+}
+
+/**
+ * Removes an element from the page
+ */
+function removeNode(node) {
+  if (typeof node == 'string') {
+    node = document.getElementById(node);
+  }
+  if (node && node.parentNode) {
+    return node.parentNode.removeChild(node);
+  }
+  else {
+    return false;
+  }
+}