+// static functions for event handling
+var rcube_event = {
+
+ /**
+ * returns the event key code
+ */
+ get_keycode: function(e)
+ {
+ e = e || window.event;
+ return e && e.keyCode ? e.keyCode : (e && e.which ? e.which : 0);
+ },
+
+/**
+ * returns modifier key (constants defined at top of file)
+ */
+get_modifier: function(e)
+{
+ var opcode = 0;
+ e = e || window.event;
+
+ if (bw.mac && e)
+ {
+ opcode += (e.metaKey && CONTROL_KEY) + (e.shiftKey && SHIFT_KEY);
+ return opcode;
+ }
+ if (e)
+ {
+ opcode += (e.ctrlKey && CONTROL_KEY) + (e.shiftKey && SHIFT_KEY);
+ return opcode;
+ }
+},
+
+/**
+ * Return absolute mouse position of an event
+ */
+get_mouse_pos: function(e)
+{
+ if (!e) e = window.event;
+ var mX = (e.pageX) ? e.pageX : e.clientX;
+ var mY = (e.pageY) ? e.pageY : e.clientY;
+
+ if (document.body && document.all)
+ {
+ mX += document.body.scrollLeft;
+ mY += document.body.scrollTop;
+ }
+
+ return { x:mX, y:mY };
+},
+
+/**
+ * Add an object method as event listener to a certain element
+ */
+add_listener: function(p)
+{
+ if (!p.object || !p.method) // not enough arguments
+ return;
+ if (!p.element)
+ p.element = document;
+
+ if (!p.object._rc_events)
+ p.object._rc_events = [];
+
+ var key = p.event + '*' + p.method;
+ if (!p.object._rc_events[key])
+ p.object._rc_events[key] = function(e){ return p.object[p.method](e); };
+
+ if (p.element.addEventListener)
+ p.element.addEventListener(p.event, p.object._rc_events[key], false);
+ else if (p.element.attachEvent)
+ p.element.attachEvent('on'+p.event, p.object._rc_events[key]);
+ else
+ p.element['on'+p.event] = p.object._rc_events[key];
+},
+
+/**
+ * Remove event listener
+ */
+remove_listener: function(p)
+{
+ if (!p.element)
+ p.element = document;
+
+ var key = p.event + '*' + p.method;
+ if (p.object && p.object._rc_events && p.object._rc_events[key]) {
+ if (p.element.removeEventListener)
+ p.element.removeEventListener(p.event, p.object._rc_events[key], false);
+ else if (p.element.detachEvent)
+ p.element.detachEvent('on'+p.event, p.object._rc_events[key]);
+ else
+ p.element['on'+p.event] = null;
+ }
+},
+
+/**
+ * Prevent event propagation and bubbeling
+ */
+cancel: function(evt)
+{
+ var e = evt ? evt : window.event;
+ if (e.preventDefault)
+ e.preventDefault();
+ if (e.stopPropagation)
+ e.stopPropagation();
+
+ e.cancelBubble = true;
+ e.returnValue = false;
+ return false;
+}
+
+};