--- zogiLib/js/Attic/js_lib.js	2004/06/03 18:05:57	1.4
+++ zogiLib/js/Attic/js_lib.js	2004/06/25 16:59:45	1.5
@@ -492,6 +492,32 @@ function unregisterMouseDown(elem, handl
     return true;
 }
 
+function registerMouseUp(elem, handler) {
+    // register a mouse up event handler on the indicated element
+    if (elem.addEventListener) {
+	elem.addEventListener("mouseup", handler, false);
+    } else {
+	if (elem.captureEvents) {
+	    elem.captureEvents(Event.MOUSEUP);
+	}
+	elem.onmouseup = handler;
+    }
+    return true;
+}
+
+function unregisterMouseUp(elem, handler) {
+    // unregister the mouse up event handler
+    if (elem.removeEventListener) {
+	elem.removeEventListener("mouseup", handler, false);
+    } else {
+	if (elem.releaseEvents) {
+	    elem.releaseEvents(Event.MOUSEUP);
+	}
+	elem.onmouseup = null;
+    }
+    return true;
+}
+
 function registerMouseMove(elem, handler) {
     // register a mouse move event handler on the indicated element
     if (elem.addEventListener) {