--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/textarea.js	Tue Dec 23 14:28:28 2008 +0100
@@ -0,0 +1,36 @@
+// $Id: textarea.js,v 1.22 2008/01/17 19:31:56 goba Exp $
+
+Drupal.behaviors.textarea = function(context) {
+  $('textarea.resizable:not(.textarea-processed)', context).each(function() {
+    // Avoid non-processed teasers.
+    if ($(this).is(('textarea.teaser:not(.teaser-processed)'))) {
+      return false;  
+    }
+    var textarea = $(this).addClass('textarea-processed'), staticOffset = null;
+
+    // When wrapping the text area, work around an IE margin bug.  See:
+    // http://jaspan.com/ie-inherited-margin-bug-form-elements-and-haslayout
+    $(this).wrap('<div class="resizable-textarea"><span></span></div>')
+      .parent().append($('<div class="grippie"></div>').mousedown(startDrag));
+
+    var grippie = $('div.grippie', $(this).parent())[0];
+    grippie.style.marginRight = (grippie.offsetWidth - $(this)[0].offsetWidth) +'px';
+
+    function startDrag(e) {
+      staticOffset = textarea.height() - e.pageY;
+      textarea.css('opacity', 0.25);
+      $(document).mousemove(performDrag).mouseup(endDrag);
+      return false;
+    }
+
+    function performDrag(e) {
+      textarea.height(Math.max(32, staticOffset + e.pageY) + 'px');
+      return false;
+    }
+
+    function endDrag(e) {
+      $(document).unbind("mousemove", performDrag).unbind("mouseup", endDrag);
+      textarea.css('opacity', 1);
+    }
+  });
+};