initial commitHEADmaster

1 files changed, 19 insertions, 0 deletions

diff --git a/src/forum.js b/src/forum.js
new file mode 100644
index 0000000..27381f1
--- /dev/null
+++ b/src/forum.js
@@ -0,0 +1,19 @@
+(function(){
+  function absoluteY(obj){
+    var top = 0;
+    if( obj.offsetParent ){
+      do{
+        top += obj.offsetTop;
+      }while( obj = obj.offsetParent );
+    }
+    return top;
+  }
+  var x = document.getElementsByClassName('forumSel');
+  if(x[0]){
+    var w = window.innerHeight;
+    var h = x[0].scrollHeight;
+    var y = absoluteY(x[0]);
+    if( w>h ) y = y + (h-w)/2;
+    if( y>0 ) window.scrollTo(0, y);
+  }
+})();