Force all textareas to be 30 rows height

--HG--
extra : convert_revision : svn%3Ab85faa78-f9eb-468e-a121-7cced6da292c%40111

sites/scrapy.org/templates/admin/base_site.html

@@ -13,30 +13,19 @@
 <script type="text/javascript">
 /* <![CDATA[ */
 function textarea_resize() {
-    //
-    // Resize all textareas
-    //
     textareas = document.getElementsByTagName("textarea");
     for (var i = 0; i <= textareas.length-1; i++) {
         try {
-            textarea = textareas[i];
-            try {
-                rows = textarea.firstChild.data.split("\n").length;
-                if (rows > 30) {
-                    rows = 30;
-                }
-            } catch(e) {
-                rows = 30;
-            }
-            textarea.rows = rows;
+            textarea = textareas[i].rows = 30;
         } catch (e) {
             alert("textarea_resize() error:" + e);
         }
     }
 }
-textarea_resize()
+textarea_resize();
 /* ]]> */
 </script>
+
 <style type="text/css">
 textarea {
     font-family: monospace;