diff --git a/js/common.js b/js/common.js
index b3e996c022..b595108f83 100644
--- a/js/common.js
+++ b/js/common.js
@@ -14,78 +14,6 @@ var querywindow = '';
  */
 var query_to_load = '';
 
-/**
- * attach a function to object event
- *
- * <code>
- * addEvent(window, 'load', PMA_initPage);
- * </code>
- * @param object or id
- * @param string event type (load, mouseover, focus, ...)
- * @param function to be attached
- */
-function addEvent(obj, type, fn)
-{
-    if (obj.attachEvent) {
-        obj['e' + type + fn] = fn;
-        obj[type + fn] = function() {obj['e' + type + fn](window.event);}
-        obj.attachEvent('on' + type, obj[type + fn]);
-    } else {
-        obj.addEventListener(type, fn, false);
-    }
-}
-
-/**
- * detach/remove a function from an object event
- *
- * @param object or id
- * @param event type (load, mouseover, focus, ...)
- * @param function naem of function to be attached
- */
-function removeEvent(obj, type, fn)
-{
-    if (obj.detachEvent) {
-        obj.detachEvent('on' + type, obj[type + fn]);
-        obj[type + fn] = null;
-    } else {
-        obj.removeEventListener(type, fn, false);
-    }
-}
-
-/**
- * get DOM elements by html class
- *
- * @param string class_name - name of class
- * @param node node - search only sub nodes of this node (optional)
- * @param string tag - search only these tags (optional)
- */
-function getElementsByClassName(class_name, node, tag)
-{
-    var classElements = new Array();
-
-    if (node == null) {
-        node = document;
-    }
-    if (tag == null) {
-        tag = '*';
-    }
-
-    var j = 0, teststr;
-    var els = node.getElementsByTagName(tag);
-    var elsLen = els.length;
-
-    for (i = 0; i < elsLen; i++) {
-        if (els[i].className.indexOf(class_name) != -1) {
-            teststr = "," + els[i].className.split(" ").join(",") + ",";
-            if (teststr.indexOf("," + class_name + ",") != -1) {
-                classElements[j] = els[i];
-                j++;
-            }
-        }
-    }
-    return classElements;
-}
-
 /**
  * sets current selected db
  *
diff --git a/js/tbl_change.js b/js/tbl_change.js
index 8fc7eca337..5e6ce842e0 100644
--- a/js/tbl_change.js
+++ b/js/tbl_change.js
@@ -70,21 +70,8 @@ function daysInFebruary (year){
 //function to convert single digit to double digit
 function fractionReplace(num)
 {
-    num=parseInt(num);
-    var res="00";
-    switch(num)
-    {
-        case 1:res= "01";break;
-        case 2:res= "02";break;
-        case 3:res= "03";break;
-        case 4:res= "04";break;
-        case 5:res= "05";break;
-        case 6:res= "06";break;
-        case 7:res= "07";break;
-        case 8:res= "08";break;
-        case 9:res= "09";break;
-        }
-    return res;
+    num = parseInt(num);
+    return num >= 1 && num <= 9 ? '0' + num : '00';
 }
 
 /* function to check the validity of date