diff --git a/htdocs/sql/js/indexes.js b/htdocs/sql/js/indexes.js
new file mode 100755
--- /dev/null
+++ b/htdocs/sql/js/indexes.js
@@ -0,0 +1,91 @@
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * function used for index manipulation pages
+ *
+ * @version $Id: indexes.js 10142 2007-03-20 10:32:13Z cybot_tm $
+ */
+
+/**
+ * Ensures a value submitted in a form is numeric and is in a range
+ *
+ * @param   object   the form
+ * @param   string   the name of the form field to check
+ * @param   integer  the minimum authorized value
+ * @param   integer  the maximum authorized value
+ *
+ * @return  boolean  whether a valid number has been submitted or not
+ */
+function checkFormElementInRange(theForm, theFieldName, message, min, max)
+{
+    var theField         = theForm.elements[theFieldName];
+    var val              = parseInt(theField.value);
+
+    if (typeof(min) == 'undefined') {
+        min = 0;
+    }
+    if (typeof(max) == 'undefined') {
+        max = Number.MAX_VALUE;
+    }
+
+    // It's not a number
+    if (isNaN(val)) {
+        theField.select();
+        alert(errorMsg1);
+        theField.focus();
+        return false;
+    }
+    // It's a number but it is not between min and max
+    else if (val < min || val > max) {
+        theField.select();
+        alert(message.replace('%d', val));
+        theField.focus();
+        return false;
+    }
+    // It's a valid number
+    else {
+        theField.value = val;
+    }
+
+    return true;
+} // end of the 'checkFormElementInRange()' function
+
+
+/**
+ * Ensures indexes names are valid according to their type and, for a primary
+ * key, lock index name to 'PRIMARY'
+ *
+ * @return  boolean  false if there is no index form, true else
+ */
+function checkIndexName()
+{
+    if (typeof(document.forms['index_frm']) == 'undefined') {
+        return false;
+    }
+
+    // Gets the elements pointers
+    var the_idx_name = document.forms['index_frm'].elements['index'];
+    var the_idx_type = document.forms['index_frm'].elements['index_type'];
+
+    // Index is a primary key
+    if (the_idx_type.options[0].value == 'PRIMARY' && the_idx_type.options[0].selected) {
+        document.forms['index_frm'].elements['index'].value = 'PRIMARY';
+        if (typeof(the_idx_name.disabled) != 'undefined') {
+            document.forms['index_frm'].elements['index'].disabled = true;
+        }
+    }
+
+    // Other cases
+    else {
+        if (the_idx_name.value == 'PRIMARY') {
+            document.forms['index_frm'].elements['index'].value = '';
+        }
+        if (typeof(the_idx_name.disabled) != 'undefined') {
+            document.forms['index_frm'].elements['index'].disabled = false;
+        }
+    }
+
+    return true;
+} // end of the 'checkIndexName()' function
+
+
+onload = checkIndexName;