--- /dev/null
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements. See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License. You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+function init()
+{ //embedded in the doc
+ //ndeSetTextSize();
+}
+
+function checkBrowser(){
+ if (!document.getElementsByTagName){
+ return true;
+ }
+ else{
+ return false;
+ }
+}
+
+
+function ndeSetTextSize(chgsize,rs)
+{
+ var startSize;
+ var newSize;
+
+ if (!checkBrowser)
+ {
+ return;
+ }
+
+ startSize = parseInt(ndeGetDocTextSize());
+
+ if (!startSize)
+ {
+ startSize = 16;
+ }
+
+ switch (chgsize)
+ {
+ case 'incr':
+ newSize = startSize + 2;
+ break;
+
+ case 'decr':
+ newSize = startSize - 2;
+ break;
+
+ case 'reset':
+ if (rs) {newSize = rs;} else {newSize = 16;}
+ break;
+
+ default:
+ try{
+ newSize = parseInt(ndeReadCookie("nde-textsize"));
+ }
+ catch(e){
+ alert(e);
+ }
+
+ if (!newSize || newSize == 'NaN')
+ {
+ newSize = startSize;
+ }
+ break;
+
+ }
+
+ if (newSize < 10)
+ {
+ newSize = 10;
+ }
+
+ newSize += 'px';
+
+ document.getElementsByTagName('html')[0].style.fontSize = newSize;
+ document.getElementsByTagName('body')[0].style.fontSize = newSize;
+
+ ndeCreateCookie("nde-textsize", newSize, 365);
+}
+
+function ndeGetDocTextSize()
+{
+ if (!checkBrowser)
+ {
+ return 0;
+ }
+
+ var size = 0;
+ var body = document.getElementsByTagName('body')[0];
+
+ if (body.style && body.style.fontSize)
+ {
+ size = body.style.fontSize;
+ }
+ else if (typeof(getComputedStyle) != 'undefined')
+ {
+ size = getComputedStyle(body,'').getPropertyValue('font-size');
+ }
+ else if (body.currentStyle)
+ {
+ size = body.currentStyle.fontSize;
+ }
+
+ //fix IE bug
+ if( isNaN(size)){
+ if(size.substring(size.length-1)=="%"){
+ return
+ }
+
+ }
+
+ return size;
+
+}
+
+
+
+function ndeCreateCookie(name,value,days)
+{
+ var cookie = name + "=" + value + ";";
+
+ if (days)
+ {
+ var date = new Date();
+ date.setTime(date.getTime()+(days*24*60*60*1000));
+ cookie += " expires=" + date.toGMTString() + ";";
+ }
+ cookie += " path=/";
+
+ document.cookie = cookie;
+
+}
+
+function ndeReadCookie(name)
+{
+ var nameEQ = name + "=";
+ var ca = document.cookie.split(';');
+
+
+ for(var i = 0; i < ca.length; i++)
+ {
+ var c = ca[i];
+ while (c.charAt(0) == ' ')
+ {
+ c = c.substring(1, c.length);
+ }
+
+ ctest = c.substring(0,name.length);
+
+ if(ctest == name){
+ return c.substring(nameEQ.length,c.length);
+ }
+ }
+ return null;
+}