| /* |
| * 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; |
| } |