// ----------------------------------------------------------------------------- // header.js // This script will automatically populate the www.jhuapl.edu // navigation. It uses the directory structure to determine // if a navigation link should be highlighted because it is the // current page. Pages must be in the proper location for the // script to work correctly. Directories must use lowercase letters // for code comparison. // // DIRECTORY STRUCTURE REQUIREMENTS: // currentDirectory: is used to represent the left navigation bar // currentSubDirectory: is used to represent the burgundy sub-navigation // bar across the top of the page below JHUAPL // // IMAGE REQUIREMENTS: // Images have three states. // directoryname.jpg = highlighted link/current page (gold text) // directoryname1.jpg = off state (white text) // directoryname2.jpg = over state (white text - raised) // Left bar images should be stored in /navImages // Top sub-navigation images should be stored in the /navImages/currentDirectory // // HTML PAGE REQUIREMENTS: // 1. Add the following line of code in html header // // // 2. Make page margins set to 0 & header_init() call. // Calling the header_init() function in the onload event of // the body tag will automatically set the navigation. This // function does not require parameters. // // 3. Add the following line of code after the tag. // // 4. Add the following line of code before the tag. // // // COMMENTS: // To make the code portable the following must be changed: // 1. imageDirectory = "http://www.jhuapl.edu/navImages/" should be set // to the proper navImages location. // 2. URLbase = "www.jhuapl.edu" should be set the proper URL. // (occurs twice in this script // 3. chars = 19 should be set to the number of characters in the URLbase // (occurs twice in this script) // ----------------------------------------------------------------------------- document.write(''); function header_init(){ imageDirectory = "http://www.jhuapl.edu/navImages/"; currentDirectory = getCurrentDirectory(); currentImage = imageDirectory + currentDirectory + "2.jpg"; header_swapImage(currentDirectory,'',currentImage ,1); currentSubDirectory = getCurrentSubDirectory(); if (currentSubDirectory.length == 0){ //&& (currentPage == "index" || currentPage.length == 0)) { return; } currentImage = imageDirectory + currentDirectory + "/" + currentSubDirectory + "2.jpg"; subheader_swapImage(currentSubDirectory,'',currentImage ,1); } function header_swapImgRestore() { //v3.0 var i,x,a=document.header_sr; for(i=0;a&&i0&&parent.frames.length) { d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);} if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i URLbase = "jhuapl.edu"; chars = 10; currentDirectory = document.URL; currentDirectory = currentDirectory.toLowerCase(); offset = currentDirectory.lastIndexOf(URLbase); /*alert(offset); alert(chars); */ currentDirectory = currentDirectory.substr(offset + chars + 1); offset = currentDirectory.indexOf("\\"); if (offset > 0) { currentDirectory = currentDirectory.substr(0,currentDirectory.indexOf("\\")); } else { currentDirectory = currentDirectory.substr(0,currentDirectory.indexOf("/")); } return currentDirectory; } function WWW_findObj(n, d) { //v4.01 var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) { d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);} if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i function subheader_swapImgRestore() { //v3.0 var i,x,a=document.header_sr; for(i=0;a&&i0&&parent.frames.length) { d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);} if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i URLbase = "jhuapl.edu"; chars = 10; tempDirectory = document.URL; tempDirectory = tempDirectory.toLowerCase(); offset = tempDirectory.lastIndexOf(URLbase); tempDirectory = tempDirectory.substr(offset + chars + 1); offset = tempDirectory.indexOf("\\"); if (offset > 0) { tempDirectory = tempDirectory.substr(tempDirectory.indexOf("\\") + 1); } else { tempDirectory = tempDirectory.substr(tempDirectory.indexOf("/") + 1); } offset = tempDirectory.indexOf("\\"); if (offset > 0) { currentSubDirectory = tempDirectory.substr(0,tempDirectory.indexOf("\\")); } else { currentSubDirectory = tempDirectory.substr(0,tempDirectory.indexOf("/")); } return currentSubDirectory; } function getPage() { var currentPage; var offset; currentPage = document.URL; currentPage = currentPage.toLowerCase(); currentPage = currentPage.substr(currentPage.lastIndexOf("/") + 1); //strip URL down to page name currentPage = currentPage.substr(currentPage.lastIndexOf("\\") + 1); //strip URL down to page name when running locally currentPage = currentPage.substr(0,currentPage.lastIndexOf(".")); //strip off .htm or .html return currentPage; } function getPageAndExt() { var currentPage; var offset; currentPage = document.URL; currentPage = currentPage.toLowerCase(); currentPage = currentPage.substr(currentPage.lastIndexOf("/") + 1); //strip URL down to page name currentPage = currentPage.substr(currentPage.lastIndexOf("\\") + 1); //strip URL down to page name when running locally return currentPage; } function getActiveImage(currentImage) { extension = currentImage.substr(currentImage.lastIndexOf(".") + 1); //get extension currentImage = currentImage.substr(0,currentImage.lastIndexOf(".") - 1); //strip off extension and the 1 or 2 currentImage = currentImage + "." + extension; return currentImage; } function header(main) { document.write(""); document.write("

"); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write("

"); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); currentPage = getPage(); currentSubDirectory = getCurrentSubDirectory(); if (typeof verifyDate == 'undefined') { verifyDate = "01/01/2008" } if (includefoot != "nofooter") { document.write(""); document.write(""); document.write(""); document.write("

"); currentPage = getPage(); currentSubDirectory = getCurrentSubDirectory(); currentDirectory = getCurrentDirectory(); pageURL = document.URL; pageURL = pageURL.toLowerCase(); if (pageURL.indexOf("techdigest") > -1) { subheader_technicaldigest(); return; } if (pageURL.indexOf("weather") > -1) { subheader_weather(); return; } if (currentDirectory == "newscenter" || currentDirectory == "weather") { } else if (currentSubDirectory.length == 0 && (currentPage == "index" || currentPage.length == 0)) { return; } if (currentDirectory == "aboutapl" && currentSubDirectory =="diversity") { //no header } if (currentDirectory == "weather") { subheader_weather(); } } function change_it() { } function subheader_technicaldigest() { document.write("Technical Digest
"); document.write("

"); } function subheader_ott() { } function subheader_weather() { document.write("Weather Home
"); document.write("APL
"); document.write("Local Area
"); document.write("National
"); document.write("International
"); document.write("Education
"); document.write("

"); } function footer(includefoot, keepStats, verify, verifyDate) { document.write("

"); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write("

The Johns Hopkins University Applied "); document.write("Physics Laboratory
11100 Johns Hopkins Road, Laurel, Maryland"); document.write(" 20723 • 240-228-5000 (Washington, DC, area) • 443-778-5000 (Baltimore area)
"); document.write("© 2009 - Privacy"); document.write("Notice/Legal Disclaimer

Last verified: "); document.write(verifyDate); document.write("

"); } if (keepStats == "yesstats") { currentPageAndPath = "www.jhuapl.edu/"; currentDirName = getCurrentDirectory(); if (currentDirName.length > 0) { currentPageAndPath = currentPageAndPath + currentDirName + "/"; } currentSubDirName = getCurrentSubDirectory(); if (currentSubDirName.length > 0) { currentPageAndPath = currentPageAndPath + currentSubDirName + "/"; } currentPageName = getPageAndExt(); if (currentPageName.length > 0) { currentPageAndPath = currentPageAndPath + currentPageName } pageName = currentPageAndPath; var code = ' '; document.write(""); br = navigator.appName + parseInt(navigator.appVersion); if (code != ' ' || br == 'Netscape2') { document.write(code); } else { document.write(''+ ' '); } } }