for November 25, 1996: Source Code: Everything You Ever Wanted to Know About Cookies
What Cookies Are and How to Use Them Storing Cookies In Arrays Welcome New Visitors with A Special Page
This code is put in the HTML document where you want to utilitize Cookies:<HTML> <HEAD> <TITLE></TITLE> <SCRIPT LANGUAGE="JavaScript"> <!-- /* This code is Copyright (c) 1996 Nick Heinle and Athenia Associates, * all rights reserved. In order to receive the right to license this * code for use on your site the original code must be copied from the * Web site webreference.com/javascript/. License is granted to user to * reuse this code on their own Web site if and only if this entire copyright * notice is included. Code written by Nick Heinle of webreference.com. */ function getCookie (name) { var dcookie = document.cookie; var cname = name + "="; var clen = dcookie.length; var cbegin = 0; while (cbegin < clen) { var vbegin = cbegin + cname.length; if (dcookie.substring(cbegin, vbegin) == cname) { var vend = dcookie.indexOf (";", vbegin); if (vend == -1) vend = clen; return unescape(dcookie.substring(vbegin, vend)); } cbegin = dcookie.indexOf(" ", cbegin) + 1; if (cbegin == 0) break; } return null; } function setCookie (name, value, expires) { if (!expires) expires = new Date(); document.cookie = name + "=" + escape (value) + "; expires=" + expires.toGMTString() + "; path=/"; } function delCookie (name) { var expireNow = new Date(); document.cookie = name + "=" + "; expires=Thu, 01-Jan-70 00:00:01 GMT" + "; path=/"; } // --> </SCRIPT> </HEAD> <BODY> </BODY> </HTML>This code is put in the HTML document where you want to utilitize Cookies stored in Arrays:<HTML> <HEAD> <TITLE></TITLE> <SCRIPT LANGUAGE="JavaScript"> <!-- /* This code is Copyright (c) 1996 Nick Heinle and Athenia Associates, * all rights reserved. In order to receive the right to license this * code for use on your site the original code must be copied from the * Web site webreference.com/javascript/. License is granted to user to * reuse this code on their own Web site if and only if this entire copyright * notice is included. Code written by Nick Heinle of webreference.com. */ function getCookie (name) { var dcookie = document.cookie; var cname = name + "="; var clen = dcookie.length; var cbegin = 0; while (cbegin < clen) { var vbegin = cbegin + cname.length; if (dcookie.substring(cbegin, vbegin) == cname) { var vend = dcookie.indexOf (";", vbegin); if (vend == -1) vend = clen; return unescape(dcookie.substring(vbegin, vend)); } cbegin = dcookie.indexOf(" ", cbegin) + 1; if (cbegin == 0) break; } return null; } function setCookie (name, value, expires) { if (!expires) expires = new Date(); document.cookie = name + "=" + escape (value) + "; expires=" + expires.toGMTString() + "; path=/"; } function delCookie (name) { var expireNow = new Date(); document.cookie = name + "=" + "; expires=Thu, 01-Jan-70 00:00:01 GMT" + "; path=/"; } function setCookieArray(name){ this.length = setCookieArray.arguments.length - 1; for (var i = 0; i < this.length; i++) { this[i + 1] = setCookieArray.arguments[i + 1] setCookie (name + i, this[i + 1], expdate); } } function getCookieArray(name){ var i = 0; while (getCookie(name + i) != null) { this[i + 1] = getCookie(name + i); i++; this.length = i; } } var expdate = new Date(); expdate.setTime (expdate.getTime() + (24 * 60 * 60 * 1000 * 365)); var testArray = new setCookieArray("_jtotw", "my", "data", "is", "very", "important"); var testArray = new getCookieArray("_jtotw"); // --> </SCRIPT> </HEAD> <BODY> <SCRIPT> document.write ( testArray[1] + " " ); document.write ( testArray[2] + " " ); document.write ( testArray[3] + " " ); document.write ( testArray[4] + " " ); document.write ( testArray[5] + " " ); </SCRIPT> </BODY> </HTML>This code is put in the HTML document where you want to utilitize the Welcome page (most likely one of your main pages, where new visitors would start out):<HTML> <HEAD> <TITLE></TITLE> <SCRIPT LANGUAGE="JavaScript"> <!-- /* This code is Copyright (c) 1996 Nick Heinle and Athenia Associates, * all rights reserved. In order to receive the right to license this * code for use on your site the original code must be copied from the * Web site webreference.com/javascript/. License is granted to user to * reuse this code on their own Web site if and only if this entire copyright * notice is included. Code written by Nick Heinle of webreference.com. */ function getCookie (name) { var dcookie = document.cookie; var cname = name + "="; var clen = dcookie.length; var cbegin = 0; while (cbegin < clen) { var vbegin = cbegin + cname.length; if (dcookie.substring(cbegin, vbegin) == cname) { var vend = dcookie.indexOf (";", vbegin); if (vend == -1) vend = clen; return unescape(dcookie.substring(vbegin, vend)); } cbegin = dcookie.indexOf(" ", cbegin) + 1; if (cbegin == 0) break; } return null; } function setCookie (name, value, expires) { if (!expires) expires = new Date(); document.cookie = name + "=" + escape (value) + "; expires=" + expires.toGMTString() + "; path=/"; } function delCookie (name) { var expireNow = new Date(); document.cookie = name + "=" + "; expires=Thu, 01-Jan-70 00:00:01 GMT" + "; path=/"; } function toggleWelcome() { if (getCookie(cookieName) == "true") setCookie(cookieName, "false", top.expdate); else setCookie(cookieName, "true", top.expdate); } function offTemp() { if (getCookie(cookieName) == "true") { setCookie(cookieName, "offtemp", expdate); history.go(0); } } var expdate = new Date(); expdate.setTime(expdate.getTime() + (24 * 60 * 60 * 1000 * 365)); var cookieName = "_welcomeJTotW"; var welcomePage = "part03_welcome.html"; if (getCookie(cookieName) == null || getCookie(cookieName) == "true") { setCookie(cookieName, "true", expdate); document.write ('lt;FRAMESET ROWS = "100%, *" FRAMEBORDER = NO BORDER = 0gt;'); document.write ('lt;FRAME SCROLLING = AUTO SRC = "' + welcomePage + '"'); document.write ('MARGINWIDTH = 5 MARGINHEIGHT = 5gt;'); document.write ('lt;/FRAMESETgt;'); } else if (getCookie(cookieName) == "offtemp") { setCookie(cookieName, "true", expdate); } // --> </SCRIPT> </HEAD> <BODY> This is the normal Page. </BODY> </HTML>Then put this small form, which turns the welcome screen off, in the "welcome" HTML document:<FORM> <INPUT TYPE = "checkbox" onClick = "top.toggleWelcome()"> Don't show this welcome screen again. </FORM>You can also include this small link, which brings the user to the normal page by temporarily disabling the welcome cookie:<A HREF = "javascript:top.offTemp()">Enter Main Page</A>