Values stored in cookies may not have semicolons, commas, or spaces. You should use the handy "escape()" function to encode the values, and "unescape()" to retrieve them.//Sets cookie of current value for myTextBoxfunction TextBoxOnchange() {var myBox = window.document.getElementById(myTextBox");document.cookie = "myTextBox="+ escape(myBox.value) + getExpirationString();}//return a string like ";expires=Thu, 5 Jan 2006 16:07:52 UTC"function getExpirationString() {var exp = new Date();var threemonths = exp.getTime()+(120*24*60*60*1000);exp.setTime(threemonths);return ";expires="+exp.toGMTString();}This is called from the event handler in the HTML.<input name="myTextBox" type="text" id="myTextBox"onchange="javascript:TextBoxOnchange()" />
