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<!DOCTYPE html> <html> <head> <script> function setCookie(cname,cvalue,exdays) { var d = new Date(); d.setTime(d.getTime() + (exdays*24*60*60*1000)); var expires = "expires=" + d.toGMTString(); document.cookie = cname+"="+cvalue+"; "+expires; } function getCookie(cname) { var name = cname + "="; 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); if (c.indexOf(name) == 0) { return c.substring(name.length, c.length); } } return ""; } function checkCookie() { var user=getCookie("username"); if (user != "") { alert("Welcome again " + user); } else { user = prompt("Please enter your name:",""); if (user != "" && user != null) { setCookie("username", user, 30); } } } </script> </head> <body onload="checkCookie()"> </body> <!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_cookie_username by HTTrack Website Copier/3.x [XR&CO'2014], Fri, 23 Jan 2015 07:36:47 GMT --> </html>
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