javascript - Persistent Cookie -

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document.setbackground.bgcolor.value certifiably works , stores hex value (such "000000" black. script works changing color of background of page when new 1 selected live form updates value.

my problem while code stores cookie browser, not work when close browser , reopen. want background start out whatever stored in cookie. there wrong code or browser settings?

function setbackground () {      if (document.setbackground.bgcolor.value != "none"){            document.body.bgcolor = "#" + document.setbackground.bgcolor.value;           document.cookie = "bgcolor=" + document.setbackground.bgcolor.value +                 ";expires=wednesday, 02-mar-2020 12:00:00 gmt;";      } }

this code embedded following html in setpreference.js file:

<html> <head>     <script src="setpreference.js"></script> </head> <body bgcolor="#9999cc">     <center>     <form name="setbackground">     change background color?     <select name="bgcolor" onchange="setbackground();" size="1">         <option value="none">select color</option>         <option value="9999cc">lavender</option>         <option value="999966">light brown</option>         <option value="66ffcc">light green</option>         <option value="ffffff">white</option>         </select>     </center>     </form> </body> </html>

when user selects item select you'll set bgcolor value , create cookie.

but need load cookie , set bgcolor.

you can use simple (append js):

// document.cookie - name1=value1; name2=value2; name3=value3  function getcookie(what) {     var cookies = document.cookie.split(/; ?/g); // have array of name=value pairs     for(var in cookies)     {         var pair  = cookies.split("=", 1);         var name  = decodeuricomponent(pair[0]);         var value = decodeuricomponent(pair[1]);          if (name == what)             return value;     } }  window.onload = function () {     var color = getcookie("bgcolor"); // note in cookie can value comes user. condition validate input wouldnt bad idea     document.setbackground.bgcolor.value = color;     setbackground(); }

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