bad experience with cookies

[gurmeet]

hi friends..
i am using cookie on m web page, a value is stored in cookie ,after that , the value is reterieved from the cookie and used in web page...

all is going well...

but when i open any link in other tab of my browser, ( means a same page in two tabs), in new tab it doesnot show the value of cookie....

 if(isset($_COOKIE['modelid']))
    {

           $selmodel    =    $_COOKIE[modelid];
    }
    else
    {
        $selmodel ='No Model Selected';
    } 

this code is used

[bluewalrus]

Are you at the same addresses, both http://www.site.com or http://site.com?

Try putting the key in quotes when setting its value.

$_COOKIE['modelid']