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/*
* Material Experience - Cookie Handling Class
*
* EYEMG - Interactive Media Group
* Created by Mike Crute (mcrute@eyemg.com) on 10/2/07
* Updated by Mike Crute (mcrute@eyemg.com) on 10/3/07
*
* Class to handle cookie CRUD. Code adapted from:
* http://www.quirksmode.org/js/cookies.html
*/
var Cookie = Object.extend(Class.create(),
{
/*
* Creates a cookie.
*/
create: function(name, value, days)
{
if (days)
{
var date = new Date().setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
var expires = "; expires=" + date.toGMTString();
}
document.cookie = name + "=" + value + (expires ? expires : '') + "; path=/";
},
/*
* Setting the expiration date of the cookie to -1 effectively deletes
* it.
*/
erase: function(name)
{
createCookie(name,"",-1);
},
/*
* Reads a cookie and returns the value.
*/
read: function(name)
{
var nameEQ = name + "=";
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,c.length);
}
if (c.indexOf(nameEQ) == 0)
{
return c.substring(nameEQ.length,c.length);
}
}
return null;
}
});
/*
* Shorthand for Cookie.read
*/
function $C(name)
{
return Cookie.read(name);
}
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