delete cookies using javascript

I am working on Asp.Net Mvc and am creating a cookie using in one page.I want when a user moves to her page the cookie gets deleted.Further开发者_JAVA技巧 if the same page (in cookie was created) is refreshed the cookie should not be deleted.How can i achieve this.

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quirksmode.org has some pretty handy functions for creating/reading/manipulating/deleting cookies.

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When you're creating the cookie, set the expires like this:

document.cookie="cookie_name=cookie_value; expires=Thu, 01-Jan-1970 00:00:01 GMT";