How to use asp variable in JavaScript?

I have stored text box value in JavaScr开发者_JAVA百科ipt variable

 var strline1side1 = document.frmartwork.side1textbox1.value;

and then saved that value in JavaScript cookie

 document.cookie="lineside1="+strline1side1+";path=/;";

now I want to save this cookie in asp variable.

I tried this:

 <%=ASPVariable%> = document.frmartwork.side1textbox1.value;

but its not working

How can I do this?

you can use Set-Cookie Header rather than javascript

The Set-Cookie response header uses the following format:

Set-Cookie: <name>=<value>[; <name>=<value>]...
[; expires=<date>][; domain=<domain_name>]
[; path=<some_path>][; secure][; httponly]

You could store the value in a formfield e.g. hidden field and then access its contents by checking the Request.Forms collection

...
myCookieValue = Request.Forms("side1textbox1")
...

ASP runs on the server, JavaScript on the client. So you obviously cannot write to ASP variables from JavaScript.

You need to perform an AJAX call if you want to change something on the server.

Fascinating array of answers here is my 2 pennies worth

<%

    Dim aspVar

    aspVar = Request.Cookies("lineside1");
%>

Of course you understand this code will not see the cookie until the page in which is resides is requested after the client side code has set the cookie.