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javascript question

javascript question# Java - 爪哇娇娃

m*r2004-07-26 07:07

1 楼

hi,
i need a checkbox, when checked, the page looks one way, when unchecked, the
page looks another way.
any sample code for this kind of thing?
3x

c*g2004-07-26 07:07

2 楼

google: javascript checkbox onclick

【在 m****r 的大作中提到】

: hi,
: i need a checkbox, when checked, the page looks one way, when unchecked, the
: page looks another way.
: any sample code for this kind of thing?
: 3x

c*y2004-07-26 07:07

3 楼

For example, if you want to display an alert window when a checkbox is
checked,

【在 m****r 的大作中提到】

: hi,
: i need a checkbox, when checked, the page looks one way, when unchecked, the
: page looks another way.
: any sample code for this kind of thing?
: 3x

w*t2004-07-26 07:07

4 楼

well, not exact - but, is there a way at server side to check if client
browser has javascript enabled/disabled - such as check it in jsp etc
thanks

o*e2004-07-26 07:07

5 楼

not impossible, but it's normally checked on client side.

【在 w******t 的大作中提到】

: well, not exact - but, is there a way at server side to check if client
: browser has javascript enabled/disabled - such as check it in jsp etc
: thanks

g*s2004-07-26 07:07

6 楼

得第二次REQUEST才能知道吧?放个HIDDEN变量用JAVASCRIPT改,再REQUEST应该
就可以知道了,用AUTO-REFRESH可以让用户觉得就一次REQUEST.

【在 w******t 的大作中提到】

: well, not exact - but, is there a way at server side to check if client
: browser has javascript enabled/disabled - such as check it in jsp etc
: thanks

m*t2004-07-26 07:07

7 楼

Hmm, I didn't think it through so take my words with some salt - you
can probably do it in the first request. Just have a piece of javascript
setting an image url. If this image url is requested, the javascript
worked, otherwise not.
That said, I don't see much the server side can do with the first
request even after it has determined the client javascript availability.

【在 g*s 的大作中提到】

: 得第二次REQUEST才能知道吧?放个HIDDEN变量用JAVASCRIPT改,再REQUEST应该
: 就可以知道了,用AUTO-REFRESH可以让用户觉得就一次REQUEST.

o*e2004-07-26 07:07

8 楼

that image is a second request.

【在 m******t 的大作中提到】

: Hmm, I didn't think it through so take my words with some salt - you
: can probably do it in the first request. Just have a piece of javascript
: setting an image url. If this image url is requested, the javascript
: worked, otherwise not.
: That said, I don't see much the server side can do with the first
: request even after it has determined the client javascript availability.

m*t2004-07-26 07:07

9 楼

Yes, but you don't need to refresh the whole page. That's what counts -
from a user experience standpoint, at least.

【在 o***e 的大作中提到】

: that image is a second request.