Question

Possible Duplicate:
Using Javascript in CSS

is it possible to use javascript codes in css background?
mean something like this :

style=”background:url(javascript:—javascript codes—);”
does this syntax work or not?

thanks in advance

Answer 1

Technically yes, with an expression:

background: expression(JS code resulting in a vali background image string here)

However I think it only works in IE and it’s very bad practice because it may have to re-evaluate the code hundreds of times every second.

Instead, you should have a suitable default there, and then use JavaScript later on the page to change it.