jquery: how to use an id selector? [duplicate]

This question already has answers here: 开发者_Python百科 Closed 12 years ago.

Possible Duplicate:

what does #someDiv mean?

i am doing this:

onmouseover="evt.target.setAttribute('opacity', '0.5'); $('#someDiv').show();" onmouseout="evt.target.setAttribute('opacity','1)'); $('#someDiv').hide();"

but i guess i need something called an ID selector?

anyway how do i make it so that when there is a mouseover the object, i get a little popup ?

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$('#someDiv') is selecting the element with ID="someDiv", so selectors might not be your problem.

Apart from using the onmouseover event attribute, the code you provided should basically work. Are you seeing any JS errors, or have other debug results you could share?

Edit:

It's probably (maybe?) unrelated to your problem, but you should consider moving all the JS logic to a linked JS file instead of using the onmouseover property. jQuery's $('#your-selector').mouseover() method is a much better way to handle this. (http://api.jquery.com/mouseover/)