SPANs reduced width

[SteMMo33]

Hello,
I'm using your wonderful plugin in my project: I defined a list of 5 images, scrolling to right. The images are tagged with onclick handler.
Sometimes happens that some images are not more sensible to the click: I discovered in the developer window that the containing SPAN was resized to 20px.
My code is a series of lines like:

<span onclick="injectCode();"><img src="images/demoSlide/demo_1.png" style="margin-left:20px;background-color:transparent;" /></span>

After the first round of images the plugin add to the style the opacity and width attributes.
The width is almost always equal to 517 and the clicks work well.
Sometimes the width of the SPAN is reduced to 20px so the sensible area is very small.
Is there a reason?

Thanks, regards

[SteMMo33]

It seems it took the margin (???) .. I removed them and, so far, I have no more problems ..