please correct me if im wrong

I downloaded a supersize plugin somewhere on the net then I try to put it into a page containing a slider plugin, I try to resize the whole 4 images in the slider to fit the page using lines below:

should i write it like this ?

1. <script type="text/javascript">     
2.     $(document).ready(function() {         
3.         $('div.slide').get().supersize(); 
4. </script> 

it works when I test it - but I noticed the 100% width + 100% height overlapping the page and not working correctly, 

please correct me