Jquery if not working

I have this code .. the problem is that the CSS is not being applied in both divs but only in the first #main-wrapper

I have the same code, but this time on a button click and its working, but with the if statement only one works .. im not sure if the codes are wrong somewhere, please help ... I tried to install the script at the end body tag but still nothing

if (window.location.href.indexOf("#expand") > -1) {
  $( "#main-wrapper" ).animate({ 'width':'984px' }, 'slow');
  $( "#sidebar-wrapper" ).animate({ 'display':'none' }, 'slow');   
}