Question

IE6 and 7 return a js error “expected identifier, string or number” on this :

function fadeopacity (){

  var opacity = $("#pics_list > li:first").css("opacity");

  $("#pics_list > li").hover( 

     function () {

          $(this).stop().animate({
        opacity: 1,
       }, 300, null)},
                             ->this is the line with an error? 
     function () {

      $(this).stop().animate({
       opacity: opacity,
      }, 200, null)}

  ) 
 }

which blocks all the page’s scripts,
this doesn’t happen in IE8, and of course in every other browser out there

Answer 1

I believe you’re getting errors on these lines:

opacity: 1,
//and...
opacity: opacity,

Trailing commas tend to make IE angry 🙂

When you put the first on a single line it gets more apparent, like this:

.animate({ opacity: 1, }, 300, null)

Just remove the trailing comma in each place and see if you get any complaints then.