Script to scroll to anchor links divs and offset them

JavaScript
1

Hi there!

I’m in need of a script to scroll to anchor links divs and offset them. So far I found a few versions but none of them seem to work. I got this in my head:

<script>/**
  * Check a href for an anchor. If exists, and in document, scroll to it.
  * If href argument ommited, assumes context (this) is HTML Element,
  * which will be the case when invoked by jQuery after an event
  */
function scroll_if_anchor(href) {
    href = typeof(href) == "string" ? href : $(this).attr("href");

    // You could easily calculate this dynamically if you prefer
    var fromTop = 50;

    // If our Href points to a valid, non-empty anchor, and is on the same page (e.g. #foo)
    // Legacy jQuery and IE7 may have issues: http://stackoverflow.com/q/1593174
    if(href.indexOf("#") == 0) {
        var $target = $(href);

        // Older browser without pushState might flicker here, as they momentarily
        // jump to the wrong position (IE < 10)
        if($target.length) {
            $('html, body').animate({ scrollTop: $target.offset().top - fromTop });
            if(history && "pushState" in history) {
                history.pushState({}, document.title, window.location.pathname + href);
                return false;
            }
        }
    }
}    

// When our page loads, check to see if it contains and anchor
scroll_if_anchor(window.location.hash);

// Intercept all anchor clicks
$("body").on("click", "a", scroll_if_anchor);</script>

And nothing happens

the markup is as follows:

<div id="header">
    <a href="#home"><img class="header" src="images/logo.png" width="133" height="86" alt="Wildfire Images"></a>
    <nav>
    <ul id="navigation">
        <li><a class="scroll" href="#home">Home</a></li>
<li><a class="scroll" href="#about">About Us</a>
            <ul>
              <li><a class="scroll" href="#contact">Contact Us</a></li>
            </ul>
        </li>

etc

and the divs are as follows:

<div id="about" class="panel">

Please help, I have to fix this problem…

2

Are there any console log errors?

3