Issue with slideDown in IE
<p>I have this line of code:</p>

<pre><code>&lt;SCRIPT type=text/javascript&gt;$(document).ready(function(){$("#StraightFoods").next("div.menu_body").slideDown("slow");});&lt;/SCRIPT&gt;
</code></pre>

<p>Here is the HTML for the section:</p>

<pre><code>&lt;div class="menu_head" id="StraightFoods" title="Straight Foods"&gt;
    &lt;div title="#d99043" id="StraightFoods_colour"&gt;&lt;/div&gt;
    &lt;a rel="#d99043" href="http://URL/Category/0/Straight_Foods.html"&gt;Straight Foods&lt;/a&gt;
&lt;/div&gt;
&lt;div class="menu_body"&gt;
    &lt;div class="leftbox_item" id="SunflowerSeeds"&gt;
        &lt;a rel="#d99043" href="http://URL/Category/0/Straight_Foods~Sunflower_Seeds.html"&gt;&lt;span style="color: #d99043"&gt;Sunflower Seeds&lt;/span&gt;&lt;/a&gt;
    &lt;/div&gt;
    &lt;div class="leftbox_item" id="PeanutKernels"&gt;
        &lt;a href="http://URL/Category/0/Straight_Foods~Peanut_Kernels.html"&gt;&lt;span style="color: #d99043"&gt;Peanut Kernels&lt;/span&gt;&lt;/a&gt;
    &lt;/div&gt;
    &lt;div class="leftbox_item" id="StraightSeeds"&gt;
        &lt;a href="http://URL/Category/0/Straight_Foods~Straight_Seeds.html"&gt;&lt;span style="color: #d99043"&gt;Straight Seeds&lt;/span&gt;&lt;/a&gt;
    &lt;/div&gt;
&lt;/div&gt;
</code></pre>

<p>that works in firefox but for some reason triggers errors in IE and stops the rest of the JQuery working on my page. When viewing in IE, I see errors loading the page which directs me to this section in JQuery.js:</p>

<p>Line 4031 Char 5:</p>

<pre><code>jQuery.extend( jQuery.fx, {
    speeds:{
        slow: 600,
        fast: 200,
        // Default speed
        _default: 400
    },
    step: {

        opacity: function(fx){
            jQuery.attr(fx.elem.style, "opacity", fx.now);
        },

        _default: function(fx){
            if ( fx.elem.style &amp;&amp; fx.elem.style[ fx.prop ] != null )
                fx.elem.style[ fx.prop ] = fx.now + fx.unit; //Error Line!!
            else
                fx.elem[ fx.prop ] = fx.now;
        }
    }
});
</code></pre>

<p>If I comment out the if / else section, my page works fine but keeping it in causes slideDown to break the rest of my page. Any ideas?</p>
