ddaccordion.init({
            headerclass: "expandable", /* Shared CSS class name of headers group that are expandable */
            contentclass: "categoryitems", /* Shared CSS class name of contents group */
            revealtype: "click", /* Reveal content when user clicks or onmouseover the header? Valid value: "click", "clickgo", or "mouseover" */
            mouseoverdelay: 200, /* if revealtype="mouseover", set delay in milliseconds before header expands onMouseover */
            collapseprev: true, /* Collapse previous content (so only one open at any time)? true/false  */
            defaultexpanded: [0], /* index of content(s) open by default [index1, index2, etc]. [] denotes no content */
            onemustopen: false, /* Specify whether at least one header should be open always (so never all headers closed) */
            animatedefault: false, /* Should contents open by default be animated into view? */
            persiststate: true, /* persist state of opened contents within browser session? */
            toggleclass: ["", "openheader"], /* Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"] */
            togglehtml: ["suffix", "<img src='images/plus.gif' class='statusicon' />", "<img src='images/minus.gif' class='statusicon' />"], /* Additional HTML added to the header when it's collapsed and expanded, respectively  ["position", "html1", "html2"] (see docs) */
            animatespeed: "fast", /* speed of animation: integer in milliseconds (ie: 200), or keywords "fast", "normal", or "slow" */
            oninit:function(headers, expandedindices){ /* custom code to run when headers have initalized */
            },
            onopenclose:function(header, index, state, isuseractivated){ /* custom code to run whenever a header is opened or closed */
            }
         });