ddaccordion.init({ headerclass: "expandable", //Shared CSS class name of headers group that are expandable contentclass: "categoryitems", //Shared CSS class name of contents group collapseprev: true, //Collapse previous content (so only one open at any time)? true/false defaultexpanded: [14], //index of content(s) open by default [index1, index2, etc]. [] denotes no content animatedefault: false, //Should contents open by default be animated into view? persiststate: false, //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: ["prefix", "", ""], //Additional HTML added to the header when it's collapsed and expanded, respectively ["position", "html1", "html2"] (see docs) animatespeed: "normal" //speed of animation: "fast", "normal", or "slow" })