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", //Revealcontent when user clicks or onmouseover the header? Valid value: "click" 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:["prefix", "", ""], //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 
//do nothing 
}, onopenclose:function(header, index, state, isuseractivated){ //custom code to run whenever a header is opened or closed 
//do nothing 
}
})