Help with "Accordion Content script (v1.5.1)"

[derMatze]

1) Script Title:
Accordion Content script (v1.5.1)
2) Script URL (on DD):
http://www.dynamicdrive.com/dynamici...daccordion.htm
3) Describe problem:
I gave each main-element an id, like this:
<h3 class="menu_main" id="menu_news">&nbsp;</h3>
so that I can give it a background-image, that is different on each element.
But now I want to change this background-image (means the id to something like menu_news_open) when it is expanded... But I have no real clue how to do this, and what I need to change in the js-file...
Anyone here who can help me?

[ddadmin]

Well, the script does let you swap between two classes (not ids) for the headers, depending on whether they are expanded or contracted:

//Initialize first demo:
ddaccordion.init({
	headerclass: "mypets", //Shared CSS class name of headers group
	contentclass: "thepet", //Shared CSS class name of contents group
	revealtype: "click", //Reveal content when user clicks or onmouseover the header? Valid value: "click" or "mouseover"
	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: ["closeclass", "openclass"], //Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"]
	togglehtml: ["none", "", ""], //Additional HTML added to the header when it's collapsed and expanded, respectively  ["position", "html1", "html2"] (see docs)
	animatespeed: "fast", //speed of animation: "fast", "normal", or "slow"
	oninit:function(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
	}
})

Now, since you're giving each header a unique ID, within your CSS, you should also be able to specify a different background image pair for each header, by associating each ID with the two CSS classes specified above. Something like:

<style type="text/css">

#menu_news.openclass{
background: url("a1.gif")
}

#menu_news.closedclass{
background: url("a2.gif")
}

#menu_sports.openclass{
background: url("b1.gif")
}

#menu_sports.closedclass{
background: url("b2.gif")
}

</style>

Edit: Corrected an error in the CSS above