ddaccordion.init({
	headerclass: "submenuheader", //Shared CSS class name of headers group
	contentclass: "submenu", //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: true, //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: false, //persist state of opened contents within browser session?
	toggleclass: ["", ""], //Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"]
	togglehtml: ["suffix", "<img src='img/arrow.png' class='statusicon' style='margin-top:4px;margin-right:15px;' alt='arrow' />", "<img src='img/down-arrow.png' class='statusicon' style='margin-top:8px;margin-right:15px;' alt='arrow' />"], //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
	}
})

dd=0;
function changemusic()
{
if (dd==0)
{
dd=1;
document.getElementById('play_btn').src="images/music-icon-off.png";
}
else
{
dd=0;
document.getElementById('play_btn').src="images/music-icon-on.png";
}
}