$(document).ready(function(){
	var default_expanded = new Array();
	if ($("div.sidebar_parameter_value_container").find(":checkbox[@checked]").size() == 0)
		default_expanded[0] = 0;
	else
	{
		$("div.sidebar_parameter_value_container").each(function(i){
			if ($(this).find(":checkbox[@checked]").size() > 0)
				default_expanded.push(i);
		});
	}

	ddaccordion.init({
		headerclass: "parameter_category", //Shared CSS class name of headers group
		contentclass: "sidebar_parameter_value_container", //Shared CSS class name of contents group
		collapseprev: false, //Collapse previous content (so only one open at any time)? true/false
		defaultexpanded: default_expanded, //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: ["sidebar_parameter_expand", "sidebar_parameter_collapse"], //Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"]
		togglehtml: ["prefix", "<img src='images/expand_parameter.gif' /> ", "<img src='images/collapse_parameter.gif' /> "], //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"
	});
});