$(function() {
var $getdt = $('dl#slide > dt');
var $getdd = $('dl#slide > dd');

$getdt.each(function() {
$(this).click(function() {
if (this.id.indexOf('item') != -1) {
var thisParent = this;
$getdd.each(function() {
if (this.id.indexOf(thisParent.id) != -1 && this.className == '') {
var ulHeight = $(this).children('ul').get(0).offsetHeight;
$(this).stop().animate({ height: ulHeight + 'px' }, 450);
}
else {
if (this.offsetHeight > 0) {
$(this).stop().animate({ height: 0 }, 450);
}
}

if (this.id.indexOf(thisParent.id) != -1 && this.className == '') {
$(this).addClass('selected');
$(thisParent).addClass('slide');
}
else {
$(this).removeClass();
var ePrevious = this.previousSibling;
while (ePrevious.nodeType != 1) { ePrevious = ePrevious.previousSibling; }
$(ePrevious).removeClass();
}
}); // end of $getdd.each
} // end of if
}); // end of click
}); // end of $getdt.each
});