function getElementsByClassName(classname, node) 
{
	if(!node) node = document.getElementsByTagName("body")[0];
	var a = [];
	var re = new RegExp('\\b' + classname + '\\b');
	var els = node.getElementsByTagName("*");
	for(var i=0,j=els.length; i<j; i++)
		if(re.test(els[i].className))a.push(els[i]);
	return a;

}


function dropDownMore(id)
{
	var box = id.parentNode.parentNode.parentNode.parentNode;
	var body = getElementsByClassName('dropDownBody', box)[0];
	var less = getElementsByClassName('dropDownLess', box)[0];
	var more = getElementsByClassName('dropDownMore', box)[0];
	
	body.style.display = 'block'; 
	less.style.display = 'block';
	more.style.display = 'none';
}

function dropDownLess(id)
{
	var box = id.parentNode.parentNode.parentNode.parentNode;
	var body = getElementsByClassName('dropDownBody', box)[0];
	var less = getElementsByClassName('dropDownLess', box)[0];
	var more = getElementsByClassName('dropDownMore', box)[0];
	
	body.style.display = 'none'; 
	less.style.display = 'none';
	more.style.display = 'block';
	window.scrollTo(0,0);
}