// JavaScript Document
function setUp(){
	var answerElmnts=getByClass(document,"answer","div");
	for (i=0;i<answerElmnts.length;i++){
		answerElmnts[i].style.display="none";
	}
}

function answerOpen(obj){
	var answerElmnts=getByClass(obj.parentNode,"answer","div");
	if (answerElmnts[0].style.display=="none"){
		answerElmnts[0].style.display="block";
	}else{
		answerElmnts[0].style.display="none";
	}
}

function getByClass(parentElmnt,className,tagName){
	var cElmnts=new Array();
	var elmnts=parentElmnt.getElementsByTagName(tagName);
	for (i=0;i<elmnts.length;i++){
		if (elmnts[i].className==className){
			cElmnts.push(elmnts[i]);
		}
	}
	return cElmnts;
}