// JavaScript Document

var curlay = undefined;

function getContentLayer(id)
{
	return 	document.getElementById("word_" + id).getElementsByTagName("div")[1]; //childNodes[3];
}

function getLinkLayer(id)
{
	return document.getElementById("word_" + id).getElementsByTagName("div")[0]; //childNodes[1];
}

function switchImg(id, strType)
{
	var urlImg = (strType == "open")? "../images/part/arrowOpenGlos.gif":"../images/part/arrowCloseGlos.gif";
	var img = getLinkLayer(id).getElementsByTagName("img")[0];
	img.src = urlImg;
}

function show(id)
{
	var lay = document.getElementById("word_" + id);
	if(lay != undefined)
	{
		var contentLayer =  getContentLayer(id);
		if (contentLayer.style.display == 'none')
		{
			hide(curlay);
			curlay = id;
			contentLayer.style.display = '';
			switchImg(id, "open");
		} 
		else
		{
			hide(id);	
		}
	}
	return false;
}

function hide(id)
{
	var lay = document.getElementById("word_" + id);
	if(lay != undefined)
	{
		var contentLayer =  getContentLayer(id);
		if (contentLayer.style.display != 'none')
		{
			contentLayer.style.display = 'none';
			switchImg(id, "close");
		}
	}
}

function initDiv()
{
	var aDiv = document.getElementsByTagName("div");
	for(var i = 0; i < aDiv.length; i++)
	{
		if(aDiv[i].className == "wv-detail"){ aDiv[i].style.display = 'none'; }
	}
}