/*
var
*/
var lastElementId;

/*
display hover box
*/
function show(nowElementId,level)
{
	if(document.getElementById(nowElementId).style.display == 'block')
	{
		document.getElementById(nowElementId).style.display = 'none';
	}
	else
	{
		document.getElementById(nowElementId).style.display = 'block';
		//alert(nowElementId);			
	}
	/*document.getElementById(level).style.height = '700px';*/
}
function noshow(nowElementId,level)
{
	document.getElementById(nowElementId).style.display = 'none';
	/*document.getElementById(level).style.height = '30px';*/
}

/*
hover effect
*/
function navigationActive(nowElementId,level)
{
	document.getElementById(nowElementId).className = 'mactive'+level;
}
function navigationInactive(nowElementId,level)
{
	document.getElementById(nowElementId).className = 'minactive'+level;
}

function changePic(imageId, imgSrc)
{
	document.getElementById(imageId).src = imgSrc;
}