function changenewnavi(ori, newsrc)
	{
		//x = Math.random()*350;
		//y = Math.random()*350;
		//imgobj.style.position='absolute';
		ori.src = newsrc
	}
function changebacknavi(ori, newsrc)
	{
		//x = Math.random()*350;
		//y = Math.random()*350;
		//imgobj.style.position='absolute';
		ori.src = newsrc
	}

function showmenu(elmnt)
{
document.getElementById(elmnt).style.visibility="visible"
}

function hidemenu(elmnt)
{
document.getElementById(elmnt).style.visibility="hidden"
}

function displayImage(picName, windowName, windowWidth, windowHeight)
{
  return window.open(picName,windowName,"toolbar=no,scrollbars=no,resizable=no,width=" + (parseInt(windowWidth)+20)  + ",height=" + (parseInt(windowHeight)+20))
}
  
function doNothing(){}