function changeImg1(imgName,imgURL)
{
	//alert(imgName);
	document.getElementById(imgName).src='../img/' + imgURL + '1.jpg';
}
function changeImg2(imgName,imgURL)
{
	//alert(imgName);
	document.getElementById(imgName).src='../img/' + imgURL + '.jpg';
}
function showmenu(elmnt)
{
	document.getElementById(elmnt).style.visibility="visible"
}
function hidemenu(elmnt)
{
	document.getElementById(elmnt).style.visibility="hidden"
}