function lay_hide(id) {
	area = document.getElementById(id);
	area.style.display = 'none';
}
function lay_show(id) {
	area = document.getElementById(id);
	area.style.display = 'block';
}
function bold(element) {
	if(element == '1') {
				
		//$("ImageNavi1").removeClassName("text-orangeX");
		//$("ImageNavi2").removeClassName("text-goldX");		
		
		//$("ImageNavi1").addClassName("text-goldX");
		//$("ImageNavi2").addClassName("text-orangeX");
		
		document.getElementById('ImageNavi3').innerHTML = "3";
		document.getElementById('ImageNavi2').innerHTML = "2";
		document.getElementById('ImageNavi1').innerHTML = "<b>1</b>";
	}
	if(element == '2') {

		//$("ImageNavi1").removeClassName("text-goldX");
		//$("ImageNavi2").removeClassName("text-orangeX");		
		
		//$("ImageNavi1").addClassName("text-orangeX");
		//$("ImageNavi2").addClassName("text-goldX");

		document.getElementById('ImageNavi1').innerHTML = "1";
		document.getElementById('ImageNavi3').innerHTML = "3";
		document.getElementById('ImageNavi2').innerHTML = "<b>2</b>";
	}
	if(element == '3') {

		//$("ImageNavi1").removeClassName("text-goldX");
		//$("ImageNavi2").removeClassName("text-orangeX");		
		
		//$("ImageNavi1").addClassName("text-orangeX");
		//$("ImageNavi2").addClassName("text-goldX");

		document.getElementById('ImageNavi1').innerHTML = "1";
		document.getElementById('ImageNavi2').innerHTML = "2";
		document.getElementById('ImageNavi3').innerHTML = "<b>3</b>";
	}
}